Let's get our bearings turning in the world

Better performance for maximum operation

Needle roller bearings

VDObearings offers a range of needle roller bearings with higher load carrying capacity and the ability to withstand oscillations with greater rigidity. With needle roller bearing solutions, Ritbearing has a variety of styles, including inch series and metric sizes. Other needle roller bearing options include single row, double row, and solid or split cage.

Common types of needle roller bearings available through VDObearings include RNA49xx series, RNA59xx series, RNA69xx series, NK, NA49xx series, NA59xx series, NA69xx series, NKI series, RNAF series, NAFW series, IR series, IRZ series, KT series.

Bearing data

We also provide various (K, NK, HK, NSK, RNA) and other types of needle roller bearings, if you need please contact us, and we will provide you with a special salesman to communicate with you.

NSK

RNA

Part Number	d	D	B	Cr	C0r	Reference Speed	Limiting Speed	Weight
K 3x5x7 TN	3mm	5mm	7mm	1.51 KN	1.34 KN	40000 r/min	45000 r/min	0.3 g
K 3x5x9 TN	3 mm	5 mm	9 mm	1.68 KN	1.53 KN	40 000 r/min	45 000 r/min	0.4 g
K 3x6x7 TN	3 mm	6 mm	7 mm	1.42 KN	1.02 KN	38 000 r/min	38 000 r/min	0.4 g
K 4x7x7 TN	4 mm	7 mm	7mm	1.72 KN	1.32 KN	36 000 r/min	43 000 r/min	0.5 g
K 4x7x10 TN	4mm	7mm	10mm	2.29 KN	1.9 KN	36 000 r/min	43 000 r/min	0.7 g
K 5x8x8 TN	5 mm	8 mm	8 mm	2.29 KN	2 KN	36 000 r/min	40 000 r/min	0.7 g
K 5x8x10 TN	5 mm	8 mm	10 mm	2.92 KN	2.7 KN	36 000 r/min	40 000 r/min	0.9 g
K 6x9x8 TN	6 mm	9 mm	8 mm	2.55 KN	2.36 KN	34 000 r/min	38 000 r/min	0.8 g
K 6x9x10 TN	6mm	9mm	10mm	3.3 KN	3.2 KN	34 000 r/min	38 000 r/min	1.1 g
K 6x10x13 TN	6 mm	10 mm	13 mm	3.69 KN	3.15 KN	34 000 r/min	38 000 r/min	1.9 g
K 7x9x7 TN	7 mm	9 mm	7 mm	1.68 KN	1.83 KN	34 000 r/min	38 000 r/min	0.6 g
K 7x10x8 TN	7 mm	10 mm	8 mm	2.81 KN	2.75 KN	32 000 r/min	36 000 r/min	0.9 g
K 7x10x10 TN	7 mm	10 mm	10 mm	3.58 KN	3.75 KN	32 000 r/min	36 000 r/min	1 g
K 8x11x8 TN	8 mm	11 mm	8 mm	3.03 KN	3.1 KN	32 000 r/min	36 000 r/min	1 g
K 8x11x10 TN	8 mm	11 mm	10 mm	3.8 KN	4.25 KN	32 000 r/min	36 000 r/min	1.2 g
K 8x11x13 TN	8 mm	11 mm	13 mm	5.01 KN	5.85 KN	32 000 r/min	36 000 r/min	1.7 g
K 8x12x10 TN	8 mm	12 mm	10 mm	4.84 KN	4.75 KN	30 000 r/min	34 000 r/min	2 g
K 9x12x10 TN	9 mm	12 mm	10 mm	4.4 KN	5.2 KN	30 000 r/min	34 000 r/min	1.5 g
K 9x12x13 TN	9 mm	12 mm	13 mm	5.72 KN	7.2 KN	30 000 r/min	34 000 r/min	2.1 g
K 10x13x10 TN	10 mm	13 mm	10 mm	4.57 KN	5.7 KN	28 000 r/min	32 000 r/min	1.6 g
K 10x13x13 TN	10 mm	13 mm	13 mm	5.94 KN	8 KN	28 000 r/min	32 000 r/min	2.3 g
K 10x13x16 TN	10 mm	13 mm	16 mm	6.82 KN	9.5 KN	28 000 r/min	32 000 r/min	2.9 g
K 10x14x10 TN	10 mm	14 mm	10 mm	5.61 KN	6.1 KN	28 000 r/min	32 000 r/min	2.5 g
K 10x14x13 TN	10 mm	14 mm	13 mm	5.83 KN	6.3 KN	28 000 r/min	32 000 r/min	4.6 g
K 10x16x12 TN	10 mm	16 mm	12 mm	7.65 KN	7.2 KN	28 000 r/min	32 000 r/min	5.5 g
K 12x15x10 TN	12 mm	15 mm	10 mm	4.73 KN	6.2 KN	26 000 r/min	30 000 r/min	2.9 g
K 12x15x13 TN	12 mm	15 mm	13 mm	6.16 KN	8.65 KN	26 000 r/min	30 000 r/min	2.3 g
K 12x16x13 TN	12 mm	16 mm	13 mm	7.65 KN	9.5 KN	26 000 r/min	30 000 r/min	3.6 g
K 12x17x13 TN	12 mm	17 mm	13 mm	9.13 KN	10.4 KN	26 000 r/min	30 000 r/min	4.9 g
K 12x18x12 TN	12 mm	18 mm	12 mm	9.52 KN	10 KN	26 000 r/min	30 000 r/min	6 g
K 14x18x10	14 mm	18 mm	10 mm	6.93 KN	8.65 KN	24000 r/min	28000 r/min	4 g
K 14x18x13	14 mm	18 mm	13 mm	7.92 KN	10.2 KN	24000 r/min	28000 r/min	6.5 g
K 14x18x15 TN	14 mm	18 mm	15 mm	9.13 KN	12.5 KN	24000 r/min	28000 r/min	5 g
K 14x18x17	14 mm	18 mm	17 mm	10.5 KN	14.6 KN	24000 r/min	28000 r/min	8 g
K 15x19x13	15 mm	19 mm	13 mm	8.25 KN	11.2 KN	24000 r/min	28000 r/min	7 g
K 15x19x17	15 mm	19 mm	17 mm	10.8 KN	15.6 KN	24 000 r/min	28 000 r/min	9.5 g
K 15x21x15	15 mm	21 mm	15 mm	13.8 KN	16.3 KN	24 000 r/min	26 000 r/min	11 g
K 15x21x21	15 mm	21 mm	21 mm	18.7 KN	24.5 KN	24 000 r/min	26 000 r/min	17 g
K 16x20x10	16 mm	20 mm	10 mm	7.48 KN	10 KN	24 000 r/min	26 000 r/min	5.5 g
K 16x20x13	16 mm	20 mm	13 mm	8.58 KN	12 KN	24 000 r/min	26 000 r/min	7.5 g
K 16x20x17	16 mm	20 mm	17 mm	11.2 KN	17 KN	24 000 r/min	26 000 r/min	10 g
K 16x22x12	16 mm	22 mm	12 mm	11 KN	12.5 KN	22 000 r/min	26 000 r/min	10 g
K 16x22x16	16 mm	22 mm	16 mm	14.2 KN	17.6 KN	22 000 r/min	26 000 r/min	12 g
K 16x22x20	16 mm	22 mm	20 mm	17.6 KN	22.8 KN	22 000 r/min	26 000 r/min	17 g
K 16x24x20	16 mm	24 mm	20 mm	20.5 KN	23.6 KN	22 000 r/min	24 000 r/min	22 g
K 17x21x10	17 mm	21 mm	10 mm	7.81 KN	10.8 KN	22 000 r/min	26 000 r/min	5.5 g
K 18x24x12	18 mm	24 mm	12 mm	12.1 KN	15 KN	20 000 r/min	24 000 r/min	12 g
K 19x23x13	19 mm	23 mm	13 mm	9.13 KN	13.7 KN	20 000 r/min	24 000 r/min	8 g
K 20x24x10	20 mm	24 mm	10 mm	8.58 KN	12.9 KN	20 000 r/min	22 000 r/min	6.5 g
K 20x24x13	20 mm	24 mm	13 mm	9.52 KN	14.6 KN	20 000 r/min	22 000 r/min	9 g
K 20x24x17	20 mm	24 mm	17 mm	12.5 KN	20.8 KN	20 000 r/min	22 000 r/min	12 g
K 20x26x17	20 mm	26 mm	17 mm	18.3 KN	26 KN	19 000 r/min	22 000 r/min	16 g
K 20x26x20	20 mm	26 mm	20 mm	20.1 KN	29 KN	19 000 r/min	22 000 r/min	19 g
K 20x28x20	20 mm	28 mm	20 mm	22.9 KN	28.5 KN	18 000 r/min	20 000 r/min	27 g
K 20x28x25	20 mm	28 mm	25 mm	29.2 KN	39 KN	18 000 r/min	20 000 r/min	32 g
K 22x30x15 TN	22 mm	30 mm	15 mm	19 KN	23.6 KN	17000 r/min	19000 r/min	18 g
K 23x35x16 TN	23 mm	35 mm	16 mm	24.2 KN	23.2 KN	15000 r/min	17000 r/min	29 g
K 20x30x30	20 mm	30 mm	30 mm	34.1 KN	41.5 KN	17 000 r/min	20 000 r/min	49 g
K 21x25x13	21 mm	25 mm	13 mm	9.68 KN	15.3 KN	19 000 r/min	22 000 r/min	9 g
K 22x26x10	22 mm	26 mm	10 mm	8.8 KN	13.7 KN	18 000 r/min	20 000 r/min	7.5 g
K 22x26x13	22 mm	26 mm	13 mm	10.1 KN	16.3 KN	18 000 r/min	20 000 r/min	9.5 g
K 22x26x17	22 mm	26 mm	17 mm	13.2 KN	22.8 KN	18 000 r/min	20 000 r/min	12 g
K 22x28x17	22 mm	28 mm	17 mm	18.3 KN	27 KN	17 000 r/min	20 000 r/min	18 g
K 22x29x16	22 mm	29 mm	16 mm	19.4 KN	25.5 KN	17 000 r/min	19 000 r/min	16 g
K 24x28x10	24 mm	28 mm	10 mm	9.35 KN	15 KN	17 000 r/min	19 000 r/min	8.5 g
K 24x28x13	24 mm	28 mm	13 mm	10.6 KN	18 KN	17 000 r/min	19 000 r/min	10 g
K 24x30x17	24 mm	30 mm	17 mm	18.7 KN	27.5 KN	16 000 r/min	18 000 r/min	19 g
K 25x29x10	25 mm	29 mm	10 mm	9.52 KN	15.6 KN	16 000 r/min	18 000 r/min	8.5 g
K 25x29x13	25 mm	29 mm	13 mm	10.8 KN	18.6 KN	16 000 r/min	18 000 r/min	11 g
K 25x30x17	25 mm	30 mm	17 mm	17.9 KN	30.5 KN	16 000 r/min	18 000 r/min	16 g
K 25x30x20	25 mm	30 mm	20 mm	20.9 KN	36.5 KN	16 000 r/min	18 000 r/min	18 g
K 25x32x16	25 mm	32 mm	16 mm	19.8 KN	27.5 KN	15 000 r/min	17 000 r/min	21 g
K 25x33x20	25 mm	33 mm	20 mm	27.5 KN	38 KN	15 000 r/min	17 000 r/min	33 g
K 25x35x30	25 mm	35 mm	30 mm	44.6 KN	62 KN	15 000 r/min	17 000 r/min	65 g
K 26x30x13	26 mm	30 mm	13 mm	11.2 KN	19.6 KN	16 000 r/min	18 000 r/min	11 g
K 28x33x13	28 mm	33 mm	13 mm	14.7 KN	24.5 KN	14 000 r/min	16 000 r/min	13 g
K 28x33x17	28 mm	33 mm	17 mm	19 KN	33.5 KN	14 000 r/min	16 000 r/min	17 g
K 30x35x13	30 mm	35 mm	13 mm	15.1 KN	25.5 KN	13 000 r/min	15 000 r/min	14 g
K 30x35x17	30 mm	35 mm	17 mm	18.7 KN	34 KN	13 000 r/min	15 000 r/min	19 g
K 30x35x27	30 mm	35 mm	27 mm	29.2 KN	60 KN	13 000 r/min	15 000 r/min	30 g
K 30x37x18	30 mm	37 mm	18 mm	25.1 KN	39 KN	13 000 r/min	15 000 r/min	30 g
K 30x40x30	30 mm	40 mm	30 mm	46.8 KN	69.5 KN	12 000 r/min	14 000 r/min	73 g
K 35x40x27 TN	35 mm	40 mm	27 mm	23.8 KN	49 KN	12000 r/min	13000 r/min	39 g
K 32x37x13	32 mm	37 mm	13 mm	14.7 KN	25.5 KN	13 000 r/min	14 000 r/min	18 g
K 32x37x17	32 mm	37 mm	17 mm	19 KN	35.5 KN	13 000 r/min	14 000 r/min	19 g
K 32x38x20	32 mm	38 mm	20 mm	25.1 KN	45 KN	12 000 r/min	14 000 r/min	30 g
K 32x40x25	32 mm	40 mm	25 mm	35.8 KN	58.5 KN	12 000 r/min	14 000 r/min	49 g
K 35x40x13	35 mm	40 mm	13 mm	15.4 KN	28 KN	12 000 r/min	13 000 r/min	19 g
K 35x40x17	35 mm	40 mm	17 mm	19.8 KN	39 KN	12 000 r/min	13 000 r/min	21 g
K 35x42x16	35 mm	42 mm	16 mm	23.3 KN	37.5 KN	11 000 r/min	13 000 r/min	34 g
K 35x42x18	35 mm	42 mm	18 mm	26.4 KN	44 KN	11 000 r/min	13 000 r/min	34 g
K 35x45x20	35 mm	45 mm	20 mm	35.2 KN	50 KN	11 000 r/min	12 000 r/min	56 g
K 37x42x17	37 mm	42 mm	17 mm	21.6 KN	43 KN	11 000 r/min	13 000 r/min	22 g
K 38x43x17	38 mm	43 mm	17 mm	19.8 KN	39 KN	11 000 r/min	12 000 r/min	29 g
K 38x46x32	38 mm	46 mm	32 mm	52.3 KN	100 KN	10 000 r/min	12 000 r/min	76 g
K 40x45x17	40 mm	45 mm	17 mm	20.5 KN	41.5 KN	10 000 r/min	12 000 r/min	31 g
K 40x45x27	40 mm	45 mm	27 mm	31.4 KN	73.5 KN	10 000 r/min	12 000 r/min	46 g
K 40x48x20	40 mm	48 mm	20 mm	34.7 KN	58.5 KN	10 000 r/min	11 000 r/min	49 g
K 32x37x13	42 mm	47 mm	17 mm	20.9 KN	43 KN	10 000 r/min	11 000 r/min	32 g
K 32x37x17	42 mm	50 mm	20 mm	33.6 KN	57 KN	9 500 r/min	11 000 r/min	53 g
K 32x38x20	43 mm	48 mm	17 mm	20.9 KN	43 KN	9 500 r/min	11 000 r/min	30 g
K 32x40x25	45 mm	50 mm	17 mm	21.6 KN	46.5 KN	9 000 r/min	10 000 r/min	34 g
K 35x40x13	45 mm	50 mm	27 mm	33 KN	81.5 KN	9 000 r/min	10 000 r/min	52 g
K 35x40x17	45 mm	53 mm	28 mm	49.5 KN	98 KN	9 000 r/min	10 000 r/min	81 g
K 35x42x16	47 mm	52 mm	17 mm	22.4 KN	49 KN	9 000 r/min	10 000 r/min	35 g
K 35x42x18	50 mm	55 mm	20 mm	25.5 KN	60 KN	8 500 r/min	9 500 r/min	43 g
K 35x45x20	50 mm	55 mm	30 mm	37.4 KN	98 KN	8 500 r/min	9 500 r/min	65 g
K 37x42x17	50 mm	57 mm	18 mm	31.9 KN	64 KN	8 000 r/min	9 000 r/min	47 g
K 38x43x17	50 mm	58 mm	25 mm	41.8 KN	81.5 KN	8 000 r/min	9 000 r/min	90 g
K 38x46x32	55 mm	60 mm	20 mm	27 KN	67 KN	7 500 r/min	8 500 r/min	40 g
K 40x45x17	55 mm	60 mm	30 mm	39.6 KN	108 KN	7 500 r/min	8 500 r/min	71 g
K 40x45x27	55 mm	62 mm	18 mm	34.1 KN	71 KN	7 500 r/min	8 500 r/min	52 g
K 40x48x20	55 mm	63 mm	32 mm	59.4 KN	129 KN	7 500 r/min	8 500 r/min	102 g
K 60x65x20	60 mm	65 mm	20 mm	28.1 KN	72 KN	7 000 r/min	8 000 r/min	52 g
K 60x68x25	60 mm	68 mm	25 mm	51.2 KN	112 KN	6 700 r/min	7 500 r/min	89 g
K 65x73x30	65 mm	73 mm	30 mm	53.9 KN	125 KN	6 300 r/min	7 000 r/min	141 g
K 70x76x20	70 mm	76 mm	20 mm	34.1 KN	86.5 KN	6 000 r/min	6 700 r/min	71 g
K 70x78x30	70 mm	78 mm	30 mm	57.2 KN	137 KN	6 000 r/min	6 700 r/min	148 g
K 75x83x23	75 mm	83 mm	23 mm	47.3 KN	110 KN	5 300 r/min	6 300 r/min	124 g
K 80x88x30	80 mm	88 mm	30 mm	68.2 KN	176 KN	5 000 r/min	6 000 r/min	138 g
K 85x92x20	85 mm	92 mm	20 mm	42.9 KN	108 KN	4 800 r/min	5 600 r/min	102 g
K 90x97x20	90 mm	97 mm	20 mm	42.9 KN	114 KN	4 500 r/min	5 300 r/min	109 g
K 90x98x30	90 mm	98 mm	30 mm	64.4 KN	173 KN	4 500 r/min	5 300 r/min	172 g
K 95x103x30	95 mm	103 mm	30 mm	66 KN	180 KN	4 300 r/min	5 000 r/min	165 g
K 100x108x27	100 mm	108 mm	27 mm	55 KN	143 KN	4 000 r/min	4 800 r/min	185 g

Part Number	b	D	C	Cr	C0r	Reference Speed	Limiting Speed	Weight
HK 0812.2RS	8 mm	12 mm	12 mm	2.7 KN	2.75 KN	0	13000 r/min	3.3 g
HK 1014.2RS	10 mm	14 mm	14 mm	4.29 KN	5.3 KN	0	12000 r/min	4.6 g
HK 1216.2RS	12 mm	18 mm	16 mm	6.27 KN	7.35 KN	0	10000 r/min	11 g
HK 1620.2RS	16 mm	22 mm	20 mm	10.5 KN	15.6 KN	0	9000 r/min	18 g
HK 1522	15 mm	21 mm	22 mm	13 KN	20 KN	15000 r/min	16000 r/min	20 g
HK 1622	16 mm	22 mm	22 mm	12.8 KN	19.6 KN	14000 r/min	16000 r/min	24 g
HK 0306 TN	3 mm	6.5 mm	6 mm	1.23 KN	0.88 KN	24 000 r/min	26 000 r/min	1 g
HK 0408	4 mm	8 mm	8 mm	1.76 KN	1.37 KN	22 000 r/min	26 000 r/min	2 g
HK 0509	5 mm	9 mm	9 mm	2.38 KN	2.08 KN	22 000 r/min	24 000 r/min	2 g
HK 0608	6 mm	10 mm	8 mm	2.01 KN	1.73 KN	20 000 r/min	22 000 r/min	2.1 g
HK 0609	6 mm	10 mm	9 mm	2.81 KN	2.7 KN	20 000 r/min	22 000 r/min	2.5 g
HK 0709	7 mm	11 mm	9 mm	3.03 KN	3.05 KN	20 000 r/min	22 000 r/min	2.6 g
HK 0808	8 mm	12 mm	8 mm	2.7 KN	2.75 KN	19 000 r/min	22 000 r/min	2.7 g
HK 0810	8 mm	12 mm	10 mm	3.69 KN	4.05 KN	19 000 r/min	22 000 r/min	3 g
HK 0908	9 mm	13 mm	8 mm	3.52 KN	3.9 KN	18 000 r/min	20 000 r/min	3 g
HK 0910	9 mm	13 mm	10 mm	4.13 KN	4.8 KN	18 000 r/min	20 000 r/min	4 g
HK 0912	9 mm	13 mm	12 mm	5.12 KN	6.4 KN	18 000 r/min	20 000 r/min	4.6 g
HK 1010	10 mm	14 mm	10 mm	4.29 KN	5.3 KN	18 000 r/min	20 000 r/min	4.1 g
HK 1012	10 mm	14 mm	12 mm	5.39 KN	6.95 KN	18 000 r/min	20 000 r/min	4.8 g
HK 1015	10 mm	14 mm	15 mm	6.6 KN	9 KN	18 000 r/min	20 000 r/min	6 g
HK 1210	12 mm	16 mm	10 mm	4.84 KN	6.4 KN	16 000 r/min	18 000 r/min	4.6 g
HK 1212	12 mm	18 mm	12 mm	6.27 KN	7.35 KN	16 000 r/min	18 000 r/min	9.5 g
HK 1312	13 mm	19 mm	12 mm	6.6 KN	8 KN	16 000 r/min	17 000 r/min	10.5 g
HK 1412	14 mm	20 mm	12 mm	6.82 KN	8.65 KN	15 000 r/min	17 000 r/min	10.5 g
HK 1512	15 mm	21 mm	12 mm	7.65 KN	9.5 KN	15 000 r/min	16 000 r/min	11 g
HK 1516	15 mm	21 mm	16 mm	10.1 KN	14.6 KN	15 000 r/min	16 000 r/min	15 g
HK 1612	16 mm	22 mm	12 mm	7.37 KN	9.8 KN	14 000 r/min	16 000 r/min	12 g
HK 1616	16 mm	22 mm	16 mm	10.5 KN	15.6 KN	14 000 r/min	16 000 r/min	16 g
HK 1712	17 mm	23 mm	12 mm	7.65 KN	10.6 KN	14 000 r/min	15 000 r/min	13 g
HK 2030	20 mm	26 mm	30 mm	20.9 KN	40.5 KN	12000 r/min	14000 r/min	35 g
HK 2538	25 mm	32 mm	38 mm	33 KN	65.5 KN	9500 r/min	11000 r/min	64 g
HK 3038	30 mm	37 mm	38 mm	35.8 KN	80 KN	8000 r/min	9000 r/min	76 g
HK 1812	18 mm	24 mm	12 mm	7.92 KN	11.2 KN	13 000 r/min	15 000 r/min	13 g
HK 1816	18 mm	24 mm	16 mm	11.2 KN	17.6 KN	13 000 r/min	15 000 r/min	18 g
HK 2010	20 mm	26 mm	10 mm	6.16 KN	8.5 KN	12 000 r/min	14 000 r/min	12 g
HK 2012	20 mm	26 mm	12 mm	8.42 KN	12.5 KN	12 000 r/min	14 000 r/min	14 g
HK 2016	20 mm	26 mm	16 mm	12.3 KN	20.4 KN	12 000 r/min	14 000 r/min	19 g
HK 2020	20 mm	26 mm	20 mm	15.1 KN	26.5 KN	12 000 r/min	14 000 r/min	24 g
HK 2210	22 mm	28 mm	10 mm	7.21 KN	10.6 KN	11 000 r/min	12 000 r/min	13 g
HK 2212	22 mm	28 mm	12 mm	8.8 KN	13.7 KN	11 000 r/min	12 000 r/min	15 g
HK 2216	22 mm	28 mm	16 mm	13 KN	22.4 KN	11 000 r/min	12 000 r/min	21 g
HK 2220	22 mm	28 mm	20 mm	15.7 KN	29 KN	11 000 r/min	12 000 r/min	26 g
HK 2512	25 mm	32 mm	12 mm	10.5 KN	15.3 KN	9 500 r/min	11 000 r/min	20 g
HK 2516	25 mm	32 mm	16 mm	15.1 KN	24 KN	9 500 r/min	11 000 r/min	25 g
HK 2520	25 mm	32 mm	20 mm	19 KN	32.5 KN	9 500 r/min	11 000 r/min	33 g
HK 2526	25 mm	32 mm	26 mm	24.2 KN	45 KN	9 500 r/min	11 000 r/min	44 g
HK 2816	28 mm	35 mm	16 mm	15.7 KN	26.5 KN	9 000 r/min	9 500 r/min	26.5 g
HK 2820	28 mm	35 mm	20 mm	20.1 KN	36.5 KN	9 000 r/min	9 500 r/min	36 g
HK 3012	30 mm	37 mm	12 mm	11.7 KN	18.3 KN	8 000 r/min	9 000 r/min	23 g
HK 3016	30 mm	37 mm	16 mm	16.5 KN	29 KN	8 000 r/min	9 000 r/min	31 g
HK 3020	30 mm	37 mm	20 mm	20.9 KN	40 KN	8 000 r/min	9 000 r/min	38 g
HK 3026	30 mm	37 mm	26 mm	27 KN	54 KN	8 000 r/min	9 000 r/min	51 g
HK 3512	35 mm	42 mm	12 mm	12.5 KN	21.6 KN	7 000 r/min	8 000 r/min	27 g
HK 3516	35 mm	42 mm	16 mm	17.9 KN	34 KN	7 000 r/min	8 000 r/min	36 g
HK 3520	35 mm	42 mm	20 mm	22.9 KN	46.5 KN	7 000 r/min	8 000 r/min	44 g
HK 4012	40 mm	47 mm	12 mm	13.4 KN	24.5 KN	6 300 r/min	7 000 r/min	30 g
HK 4016	40 mm	47 mm	16 mm	19 KN	39 KN	6 300 r/min	7 000 r/min	39 g
HK 4020	40 mm	47 mm	20 mm	24.2 KN	53 KN	6 300 r/min	7 000 r/min	54 g
HK 4512	45 mm	52 mm	12 mm	14.2 KN	27.5 KN	5 600 r/min	6 300 r/min	33 g
HK 4516	45 mm	52 mm	16 mm	20.5 KN	43 KN	5 600 r/min	6 300 r/min	47 g
HK 4520	45 mm	52 mm	20 mm	26 KN	60 KN	5 600 r/min	6 300 r/min	56 g
HK 5020	50 mm	58 mm	20 mm	29.2 KN	63 KN	5 000 r/min	5 600 r/min	70 g
HK 5025	50 mm	58 mm	25 mm	36.9 KN	85 KN	5 000 r/min	5 600 r/min	85 g
HK 5520	55 mm	63 mm	20 mm	30.3 KN	67 KN	4 500 r/min	5 000 r/min	74 g
HK 5528	55 mm	63 mm	28 mm	41.8 KN	104 KN	4 500 r/min	5 000 r/min	105 g
HK 6012	60 mm	68 mm	12 mm	17.6 KN	32 KN	4 300 r/min	4 800 r/min	49 g
HK 6020	60 mm	68 mm	20 mm	31.9 KN	75 KN	4 300 r/min	4 800 r/min	81 g
HK 6032	60 mm	68 mm	32 mm	51.2 KN	137 KN	4 300 r/min	4 800 r/min	136 g
HK 1816.2RS	18 mm	24 mm	16 mm	7.92 KN	11.2 KN	0	8 500 r/min	15 g
HK 2016.2RS	20 mm	26 mm	16 mm	8.42 KN	12.5 KN	0	8 000 r/min	18 g
HK 2020.2RS	20 mm	26 mm	20 mm	12.3 KN	20.4 KN	0	8 000 r/min	23 g
HK 2216.2RS	22 mm	28 mm	16 mm	8.8 KN	13.7 KN	0	7 500 r/min	18 g
HK 2220.2RS	22 mm	28 mm	20 mm	13 KN	22.4 KN	0	7 500 r/min	23 g
HK 2520.2RS	25 mm	32 mm	20 mm	15.1 KN	24 KN	0	6 700 r/min	31 g
HK 2530.2RS	25 mm	32 mm	30 mm	24.2 KN	45 KN	0	6 700 r/min	47 g
HK 2820.2RS	28 mm	35 mm	20 mm	15.7 KN	26.5 KN	0	6 300 r/min	34 g
HK 3016.2RS	30 mm	37 mm	16 mm	11.7 KN	18.3 KN	0	5 600 r/min	31 g
HK 3520.2RS	35 mm	42 mm	20 mm	17.9 KN	34 KN	0	5 000 r/min	41 g
HK 4016.2RS	40 mm	47 mm	16 mm	14.5 KN	27.5 KN	0	4 500 r/min	37 g
HK 4020.2RS	40 mm	47 mm	20 mm	19 KN	39 KN	0	4 500 r/min	48 g
HK 4520.2RS	45 mm	52 mm	20 mm	20.5 KN	43 KN	0	4 000 r/min	54 g
HK 5024.2RS	50 mm	58 mm	24 mm	29.2 KN	63 KN	0	3 600 r/min	81 g

Part Number	d	D	C	Cr	C0r	Reference Speed	Limiting Speed	Weight
NK 5/10 TN	5 mm	10 mm	10 mm	2.29 KN	2 KN	36 000 r/min	40 000 r/min	0.0031 g
NK 5/12 TN	5 mm	10 mm	12 mm	2.92 KN	2.7 KN	36 000 r/min	40 000 r/min	0.0037 g
NK 6/10 TN	6 mm	12 mm	10 mm	2.55 KN	2.36 KN	34 000 r/min	38 000 r/min	0.0047 g
NK 6/12 TN	6 mm	12 mm	12 mm	3.3 KN	3.2 KN	34 000 r/min	38 000 r/min	0.0057 g
NK 7/10 TN	7 mm	14 mm	10 mm	2.81 KN	2.75 KN	32 000 r/min	36 000 r/min	0.0069 g
NK 7/12 TN	7 mm	14 mm	12 mm	3.58 KN	3.75 KN	32 000 r/min	36 000 r/min	0.0082 g
NK 8/12 TN	8 mm	15 mm	12 mm	3.8 KN	4.25 KN	32 000 r/min	36 000 r/min	0.0087 g
NK 8/16 TN	8 mm	15 mm	16 mm	5.01 KN	5.85 KN	32 000 r/min	36 000 r/min	0.012 g
NK 9/12 TN	9 mm	16 mm	12 mm	4.4 KN	5.2 KN	30 000 r/min	34 000 r/min	0.01 g
NK 9/16 TN	9 mm	16 mm	16 mm	5.72 KN	7.2 KN	30 000 r/min	34 000 r/min	0.013 g
NK 10/12 TN	10 mm	17 mm	12 mm	4.57 KN	5.7 KN	28 000 r/min	32 000 r/min	0.01 g
NK 10/16 TN	10 mm	17 mm	16 mm	5.94 KN	8 KN	28 000 r/min	32 000 r/min	0.013 g
NK 12/12	12 mm	19 mm	12 mm	6.71 KN	8.15 KN	26 000 r/min	30 000 r/min	0.012 g
NK 12/16	12 mm	19 mm	16 mm	9.13 KN	12 KN	26 000 r/min	30 000 r/min	0.016 g
NK 14/16	14 mm	22 mm	16 mm	10.2 KN	12.5 KN	24 000 r/min	28 000 r/min	0.021 g
NK 14/20	14 mm	22 mm	20 mm	12.8 KN	16.6 KN	24 000 r/min	28 000 r/min	0.026 g
NK 15/16	15 mm	23 mm	16 mm	11 KN	14 KN	24 000 r/min	26 000 r/min	0.022 g
NK 15/20	15 mm	23 mm	20 mm	13.8 KN	18.3 KN	24 000 r/min	26 000 r/min	0.027 g
NK 16/16	16 mm	24 mm	16 mm	11.7 KN	15.3 KN	22 000 r/min	26 000 r/min	0.022 g
NK 16/20	16 mm	24 mm	20 mm	14.5 KN	20 KN	22 000 r/min	26 000 r/min	0.028 g
NK 17/16	17 mm	25 mm	16 mm	12.1 KN	16.6 KN	22 000 r/min	26 000 r/min	0.024 g
NK 17/20	17 mm	25 mm	20 mm	15.1 KN	22 KN	22 000 r/min	26 000 r/min	0.03 g
NK 18/16	18 mm	26 mm	16 mm	12.8 KN	17.6 KN	22 000 r/min	24 000 r/min	0.025 g
NK 18/20	18 mm	26 mm	20 mm	16.1 KN	23.6 KN	22 000 r/min	24 000 r/min	0.031 g
NK 19/16	19 mm	27 mm	16 mm	13.4 KN	19 KN	20 000 r/min	24 000 r/min	0.026 g
NK 19/20	19 mm	27 mm	20 mm	16.5 KN	25.5 KN	20 000 r/min	24 000 r/min	0.032 g
NK 29/20 TN	29 mm	38 mm	20 mm	24.6 KN	42.5 KN	14000 r/min	15000 r/min	0.05 g
NK 20/16	20 mm	28 mm	16 mm	13.2 KN	19.3 KN	19 000 r/min	22 000 r/min	0.027 g
NK 20/20	20 mm	28 mm	20 mm	16.5 KN	25.5 KN	19 000 r/min	22 000 r/min	0.034 g
NKS 20	20 mm	32 mm	20 mm	23.3 KN	27 KN	18 000 r/min	20 000 r/min	0.049 g
NK 21/16	20 mm	29 mm	16 mm	13.8 KN	20.4 KN	19 000 r/min	22 000 r/min	0.028 g
NK 21/20	21 mm	29 mm	20 mm	17.2 KN	27 KN	19 000 r/min	22 000 r/min	0.035 g
NK 22/16	22 mm	30 mm	16 mm	14.2 KN	21.6 KN	18 000 r/min	20 000 r/min	0.03 g
NK 22/20	22 mm	30 mm	20 mm	17.9 KN	29 KN	18 000 r/min	20 000 r/min	0.037 g
NK 24/16	24 mm	32 mm	16 mm	15.4 KN	24.5 KN	16 000 r/min	19 000 r/min	0.032 g
NK 24/20	24 mm	32 mm	20 mm	19 KN	32.5 KN	16 000 r/min	19 000 r/min	0.04 g
NKS 24	24 mm	37 mm	20 mm	26 KN	33.5 KN	15 000 r/min	17 000 r/min	0.066 g
NK 25/16	25 mm	33 mm	16 mm	15.1 KN	24.5 KN	16 000 r/min	18 000 r/min	0.033 g
NK 25/20	25 mm	33 mm	20 mm	19 KN	32.5 KN	16 000 r/min	18 000 r/min	0.042 g
NKS 25	25 mm	38 mm	20 mm	27.5 KN	36 KN	15 000 r/min	17 000 r/min	0.068 g
NK 26/16	26 mm	34 mm	16 mm	15.7 KN	26 KN	15 000 r/min	17 000 r/min	0.034 g
NK 26/20	26 mm	34 mm	20 mm	19.4 KN	34.5 KN	15 000 r/min	17 000 r/min	0.042 g
NK 28/20	28 mm	37 mm	20 mm	22 KN	36.5 KN	14 000 r/min	16 000 r/min	0.052 g
NK 28/30	28 mm	37 mm	30 mm	31.9 KN	60 KN	14 000 r/min	16 000 r/min	0.082 g
NKS 28	28 mm	42 mm	20 mm	28.6 KN	39 KN	13 000 r/min	15 000 r/min	0.084 g
NK 29/30	29 mm	38 mm	30 mm	31.9 KN	60 KN	14 000 r/min	15 000 r/min	0.084 g
NKS 30	30 mm	45 mm	22 mm	31.9 KN	43 KN	12 000 r/min	14 000 r/min	0.1 g
NK 32/30	32 mm	42 mm	30 mm	34.1 KN	65.5 KN	12 000 r/min	14 000 r/min	0.1 g
NKS 32	32 mm	47 mm	22 mm	34.1 KN	46.5 KN	12 000 r/min	13 000 r/min	0.11 g
NKS 35	35 mm	50 mm	22 mm	35.2 KN	50 KN	11 000 r/min	12 000 r/min	0.12 g
NK 37/20	37 mm	47 mm	20 mm	25.1 KN	46.5 KN	11 000 r/min	12 000 r/min	0.077 g
NK 37/30	37 mm	47 mm	30 mm	36.9 KN	76.5 KN	11 000 r/min	12 000 r/min	0.11 g
NKS 37	37 mm	52 mm	22 mm	36.9 KN	54 KN	10 000 r/min	12 000 r/min	0.12 g
NK 38/20	38 mm	48 mm	20 mm	25.5 KN	49 KN	11 000 r/min	12 000 r/min	0.079 g
NK 38/30	38 mm	48 mm	30 mm	37.4 KN	80 KN	11 000 r/min	12 000 r/min	0.12 g
NK 40/30	40 mm	50 mm	30 mm	38 KN	83 KN	10 000 r/min	11 000 r/min	0.13 g
NKS 40	40 mm	55 mm	22 mm	38 KN	57 KN	9 500 r/min	11 000 r/min	0.13 g
NK 42/20	42 mm	52 mm	20 mm	27 KN	53 KN	9 500 r/min	11 000 r/min	0.086 g
NK 42/30	42 mm	52 mm	30 mm	39.1 KN	86.5 KN	9 500 r/min	11 000 r/min	0.13 g
NK 43/20	43 mm	53 mm	20 mm	27.5 KN	55 KN	9 500 r/min	11 000 r/min	0.086 g
NK 43/30	43 mm	53 mm	30 mm	40.2 KN	90 KN	9 500 r/min	11 000 r/min	0.13 g
NKS 43	43 mm	58 mm	22 mm	39.1 KN	61 KN	9 000 r/min	10 000 r/min	0.14 g
NKS 45	45 mm	60 mm	22 mm	40.2 KN	64 KN	8 500 r/min	10 000 r/min	0.15 g
NK 47/20	47 mm	57 mm	20 mm	29.2 KN	61 KN	8 500 r/min	10 000 r/min	0.095 g
NK 47/30	47 mm	57 mm	30 mm	41.8 KN	98 KN	8 500 r/min	10 000 r/min	0.14 g
NKS 50	50 mm	65 mm	22 mm	42.9 KN	72 KN	8 000 r/min	9 000 r/min	0.16 g
NK 55/25	55 mm	68 mm	25 mm	40.2 KN	88 KN	7 500 r/min	8 500 r/min	0.18 g
NK 55/35	55 mm	68 mm	35 mm	52.3 KN	122 KN	7 500 r/min	8 500 r/min	0.25 g
NKS 55	55 mm	72 mm	22 mm	44.6 KN	78 KN	7 000 r/min	8 000 r/min	0.22 g
NK 60/35	60 mm	72 mm	35 mm	55 KN	134 KN	6 700 r/min	7 500 r/min	0.26 g
NKS 60	60 mm	80 mm	28 mm	62.7 KN	104 KN	6 300 r/min	7 500 r/min	0.34 g
NK 65/25	65 mm	78 mm	25 mm	44 KN	104 KN	6 300 r/min	7 000 r/min	0.22 g
NK 65/35	65 mm	78 mm	35 mm	58.3 KN	146 KN	6 300 r/min	7 000 r/min	0.31 g
NKS 65	65 mm	85 mm	28 mm	66 KN	114 KN	6 000 r/min	6 700 r/min	0.36 g
NK 68/25	68 mm	82 mm	25 mm	44 KN	95 KN	6 000 r/min	6 700 r/min	0.24 g
NK 68/35	68 mm	82 mm	35 mm	60.5 KN	146 KN	6 000 r/min	6 700 r/min	0.34 g
NK 70/25	70 mm	85 mm	25 mm	44.6 KN	98 KN	6 000 r/min	6 700 r/min	0.26 g
NK 70/35	70 mm	85 mm	35 mm	61.6 KN	150 KN	6 000 r/min	6 700 r/min	0.37 g
NKS 70	70 mm	90 mm	28 mm	68.2 KN	120 KN	5 600 r/min	6 300 r/min	0.38 g
NK 30/20 TN	30 mm	40 mm	20 mm	25.1 KN	44 KN	13 000 r/min	15 000 r/min	0.061 g
NK 30/30 TN	30 mm	40 mm	30 mm	36.9 KN	72 KN	13 000 r/min	15 000 r/min	0.092 g
NK 32/20 TN	32 mm	42 mm	20 mm	26.4 KN	48 KN	12 000 r/min	14 000 r/min	0.064 g
NK 35/20 TN	35 mm	45 mm	20 mm	27.5 KN	52 KN	11 000 r/min	13 000 r/min	0.069 g
NK 35/30 TN	35 mm	45 mm	30 mm	40.2 KN	85 KN	11 000 r/min	13 000 r/min	0.11 g
NK 40/20 TN	40 mm	50 mm	20 mm	29.7 KN	60 KN	10 000 r/min	11 000 r/min	0.078 g
NK 45/20 TN	45 mm	55 mm	20 mm	31.4 KN	65.5 KN	9 000 r/min	10 000 r/min	0.085 g
NK 45/30 TN	45 mm	55 mm	30 mm	45.7 KN	108 KN	9 000 r/min	10 000 r/min	0.13 g
NK 50/25 TN	50 mm	62 mm	25 mm	42.9 KN	91.5 KN	8 000 r/min	9 000 r/min	0.15 g
NK 50/35 TN	50 mm	62 mm	35 mm	58.3 KN	137 KN	8 000 r/min	9 000 r/min	0.21 g
NK 60/25 TN	60 mm	72 mm	25 mm	46.8 KN	110 KN	6 700 r/min	7 500 r/min	0.17 g

NSK

Part Number	d	D	C	Cr	C0r	Reference Speed	Limiting Speed	Weight
NKS 20	20 mm	32 mm	20 mm	23.3 KN	27 KN	18 000 r/min	20 000 r/min	0.049 g
NKS 24	24 mm	37 mm	20 mm	26 KN	33.5 KN	15 000 r/min	17 000 r/min	0.066 g
NKS 25	25 mm	38 mm	20 mm	27.5 KN	36 KN	15 000 r/min	17 000 r/min	0.068 g
NKS 28	28 mm	42 mm	20 mm	28.6 KN	39 KN	13 000 r/min	15 000 r/min	0.084 g
NKS 30	30 mm	45 mm	22 mm	31.9 KN	43 KN	12 000 r/min	14 000 r/min	0.1 g
NKS 32	32 mm	47 mm	22 mm	34.1 KN	46.5 KN	12 000 r/min	13 000 r/min	0.11 g
NKS 35	35 mm	50 mm	22 mm	35.2 KN	50 KN	11 000 r/min	12 000 r/min	0.12 g
NKS 37	37 mm	52 mm	22 mm	36.9 KN	54 KN	10 000 r/min	12 000 r/min	0.12 g
NKS 40	40 mm	55 mm	22 mm	38 KN	57 KN	9 500 r/min	11 000 r/min	0.13 g
NKS 43	43 mm	58 mm	22 mm	39.1 KN	61 KN	9 000 r/min	10 000 r/min	0.14 g
NKS 45	45 mm	60 mm	22 mm	40.2 KN	64 KN	8 500 r/min	10 000 r/min	0.15 g
NKS 50	50 mm	65 mm	22 mm	42.9 KN	72 KN	8 000 r/min	9 000 r/min	0.16 g
NKS 55	55 mm	72 mm	22 mm	44.6 KN	78 KN	7 000 r/min	8 000 r/min	0.22 g
NKS 60	60 mm	80 mm	28 mm	62.7 KN	104 KN	6 300 r/min	7 500 r/min	0.34 g
NKS 65	65 mm	85 mm	28 mm	66 KN	114 KN	6 000 r/min	6 700 r/min	0.36 g
NKS 70	70 mm	90 mm	28 mm	68.2 KN	120 KN	5 600 r/min	6 300 r/min	0.38 g

RNA

Part Number	d	D	C	Cr	C0r	Reference Speed	Limiting Speed	Weight
RNA 4900.2RS	14 mm	22 mm	13 mm	7.37 KN	8.15 KN		12000 r/min	0.016 g
RNA 4901.2RS	16 mm	24 mm	13 mm	8.09 KN	9.65 KN		11000 r/min	0.018 g
RNA 4900	14 mm	22 mm	13 mm	8.8 KN	10.4 KN	24 000 r/min	28 000 r/min	0.017 g
RNA 4901	16 mm	24 mm	13 mm	9.9 KN	12.2 KN	22 000 r/min	26 000 r/min	0.017 g
RNA 6901	16 mm	24 mm	22 mm	16.1 KN	23.2 KN	22 000 r/min	26 000 r/min	0.031 g
RNA 4902.2RS	20 mm	28 mm	13 mm	9.13 KN	12 KN		9500 r/min	0.022 g
RNA 4903.2RS	22 mm	30 mm	13 mm	9.52 KN	12.9 KN		9000 r/min	0.023 g
RNA 4904.2RS	25 mm	37 mm	17 mm	19.4 KN	22.4 KN		7500 r/min	0.056 g
RNA 4902	20 mm	28 mm	13 mm	11.2 KN	15.3 KN	19 000 r/min	22 000 r/min	0.022 g
RNA 6902	20 mm	28 mm	23 mm	17.2 KN	27 KN	19 000 r/min	22 000 r/min	0.04 g
RNA 4903	22 mm	30 mm	13 mm	11.4 KN	16.3 KN	18 000 r/min	20 000 r/min	0.022 g
RNA 6903	22 mm	30 mm	23 mm	18.7 KN	30.5 KN	18 000 r/min	20 000 r/min	0.042 g
RNA 4904	25 mm	37 mm	17 mm	21.6 KN	28 KN	15 000 r/min	17 000 r/min	0.052 g
RNA 6904	25 mm	37 mm	30 mm	35.2 KN	53 KN	15 000 r/min	17 000 r/min	0.1 g
RNA 49/22	28 mm	39 mm	17 mm	23.3 KN	32 KN	14 000 r/min	15 000 r/min	0.05 g
RNA 69/22	28 mm	39 mm	30 mm	36.9 KN	57 KN	14 000 r/min	15 000 r/min	0.098 g
RNA 4905	30 mm	42 mm	17 mm	24.2 KN	34.5 KN	13 000 r/min	15 000 r/min	0.061 g
RNA 6905	30 mm	42 mm	30 mm	38 KN	62 KN	13 000 r/min	15 000 r/min	0.11 g
RNA 49/28	32 mm	45 mm	17 mm	25.1 KN	36.5 KN	12 000 r/min	14 000 r/min	0.073 g
RNA 69/28	32 mm	45 mm	30 mm	39.6 KN	65.5 KN	12 000 r/min	14 000 r/min	0.14 g
RNA 4906	35 mm	47 mm	17 mm	25.5 KN	39 KN	11 000 r/min	13 000 r/min	0.069 g
RNA 6906	35 mm	47 mm	30 mm	42.9 KN	75 KN	11 000 r/min	13 000 r/min	0.13 g
RNA 49/32	40 mm	52 mm	20 mm	30.8 KN	51 KN	10 000 r/min	11 000 r/min	0.089 g
RNA 69/32	40 mm	52 mm	36 mm	47.3 KN	90 KN	10 000 r/min	11 000 r/min	0.16 g
RNA 4907	42 mm	55 mm	20 mm	31.9 KN	54 KN	9 500 r/min	11 000 r/min	0.11 g
RNA 6907	42 mm	55 mm	36 mm	48.4 KN	93 KN	9 500 r/min	11 000 r/min	0.19 g
RNA 4908	48 mm	62 mm	22 mm	42.9 KN	71 KN	8 000 r/min	9 500 r/min	0.14 g
RNA 6908	48 mm	62 mm	40 mm	67.1 KN	125 KN	8 000 r/min	9 500 r/min	0.26 g
RNA 4909	52 mm	68 mm	22 mm	45.7 KN	78 KN	7 500 r/min	8 500 r/min	0.18 g
RNA 6909	52 mm	68 mm	40 mm	70.4 KN	137 KN	7 500 r/min	8 500 r/min	0.34 g
RNA 4910	58 mm	72 mm	22 mm	47.3 KN	85 KN	7 000 r/min	8 000 r/min	0.16 g
RNA 6910	58 mm	72 mm	40 mm	73.7 KN	150 KN	7 000 r/min	8 000 r/min	0.31 g
RNA 4911	63 mm	80 mm	25 mm	57.2 KN	106 KN	6 300 r/min	7 000 r/min	0.26 g
RNA 6911	63 mm	80 mm	45 mm	89.7 KN	190 KN	6 300 r/min	7 000 r/min	0.47 g
RNA 4912	68 mm	85 mm	25 mm	60.5 KN	114 KN	6 000 r/min	6 700 r/min	0.28 g
RNA 6912	68 mm	85 mm	45 mm	93.5 KN	204 KN	6 000 r/min	6 700 r/min	0.49 g
RNA 4906.2RS	35 mm	47 mm	17 mm	23.3 KN	32 KN		5 600 r/min	0.069 g
RNA 4907.2RS	42 mm	55 mm	20 mm	27 KN	43 KN		4 800 r/min	0.11 g
RNA 4908.2RS	48 mm	62 mm	22 mm	36.9 KN	58.5 KN		4 000 r/min	0.15 g
RNA 4909.2RS	52 mm	68 mm	22 mm	39.1 KN	64 KN		3 800 r/min	0.16 g
RNA 4910.2RS	58 mm	72 mm	22 mm	40.2 KN	69.5 KN		3 400 r/min	0.16 g

Product Type

Needle roller and cage assemblies(K)

VDO needle roller and cage assemblies are self-contained, ready-to-install bearings with high load carrying capacity and high stiffness. In applications where the shaft and housing bore can be used as raceways, they can be used to create bearing arrangements that require minimal radial space.

Drawn cup needle roller bearings(BK,HK)

VDO drawn cup needle roller bearings are needle roller bearings with a thin drawn outer ring. Its main feature is the low section height and high load bearing capacity. Mainly used for compact, inexpensive and bearing box bore can not be used as needle roller cage assembly raceway bearing configuration.

Needle roller bearings with machined rings(NK,NKS,RNA)

Solid sleeve needle roller bearings consist of one or two rings and a needle roller set with cage. Depending on the application, they can be classified as bearings with or without an inner ring. Therefore, solid sleeve needle roller bearings can meet the requirements of light weight, small space occupation and high power transmission.

Combined needle roller bearings(NKIA,NKIB)

The combination of radial needle roller bearings and thrust bearings means that these bearings can withstand the combined radial and axial loads, providing a very compact solution and high load-carrying capacity. Thrust bearings consist of a thrust cage assembly with a needle or cylindrical rollers or balls and a thrust washer. Needle and cylindrical rollers are held and guided by the thrust cage.

Needle Roller Bearing Installation Precautions

Needle roller bearing installation will be an auxiliary sleeve outer diameter coated with a thin layer of lubricant, set into the outer bearing ring so that the additional sleeve and bearing outer ring constitute an annular hole, and then the annular hole into the needle roller.
For needle roller bearings without an inner ring and outer ring, when installing, first apply a layer of grease on the rolling surface of the shaft.
For the needle roller bearing with stamping outer ring, the outer ring wall is very thin, do not use a hand hammer to knock when installing, should be used to press in. Because when the hand hammer strikes, the pressure is not uniform, and it is easy to make the outer ring of the needle roller bearing produce local deformation.

When you know how to install needle roller bearings, when you carry out this work, you will be able to do it well with a clear mind. When to use a sleeve, where to apply lubricant, can you use a hand hammer to knock, how to install a needle roller, etc., all this is no longer a problem after you understand the above-related introduction, you can easily handle it. Of course, practice is the most important thing, you can only really learn the skills from it if you do it.

Disassembly method

Knockout method: The knocking force is generally on the inner ring of the bearing. When the bearing is located at the end of the shaft, use a brass rod smaller than the inner diameter of the bearing against the end of the shaft and tap gently with a hand hammer to remove it.
Hot disassembly method: It is suitable for disassembling tight-fitting bearings. Firstly, heat the oil to about 100℃ and pour it on the bearing to be dismantled with an oil pot. After the bearing ring is heated and expanded, the bearing can be pulled out with a puller.
Push-press method: Use a press to push the bearing, and work smoothly and reliably without damaging the machine.
Pull-out method: Use a special pulling tool, when disassembling, just rotate the handle, and the bearing will be pulled out slowly. When dismantling the outer ring of the bearing, the two feet of the pulling tool should be bent and opened outward; when dismantling the inner ring of the bearing, the two feet of the pulling tool should be turned inward and stuck on the end face of the inner ring of the bearing.

Causes of damage

Because there are many problems in the use process that can lead to damage to needle roller bearings, such as prolonged use, improper lubrication, contaminants in the bearings, and improper disposal of equipment can lead to bearing damage.

Pollutants: fine dust invisible to the naked eye is the strongest killer of bearings, which can increase the wear, vibration, and noise of bearings.
Stamping: When using the equipment, the formation of strong stamping or direct hammering of the bearing is also an important factor leading to bearing damage.
Lubrication: When the bearings are used for a period of time directly after, the degree of lubrication of the bearings should be properly checked, if the machine failure is caused by bearing lubrication, it will delay your production, and work.

Needle roller bearing application areas

Needle roller bearing radial structure is compact, with the same inner diameter size and load capacity, needle roller bearing outer diameter is the smallest, so especially suitable for radial installation size-restricted support structure, mainly used in automobile starter motors, engines, steering systems, motorcycle engine, door closer, power tools, ABS/ESP, air conditioning compressor and other fields.
The automotive industry is the largest area of application for needle roller bearings. Needle roller bearings can obtain high bearing capacity and high stiffness in a small space, so they are widely used in the powertrain, chassis, air conditioning, and other parts of the car, and have a close relationship with the reliability, safety, and comfort of the whole car.

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Needle roller bearings

Content Directory

Bearing data

Product Type

Needle roller and cage assemblies(K)

Drawn cup needle roller bearings(BK,HK)

Needle roller bearings with machined rings(NK,NKS,RNA)

Combined needle roller bearings(NKIA,NKIB)

Needle Roller Bearing Installation Precautions

Disassembly method

Causes of damage

Needle roller bearing application areas

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