Heavy Duty Germany Flanged Needle Roller Bearing NA4918

Heavy Duty Germany Flanged Needle Roller Bearing NA4918

Needle roller bearings with cylindrical roller bearings,relative to its diameter, roller is fine and long. This is called needle roller. Although it has a small section, the load bearing capacity of bearing still had high, with thin and long needle bearing roller, so the radial structure is compact, compered with the other bearings,the size of the inner diameter and load capacity is the same.and its has the minimum size of outside diameter, especially for supporting structure of radial installation size restricted.

earing No.	Boundary dimensions(mm)				Basic load ratings(N)		Limiting speeds(rpm)	Mass(g)
	d	Fw	D	B	Cr	Cor	Oil
NA4900	10	14	22	13	8006	9000	23700	21.00
NA4901	12	16	24	13	5047	6352	20000	25.10
NA4902	15	20	28	13	6447	9053	18800	32.00
NA4903	17	22	30	13	7010	10010	17000	32.80
NA4904	20	25	37	17	11912	16594	16200	70.20
NA49/22	22	28	39	17	12996	19175	14360	76.00
NA4905	25	30	42	17	13452	20475	13832	76.00
NA49/28	28	32	45	17	13900	20100	13832	90.70
NA49/32	32	40	52	20	19000	32600	11134	150.00
NA4907	35	42	55	20	19800	41500	11134	151.00
NA4908	40	48	62	22	31036	63873	8567	123.00
NA4909	45	50	68	22	37000	96500	8052	260.00
NA4910	50	58	72	22	41000	72000	7526	264.00
NA4911	55	63	80	25	50600	96580	7156	386.00
NA4912	60	68	85	25	52800	110500	6022	412.00
NA4913	65	72	90	25	57500	110500	6022	435.00
NA4914	70	80	100	30	79000	154000	5111	712.00
NA4915	75	85	105	30	82000	158000	5111	765.00
NA4916	80	90	110	30	81000	170500	5111	870.00
NA4917	85	100	120	35	111000	237000	4600	1250.00
NA4918	90	105	125	35	114000	250000	4400	1312.00
NA4919	95	110	130	35	116000	260000	4200	1371.00
NA4920	100	115	140	40	120000	2740000	4000	1900.00
NA4922	110	125	150	40	132000	290000	3700	2070.00

 

 

Model Number	HK series, BK series, HK…RS series, HK…2RS series, BK…RS series, F series, FH series, MF series,
	HF series, HFL series, K series, K…ZW series, KZK series, KBK series, NK series, NKS series, RNA49 series,
	RNA69 series, NKI series, NKIS series, NA49 series, NA69 series, NA48 series, NAO series, RNAO series,
	RNA49…RS series, RNA49… 2RS series, RNAV series, NAV series, RPNA series, PNA series, IR series,
	LR series, AXK series, AXW series, RSTO series, STO series, RNA2200 series, RNA2200…2RS series,
	NA2200 series, NATR series, NATV series, NUTR series, PWTR series, NNTR series, KR series, KRE series,
	KRV series, NUKR series, NUKRE series, PWKR series, PWKRE series.
Type	needle roller bearing.
Number of Row	single row, double row, multi row.
Material	supreme chrome steel 100Cr6.
Cage Material	steel, brass, nylon.