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GFRN Backstop Clutch One Way Clutch

Types GFR,GFRN are roller type freewheels from Suma one way clutch bearing maker. These units are part of the Stieber modular system. They are bearing supported, using two 160.. series bearings, and require oil lubrication. These units may be used in designs providing oil lubrication and sealing as on the example overleaf. The bearings must not be axially stressed.

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Product Detail

GFRN Backstop Clutch One Way Clutch

Feature

Types GFR,GFRN are roller type freewheels from Suma one way clutch bearing maker. These units are part of the Stieber modular system. They are bearing supported, using two 160.. series bearings, and require oil lubrication. These units may be used in designs providing oil lubrication and sealing as on the example overleaf. The bearings must not be axially stressed.

Typically, types GFR,GFRN are used with the F series covers that are designed to transmit torque, and provide oil lubrication and sealing. Usually these covers are used in pairs according to combinations shown on the following pages. The outer race of the GFR model is plain to receive and center any component bored to H7 tolerance.

Torque is transmitted by bolts through the cover plate in this case. Types GFR, GFRN are identical except that type GFRN has a keyway on the outside diameter to transmit the torque. Two paper seals are delivered with each unit to be placed between the outer race and cover plates.

Different types of GFRN Backstop Clutch One Way Clutch

Type	Size		Overrunning speeds					Weight
GFR GFRN	d^H7	T_KN¹⁾	n_imax²⁾	n_amax³⁾	D_h7	L ₁	L
	[mm]	[Nm]	[min-1]	[min-1]	[mm]	[mm]	[mm]	[kg]
	12*	55	4000	7200	62	42	20	0.5
	15	125	3600	6500	68	52	28	0.8
	20	181	2700	5600	75	57	34	1
	25	288	2100	4500	90	60	35	1.5
	30	500	1700	4100	100	68	43	2.2
	35	725	1550	3800	110	74	45	3
	40	1025	1150	3400	125	86	53	4.6
	45	1125	1000	3200	130	86	53	4.7
	50	2125	800	2800	150	94	64	7.2
	55	2625	750	2650	160	104	66	8.6
	60	3500	650	2450	170	114	78	10.5
	70	5750	550	2150	190	134	95	13.5
	80	8500	500	1900	210	144	100	18.2
	90	14500	450	1700	230	158	115	28.5
	100	20000	350	1450	270	182	120	42.5
	130	31250	250	1250	310	212	152	65
	150	70000	200	980	400	246	180	138