Needle Roller Bearing without Inner Ring NA49 2rs

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无挡边滚针轴承

Needle Roller Bearings without Inner Ring

NA49 2RS series 系列

轴径 shatr Diameter	RNA49..RS 单面密封型号 Designation With sealed On one side	RNA49..2RS 单面密封型号 Designation With sealed On one side	重量 mass	尺寸Dimensions				基本额定载荷 Basic Load Ratings		极限转速 Limiting speed grease rpm
轴径 shatr Diameter	RNA49..RS 单面密封型号 Designation With sealed On one side	RNA49..2RS 单面密封型号 Designation With sealed On one side	重量 mass	FW	D	C	r	动Cr Dynamic KN	静Cr Static KN	极限转速 Limiting speed grease rpm
14	RNA4900RS	RNA 4900.2RS	16	14	22	13	0.3	6.8	6.9	13000
16	RNA4901RS	RNA 4901.2RS	18	16	24	13	0.3	7.6	8.3	12000
20	RNA4902RS	RNA 4902.2RS	21.5	20	28	13	0.3	8.6	10.3	10000
22	RNA4903RS	RNA 4903.2RS	23	22	30	13	0.3	8.8	11.0	9000
25	RNA4904RS	RNA 4904.2RS	56	25	37	17	0.3	17.3	19.9	7500
30	RNA4905RS	RNA 4905.2RS	60	30	42	17	0.3	19.3	24.2	6500
35	RNA4906RS	RNA 4906.2RS	69	35	47	17	0.3	21.1	28.5	5500
42	RNA4907RS	RNA 4907.2RS	107	42	55	20	0.6	26.5	39.5	4800
48	RNA4908RS	RNA 4908.2RS	154	48	62	22	0.6	36.0	53.0	4200
52	RNA4909RS	RNA 4909.2RS	157	52	68	22	0.6	38.0	59.0	3900
58	RNA4910RS	RNA 4910.2RS	160	58	72	22	0.6	40.0	64.0	3500

说明：

1、表中所列基本额定载荷、极限转速和重量，仅供选择参考用。

2、油润滑时，极限转速为表列数值增加30%，带密封的情况除外。

Note:
1. These load, speed and mass is reference of choice only.
2.With an effective oil supply,the limiting speed can be increased by about 30%,except for sealed roller followers.