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One Way Clutch Bearing Tfs20 - One Way Sprag Clutch Bearing

Type ASNU is a roller type freewheel nonbearing supported. Bearings are required to support axial and radial loads. Lubrication and sealing must

also be provided by the installation. Nominal outer diameter is the same as a series 63...Ball bearing
A typical arrangement is to install this type alongside a bearing within the same location tolerances, as shown on the following page. The inner

race is keyed to the shaft.
The outer race has positive n6 tolerance, to give a press fit in a H7 housing. Additional side notches in the outer race provide for positive torque

transmission.
If the housing is to K6 tolerance, use of the notches is not necessary, but the housing must be strong enough to not expand after assembly. This

design can accept an axial misalignment of inner and uter race of ± S/2.

	Max.Overrunning Speed				keyway	A	B	C	D	E	F	G
Model	Torque Capacity	Inner Race	Outer Race	Bore Size	keyway	A	B	C	D	E	F	G	H	Weight
	N.m	R/min	r/min	H7										g
TFS12	18	4,500	2,300	12	4x1.8	13	35	30	18	0.6	0.3	4	1.4	68
TFS15	28	3,500	1,800	15	5x1.2	18	42	36	22	0.8	0.3	5	1.8	120
TFS17	50	3,200	1,600	17	5x1.2	19	47	38	22	1.2	0.8	5	2.3	150
TFS20	84	2,500	1,300	20	6x1.6	21	52	45	27	1.2	0.8	6	2.3	220
TFS25	128	2,000	1,000	25	8x2.0	24	62	52	35	1.2	0.8	8	2.8	360
TFS30	200	1,600	800	30	8x2.0	27	72	62	40	1.8	1.0	10	2.5	530
TFS35	475	1,400	700	35	10x2.4	31	80	70	48	1.8	1.0	12	3.5	790

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