Complete FreewheelsBM … R

Working time: From 8:00 a.m. to 10:00 p.m

Centimeter Equipment Trading Company Limited

Hotline: 0907030784

Deep groove ball bearing

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Deep groove ball bearing

Complete FreewheelsBM … R

Product information

INTRODUCTION

Features

Complete Freewheels BM … R are sealed roller

freewheels with ball bearings. They are supplied

oil-filled and ready for installation.

The freewheels BM … R are used as:

➧ Backstops

➧ Overrunning Clutches

➧ Indexing Freewheels

Nominal torques up to 57 500 Nm.

Bores up to 150 mm.

Application example

Complete Freewheel BM 40 R as an overrunning clutch on the shaft end of the main drive of a paper processing machine. The pulley is connected to an auxiliary drive. In normal operation (freewheeling operation) the inner ring overruns and the outer ring is at a standstill with the attached pulley. During set-up (driving operation) the machine is driven by an auxiliary drive via the pulley at a low speed.

Freewheel Size		Type	Nominal t orque M_N Nm	M Inner ring freewheels/ overruns min^-1	ax. speed Outer ring freewheels/ overruns min^-1	Bore d Standard mm	max. mm	A mm	D mm	F mm	L mm	M mm	N mm	O mm	P mm	S mm	Weight kg
BM	12	R	150	1 750	3 500	15	15	84	70	0,75	68	15,75	5	35	3,0	3,0	1,5
BM	15	R	230	1 650	3 300	20	20	94	80	0,75	70	15,75	5	37	3,0	3,0	2,0
BM	18	R	340	1 550	3 100	25	25	111	95	0,75	70	16,25	8	36	4,0	3,0	2,9
BM	20	R	420	1 450	2 900	30	30	121	105	0,75	77	20,25	8	35	4,0	2,5	3,8
BM	25	R	800	1 250	2 500	40	40	144	125	0,75	93	22,25	10	47	5,0	2,5	6,6
BM	28	R	1 200	1 100	2 200	45	45	155	135	0,75	95	23,25	12	47	5,0	4,0	7,8
BM	30	R	1 600	1 000	2 000	50	50	171	150	0,75	102	24,25	12	52	5,0	4,0	10,3
BM	35	R	1 800	900	1 800	55	55	182	160	0,75	110	24,25	14	60	5,5	4,0	12,5
BM	40	R	3 500	800	1 600	60	60	202	180	0,75	116	25,25	16	64	6,0	6,5	17,4
BM	45	R	7 100	750	1 500	70	70	218	195	1,25	130	24,75	20	78	7,5	8,5	22,4
BM	50	R	7 500	700	1 400	75	75	227	205	1,25	132	26,75	20	76	7,5	8,5	24,2
BM	52	R	9 300	650	1 300	80	80	237	215	1,75	150	33,75	25	79	9,0	8,5	31,1
BM	55	R	12 500	550	1 100	90	90	267	245	1,75	170	35,25	25	96	9,0	6,5	45,6
BM	60	R	14 500	500	1 000		105	314	290	1,75	206	40,25	28	122	10,0	6,5	78,2
BM	70	R	22 500	425	850		120	350	320	1,25	215	44,75	28	123	10,0	9,0	93,4
BM	80	R	25 000	375	750		130	380	350	1,75	224	46,25	32	128	11,0	8,5	116,8
BM	90	R	33 500	350	700		140	400	370	2,75	236	49,25	32	132	11,0	7,5	136,7
BM	95	R	35 000	300	600		150	420	390	2,75	249	53,25	36	137	12,0	6,5	159,3
BM 100		R	57 500	250	500		150	450	410	3,75	276	56,25	36	156	12,0	11,5	198,4

The maximum transmissible torque is 2 times the specified nominal torque. See page 14 for determination of selection torque.

Keyway according to DIN 6885, page 1 • Keyway width tolerance •JS10

Mounting
The customer attachment part is connected via
a keyway connection with the outer ring. The
customer must provide the key required for as-
sembling the attachment part.
The tolerance of the shaft must be ISO h6 or j6
and the tolerance of the pilot diameter D of the
attachment part must be ISO H7 or J7.

Example for ordering
Freewheel size BM 20, standard type and 30 mm
bore:
• BM 20 R, d = 30 mm