Complete Freewheels BA … R|Complete Freewheels BC … R|Suma

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Complete Freewheels BA … R and BC … R

Complete Freewheels BA … R and BC … R with lever arm are sealed roller freewheels with ball bearings.

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Product Detail

Features
Complete Freewheels BA … R and BC … R with lever arm are sealed roller freewheels with ball bearings.

The freewheels BA … R have an end cover and are fitted to shaft ends. The oil filling is carried out after the freewheel has been installed to the end of the shaft.

The freewheels BC … R are supplied oil-filled and are arranged on through shafts or shaft ends.

The freewheels BA … R and BC … R are used as:

➧Backstops

for applications with low to medium speed freewheeling operation.

Nominal torques up to 57 500 Nm.

Bores up to 150 mm.

Application example

Complete Freewheel BA 90 R as a backstop on the end of a transport roller. The backdriving torque is supported by the lever arm with holding pin on the base. If the holding pin is removed, the shaft can be turned in both directions.

Sizes of Complete Freewheels BA … R and BC … R

Different types of Complete Freewheels BA … R and BC … R

Freewheel Size				Type	Nominal Torque M_N Nm	Max. speed Inner ring freewheels min^-1	Bore d Standard max. mm mm		A mm	C mm	D mm	E mm	H mm	K mm	L mm	N mm	O mm	P mm	Q mm	R mm	S for Screw	Weight kg
BA	12	BC	12	R	150	1 750	15	15	71	50	71	8	53	4,5	68	9	91	11,5	42	45	M 6	2
BA	15	BC	15	R	230	1 650	20	20	81	60	81	8	62	4,5	70	9	93	13,5	50	50	M 6	3
BA	18	BC	18	R	340	1 550	25	25	96	70	96	8	73	4,5	70	9	96	15,5	60	60	M 10	4
BA	20	BC	20	R	420	1 450	30	30	110	90	106	8	80	2,5	77	11	104	19,5	65	70	M 10	5
BA	25	BC	25	R	800	1 250	40	40	126	100	126	8	90	2,5	93	11	125	19,5	75	80	M 12	8
BA	28	BC	28	R	1 200	1 100	45	45	140	110	136	10	105	3,5	95	14	129	24,5	85	90	M 12	9
BA	30	BC	30	R	1 600	1 000	50	50	155	120	151	10	120	3,5	102	16	140	27,5	95	100	M 16	12
BA	35	BC	35	R	1 800	900	55	55	170	130	161	10	140	3,5	110	19	151	33,5	112	110	M 16	15
BA	40	BC	40	R	3 500	800	60	60	190	150	181	12	160	5,5	116	22	160	37,5	130	120	M 16	20
BA	45	BC	45	R	7 100	750	70	70	210	160	196	14	175	7,0	130	26	176	41,5	140	130	M 16	25
BA	50	BC	50	R	7 500	700	75	75	220	180	206	14	185	7,0	132	26	178	41,5	150	140	M 16	30
BA	52	BC	52	R	9 300	650	80	80	230	190	216	14	200	4,5	150	26	208	41,5	160	150	M 20	35
BA	55	BC	55	R	12 500	550	90	90	255	200	246	15	210	3,5	170	29	228	49,5	170	160	M 20	50
BA	60	BC	60	R	14 500	500		105	295	220	291	20	250	8,5	206	35	273	60,0	200	190	M 24	91
BA	70	BC	70	R	22 500	425		120	335	260	321	25	280	14,0	215	39	291	65,0	225	210	M 24	115
BA	80	BC	80	R	25 000	375		130	360	280	351	30	280	18,5	224	39	302	65,0	225	220	M 24	150
BA	90	BC	90	R	33 500	350		140	385	300	371	35	310	22,5	236	55	314	70,0	250	240	M 30	180
BA	95	BC	95	R	35 000	300		150	400	350	391	40	310	27,5	249	55	337	70,0	250	250	M 30	225
BA 100		BC 100		R	57 500	250		150	420	380	411	45	345	31,5	276	60	372	80,0	280	270	M 30	260

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.

Mounting
The backdriving torque is supported by the lever arm with holding pin. The holding pin e ngages in a slot or bore in the frame of the machine. It must have 0,5 to 2 mm play in the axial and radial directions.
If the holding pin is removed, the shaft can be turned in both directions.
The tolerance of the shaft must be ISO h6 or j6.

The freewheels BC … R are supplied oil-filled and ready for installation.
In the case of freewheels BA … R, the inner ring must be secured axially with a retainer plate. Prior to commissioning, the freewheel must be filled with oil of the specified quality.

Example for ordering
Freewheel size BA 30, standard type and 50 mm bore:
• BA 30 R, d = 50 mm
When ordering, please also specify the freewheeling direction of the inner ring when viewed in direction X: • counterclockwise free or