NFS ASNU Cam Clutch Backstop Bearing

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Deep groove ball bearing

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Deep groove ball bearing

NFS ASNU Cam Clutch Backstop Bearing

Product information

Feature

Type ASNU is a roller type freewheel non-bearing 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.

Type	Size		Overrunning Speeds						Weight	Drag torque
ASNU NFS	d^H7	T_KN¹)	n_imax²)	n_amax³)	D_n6	L	b	t		T_R
	[mm]	[Nm]	[min-1]	[min-1]	[mm]	[mm]	[mm]	[mm]	[kg]	[Ncm]
	8	12	3300	5000	35	13	4	1.4	0.07	1.6
	12	12	3300	5000	35	13	4	1.4	0.06	1.6
	15	30	2400	3600	42	18	5	1.8	0.11	1.9
	17	49	2300	3400	47	19	5	2.3	0.15	1.9
	20	78	2100	3100	52	21	6	2.3	0.19	1.9
	25	125	1700	2600	62	24	8	2.8	0.38	5.6
	30	255	1400	2200	72	27	10	2.5	0.54	14
	35	383	1200	1900	80	31	12	3.5	0.74	16
	40	538	1100	1700	90	33	12	4.1	0.92	38
	45	780	1000	1600	100	36	14	4.6	1.31	43
	50	1013	850	1350	110	40	14	5.6	1.74	55
	60	1825	750	1050	130	46	18	5.5	2.77	110
	70	2300	600	950	150	51	20	6.9	4.16	140
	80	3275	550	850	170	58	20	7.5	6.09	180
	90	5325	500	750	190	64	20	8	8.2	230
	100	7250	450	680	215	73	24	8.5	12.6	380
	120	13500	370	550	260	86	28	10	22	650
	150	26625	300	460	320	108	32	12	42	1000
	200	44500	230	350	420	138	45	16	93	2000