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AV60 AV70 One Way Roller Type Freewheel Backstop Clutch

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Changzhou Suma Precision Machinery Co., Ltd

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AV60 AV70 One Way Roller Type Freewheel Backstop Clutch

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Brand Name :	SUMA
Model Number :	AV60 AV70
Certification :	ISO SGS
Price :	USD120-USD150 PER PIECE
Payment Terms :	L/C, D/A, D/P, T/T, Western Union, Paypal
Supply Ability :	1000PCS Per Month
Delivery Time :	7-10 Days

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AV60 AV70 One Way Roller Type Freewheel Backstop Clutch

AV60 AV70 One Way Roller Type Freewheel Backstop Clutch

Features of Roller Type Freewheel Backstop Clutch

Type AV is a roller type freewheel. It is self-contained, centered by plain bearings for low rotational speeds , and sealed using shield protected metallic labyrinth seals.

In order to prevent the reverse or smooth phenomenon when the inclined belt conveyor is parked under load, after the calculation of the braking torque, a freewheel backstop or holdback device is added depending on the specific situation. Roller backstop, suitable for the head drum, is driven by a reducer, the power is large, the diameter of the drum is large, and the belt conveyor with the reducer above ZQ65 is more suitable for upward conveying, and the inclination angle is less than or equal to 18 degrees. Conveyor, which has the advantages of rapid backstop and small reversing distance, is the preferred backstop for large and medium-sized inclination conveyors. Widely used in reducer matching, coking plant and transportation machinery, conveyors, hoists, electric drums and other mechanical equipment that require backstop requirements.

Unit is delivered grease lubricated, ready to install in a horizontal or vertical position. Primarily used as a backstop, the torque capacity is high for a minimum space requirement. This design is suitable for use in difficult environments. A bolt, secured to a fixed part of the machine and passing

through the slot in the torque arm, provides the rotational stop. Radial clearance on this bolt

should be equal to 1-3 % of the slot width.

The torque arm and the bearings must not be prestressed. The roller design makes the AV type ideal for light indexing applications.
Dimensions of Roller Type Freewheel Backstop Clutch

Type	Size	TKN1)	Overrunning speed											Weight	Drag torque
AV	dH7	TKN1)	nimax	D	D2	L 1	L	B	F	bB11	N	E	f	Weight	TR
	[mm]	[Nm]	[min-1]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[mm]	[kg]	[Ncm]
	20	265	450	83	42	35	12	40	90	15	35	5	0.8	1.3	18
	25	265	450	83	42	35	12	40	90	15	35	5	0.8	1.3	18
	30	1200	320	118	60	54	15	40	110	15	35	8	1	3.5	130
	35	1200	320	118	60	54	15	40	110	15	35	8	1	3.4	130
	40	1200	320	118	60	54	15	40	110	15	35	8	1	3.3	130
	45	2150	280	155	90	54	20	80	140	18	47	10	1	5.5	240
	50	2150	280	155	90	54	20	80	140	18	47	10	1	5.4	240
	55	2150	280	155	90	54	20	80	140	18	47	10	1	5.3	240
	60	2150	280	155	90	54	20	80	140	18	47	10	1	5.2	240
	70	2150	280	155	90	54	20	80	140	18	47	10	1	5	240
	80	2900	200	190	110	64	20	80	155	20	40	10	1.5	8.7	360
	90*	7125	150	260	160	90	25	120	220	–	–	–	3	24.5	360
	100*	7125	150	260	160	90	25	120	220	–	–	–	3	23.5	360
	110*	7125	150	260	160	90	25	120	220	–	–	–	3	22.5	360
	120*	11000	130	300	180	110	30	140	260	–	–	–	3	42	600

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