Deep groove ball bearing

Backstop clutch AL ALP

Product information

INTRODUCTION

Backstop clutch AL ALP

Feature

Types AL, ALP are roller type freewheels. These units are part of the 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 AL, ALP are used with standard 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 AL 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 AL, ALP are identical except that type ALP 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.

Type	Size	Overrunning speed		Number							Weight	Drag torque
AL ALP	d^H7	n_imax²⁾	n_amax³⁾	D_h7	D₂	z	L¹	L⁴⁾	B	t₁		T_R
	[mm]	[min-1]	[min-1]	[mm]	[mm]		[mm]	[mm]	[mm]	[mm]	[kg]	[Ncm]
	12	4000	7200	62	20	3	42	20.3	27	2.4	0.5	3.4
	15	3600	6500	68	25	3	52	30.3	34.1	2.9	0.8	4.1
	20	2700	5600	75	30	4	57	34.3	39.1	3.5	1	8
	25	2100	4500	90	40	6	60	37.3	42.1	4.1	1.5	14
	30	1700	4100	100	45	6	68	44.3	49.1	4.1	2.2	23
	35	1550	3800	110	50	6	74	48.3	54.1	4.7	3	60
	40	1150	3400	125	55	6	86	56.3	62.1	4.9	4.6	72
	45	1000	3200	130	60	8	86	56.3	62.1	5.5	4.7	140
	50	800	2800	150	70	8	92	63.3	69.1	5.5	7.2	180
	55	750	2650	160	75	8	104	67	73.1	6.2	8.6	190
	60	650	2450	170	80	10	114	78	84	6.8	10.5	240
	70	550	2150	190	90	10	134	95	103	7.4	13.5	320
	80	500	1900	210	105	10	144	100	108	8.5	18.2	330
	90	450	1700	230	120	10	158	115	125	8.7	28.5	650
	100	350	1450	270	140	10	182	120	131	9.9	42.5	830
	120	250	1250	310	160	12	202	140	152	11.1	65	1080
	150	200	980	400	200	12	246	180	196	12.3	138	1240
	200	150	750	520	260	18	326	240	265	15	315	3800
	250	120	620	610	320	20	396	300	330	15	512	6100
ALM	25	2100	2800	90	40	6	60	37.3	42.1	4.1	1.7	22
	30	1700	2500	100	45	6	68	44.3	49.1	4.1	2.5	37
	35	1550	2400	110	50	6	74	48.3	54.1	4.7	3.2	66

NOTES

1) T _max= 2 × T _KN
» Refer to Selection page 10 to 13
2) Inner race overruns, values without lip seals
3) Outer race overruns
Keyway to DIN 6885.1
4) The dimension L includes up to size 50 the each
0.25 mm thick paper seals to be located on both faces
» Refer to mounting and maintenance instructions
page 16 to 19

MOUNTING EXAMPLE