Sealed Heavy Duty Needle Roller Bearing With or Without Inner Ring

Product Description

MBY® Needle roller bearings are roller bearings with cylindrical rollers that are small in diameter but long in length (L/D≥2.5). MBY® Needle roller bearings have a high radial load carrying capacity. And since they have a low cross section, needle roller bearings are extremely suitable for bearing applications where the radial space is limited.

MBY® offers a wide range of needle roller bearings including needle roller & cage assemblies, drawn cup and solid needle roller bearings. They can also be specified as cam followers and track roller bearings by applications. The major application markets include automotive, consumer product and general industrial goods.

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Shaft Diameter	Bearing Designation		Mass Approx	Boundary Dimensions					Basic Load Rating		Limiting Speed
	Sealed on one Side	Sealed on both sides		d	Fw	D	C	B	Cr Dynamic	Cor Static	Oil
mm			g	mm					n		rpm
Without inner ring
10	NA4900 RS	NA4900.2 RS	24.5	10	14	22	13	14	4560	4660	13000
12	NA4901 RS	NA4901.2 RS	27.5	12	16	24	13	14	4950	5800	12000
15	NA4902 RS	NA4902.2 RS	37	15	20	28	13	14	5980	9500	10000
17	NA4903 RS	NA4903.2 RS	40	17	22	30	13	14	6050	10100	9000
20	NA4904 RS	NA4904.2 RS	80	20	25	37	17	18	14900	17500	7500
25	NA4905 RS	NA4905.2 RS	89.5	25	30	42	17	18	16300	21500	6500
30	NA4906 RS	NA4906.2 RS	104	30	35	47	17	18	20050	24900	5500
35	NA4907 RS	NA4907.2 RS	175	35	42	55	20	21	22500	37000	4800
40	NA4908 RS	NA4908.2 RS	252	40	48	62	22	23	33050	50900	4200
45	NA4909 RS	NA4909.2 RS	290	45	52	68	22	23	34800	56800	3900
50	NA4910 RS	NA4910.2 RS	295	50	58	72	22	23	37800	61500	3500
14	RNA4900 RS	RNA4900.2 RS	16	0	14	22	13	0	4560	4660	13000
16	RNA4901 RS	RNA4901.2 RS	18	0	16	24	13	0	4950	5800	12000
20	RNA4902 RS	RNA4902.2 RS	21.5	0	20	28	13	0	5980	9500	10000
22	RNA4903 RS	RNA4903.2 RS	23	0	22	30	13	0	6050	10100	9000
25	RNA4904 RS	RNA4904.2 RS	56	0	25	37	17	0	14900	17500	7500
30	RNA4905 RS	RNA4905.2 RS	60	0	30	42	17	0	16300	21500	6500
35	RNA4906 RS	RNA4906.2 RS	69	0	35	47	17	0	20050	24900	5500
42	RNA4907 RS	RNA4907.2 RS	107	0	42	55	20	0	22500	37000	4800
48	RNA4908 RS	RNA4908.2 RS	154	0	48	62	22	0	33050	50900	4200
52	RNA4909 RS	RNA4909.2 RS	157	0	52	68	22	0	34800	56800	3900
58	RNA4910 RS	RNA4910.2 RS	160	0	58	72	22	0	37800	61500	3500