Nfr Series One Way Bearing Roller Type Freewheel

• Certification: ISO9001:2008
• Style: With Outer Ring
• Rows Number: Single
• Load Direction: Radial Bearing
• Material: Bearing Steel
• Model: Nfr
• Model NO.: NFR
• Type: Roller
• Weight: 0.1-68.0kg
• Inside Diameter: 80--130mm
• Torque: 20-34750nm
• Stock: Rich
• Seal Type: Seal
• OEM: Accept
• Export: Worldwide
• Delivery: in Stocks
• Transport Package: Single Box or as Your Requirements
• Specification: P6
• Trademark: SUMA or OEM
• Origin: Changzhou, Jiangsu, China
• HS Code: 84836000
• Production Capacity: 2000PCS/Month

Product Description

NFR Series One Way Bearing Roller Type Freewheel   

Description of NFR Series One Way Bearing Roller Type Freewheel

Type NFR is a bearing supported roller type freewheel without any sealing. Lubrication and sealing must be provided by the installation. Standard lubrication is oil. Size 8 to 20 units use steel on steel bearing support ROM the inner race. Above size 20, two 160...Series ball bearings are used, giving a higher overrunning speed capacity. A typical arrangement is shown overleaf.
The inner race is keyed to the shaft. The outer race has a positive n6 tolerance to give a press fit in a housing to H7. Additional side notches provide for positive torque transmission. The housing must be strong enough to not expand after assembly. 

Data Sheet of NFR Series One Way Backstopping Clutch

Model		NFR8-NFR130
Torque (N.m)		20-34750
Overrunning Speeds (rpm)	Inner Race	1000-250
	Outer Race	1000-3600
Dimension (mm)	Bore Size	8-130
	Outer Race Size	37-300
	Thickness	20-180
Weight (Kg)		0.1-68

Parameter of NFR Series One Way Backstopping Clutch

Type	Size		Overrunning speeds		Bearing										Weight
NFR (ANR-ANG)	d^H7 (mm)	TKN^1 (Nm )	Nimax^2) (min^-1)	Namax^3) (min^-1)		Dn6 (mm)	D2 (mm)	D4 (mm)	L (mm)	I (mm)	t (mm)	b^H11 (mm)	r (mm)	r1 (mm)	(kg)
	8	20	1000	1000	*	37	20	30	20		3	6	1	1.5	0.1
	12	20	1000	1000	*	37	20	30	20		3	6	1	1.5	0.1
	15	78	850	850	*	47	26	37	30		3.5	7	1.5	1.5	0.3
	20	188	650	650	*	62	37	52	36		3.5	8	2	2	0.6
	25	250	2100	3600	16008**	80	40	68	40	0.2	4	9	2.5	2	1.2
	30	500	1700	3200	16009**	90	45	75	48	0.2	5	12	2..5	2	1.8
	35	663	1550	3000	16010**	100	50	80	53	1.2	6	13	2.5	2.5	2.4
	40	1100	1150	2600	16011**	110	55	90	63	2.2	7	15	3	2.5	3.3
	45	1500	1000	2400	16012**	120	60	95	63	2.2	7	16	3	2.5	4.0
	50	2375	800	2150	16014**	130	70	110	80	2.7	8.5	17	3.5	3	5.7
	55	2550	750	2000	16015**	140	75	115	80	4.2	9	18	3.5	3	6.5
	60	4250	650	1900	16016**	150	80	125	95	3.2	9	18	3.5	3.5	8.9
	70	5875	550	1750	16018**	170	90	140	110	1.1	9	20	3.5	3.5	13.5
	80	10000	500	1600	16021**	190	105	160	125	0	9	20	4	3.5	19.0
	90	17250	450	1450	16024**	215	120	180	140	0.6	11.5	24	4	4	27.2
	100	79625	350	1250	16028**	260	140	210	150	2.6	14.5	28	4	4	44.5
	130	34750	250	1000	16032**	300	160	240	180	2	17.5	32	5	5	68.0

1) Tmax = 2 × TKN

2) Inner race overruns

3) Outer race overruns

Package