Complete FreewheelsBD … R

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Centimeter Equipment Trading Company Limited

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Deep groove ball bearing

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Deep groove ball bearing

Complete FreewheelsBD … R

Product information

INTRODUCTION

Features

Complete Freewheels BD … R are sealed

freewheels with rollers and ball bearings. They

are supplied oil-filled.

The freewheels BD … R are used as:

➧ Backstops

➧ Overrunning Clutches

➧ Indexing Freewheels

Nominal torques up to 57 500 Nm.

Bores up to 150 mm.

Application example

Complete Freewheels BD 28 R as overrunning clutches in the roller conveyor of a continuous heating furnace system. The steel billets must run through the furnace at increasing speed. In order to achieve this, overrunning clutches with sprockets on both sides are arranged on the drive side of the transport rollers. The driven sprocket has in each case two teeth less than the driving sprocket. Therefor the speed increases from roller to roller. The length of the steel billet covers several rollers, all running at differ ent speeds. The freewheels allow the slower rollers to adjust to the speed of the billet by overrunning their drive.

Freewheel Size		Type	Nominal torque M_N Nm	M Inner ring freewheels/ overruns min^-1	ax. Speed Outer ring freewheels/ overruns min^-1	Bore d Standard max. mm mm		B mm	D mm	F mm	G**	H mm	K mm	L mm	R mm	S mm	T mm	Z**	Weight kg
BD	12	R	150	1 750	3 500	15	15	60,5	71	0,75	M 5	25	3	68	45	1,5	56	4	1,5
BD	15	R	230	1 650	3 300	20	20	62,5	81	0,75	M 5	25	3	70	50	1,5	65	4	2,0
BD	18	R	340	1 550	3 100	25	25	62,5	96	0,75	M 5	25	3	70	60	1,5	80	6	2,9
BD	20	R	420	1 450	2 900	30	30	65,5	106	0,75	M 6	26	5	77	70	0,5	90	6	3,8
BD	25	R	800	1 250	2 500	40	40	81,5	126	0,75	M 6	30	5	93	80	0,5	105	6	6,6
BD	28	R	1 200	1 100	2 200	45	45	81,5	136	0,75	M 8	30	6	95	90	1,5	115	6	7,8
BD	30	R	1 600	1 000	2 000	50	50	88,5	151	0,75	M 8	36	6	102	100	1,5	130	6	10,3
BD	35	R	1 800	900	1 800	55	55	96,5	161	0,75	M 8	35	6	110	110	1,5	140	6	12,5
BD	40	R	3 500	800	1 600	60	60	102,5	181	0,75	M 10	37	6	116	120	3,5	160	6	17,4
BD	45	R	7 100	750	1 500	70	70	115,5	196	1,25	M 12	38	6	130	130	5,0	170	8	22,4
BD	50	R	7 500	700	1 400	75	75	117,5	206	1,25	M 12	39	6	132	140	5,0	180	8	24,2
BD	52	R	9 300	650	1 300	80	80	130,5	216	1,75	M 14	44	8	150	150	4,5	190	8	31,1
BD	55	R	12 500	550	1 100	90	90	146,5	246	1,75	M 14	48	10	170	160	2,5	215	8	45,6
BD	60	R	14 500	500	1 000		105	182,5	291	1,75	M 14	55	10	206	190	2,5	250	8	78,2
BD	70	R	22 500	425	850		120	192,5	321	1,25	M 16	58	10	215	210	5,0	280	8	93,4
BD	80	R	25 000	375	750		130	200,5	351	1,75	M 16	60	10	224	220	4,5	310	8	116,8
BD	90	R	33 500	350	700		140	210,5	371	2,75	M 16	68	10	236	240	3,5	330	10	136,7
BD	95	R	35 000	300	600		150	223,5	391	2,75	M 16	79	10	249	250	3,5	345	10	159,3
BD 100		R	57 500	250	500		150	248,5	411	3,75	M 20	79	10	276	270	6,5	365	10	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 • Tolerance of keyway width JS10.
** Z = Number of tapped holes G on pitch circle T.

Mounting
The customer attachment part is centered on
the diameter R and then bolted on to the face.
The pilot on the covers is particularly suitable
for attaching smaller and narrower parts (spro-
ckets, gear wheels etc.).
The customer must provide fastening screws of
the necessary length in order to mount the at-
tachment part.
The tolerance of the shaft must be ISO h6 or j6
and the tolerance of the pilot diameter R of the
attachment part must be ISO H7 or J7.

Example for ordering
Freewheel size BD 40, standard type with bore
60 mm:
• BD 40 R, d = 60 mm