Product Info Clutch
A mechanical element that transmits and blocks rotation between two power transmission shafts.
There are two types of lineup: cam clutches (one-way clutches) and SR clutches (single rotation clutches). Cam clutches have a mechanical non-backlash structure with many cams arranged between the inner and outer race, and are available for three different uses: backstop, overrunning, and indexing.
With a simple lever operation, the SR clutch can give a full rotation or an integer number of rotations from the continuously rotating outer race (drive side) to inner race (load side) with precise timing.
table of contents
Clutch related information
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Selection
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Materials
What is a Cam Clutch (One-Way Clutch)?
When it comes to mechanical one-way clutches, Tsubaki's Cam Clutch comes to mind.
This is a mechanical non-backlash one-way clutch with an arrangement of multiple cams.
The lineup is divided into three categories: backstop, overrunning, and indexing.
What is an SR clutch (single rotation clutch)?
The SR clutch is a clutch that, with a simple lever operation, gives one or an integer number of revolutions from the continuously rotating outer race (drive side) to inner race (load side).
The mechanism in which the inner and outer race mesh enables highly reliable and accurate timing drive that is not possible with clutches using friction mechanisms, ratchet mechanisms, or pin and key mechanisms.
Clutch product list
Backstop
Also known as backstopping. The cam clutch continues to run freely while the machine is running, and engages when the machine suddenly reverses.
It is used to prevent the rotation axis from rotating in reverse.
The cam clutch continues to spin freely while the shaft is rotating forward, and engages when the shaft tries to rotate in the reverse direction to prevent it from rotating backward.
Example of preventing reverse rotation on a conveyor
| Cam clutch operation | |
|---|---|
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It is mainly used on inclined and vertical conveyors to prevent accidents caused by the conveyor reversing due to breakage of the drive chain, resulting in the load falling. |
BS Series
Model number BS~
This clutch is specifically designed to prevent reverse rotation of conveyors (for low speeds).
- -The BS series has a cam and roller structure.
- - Thorough dust prevention measures keep out dust.
- -High reliability due to the development and adoption of a dedicated cam.
- - Sizes BS30 to BS135 are pre-greased and Do not require lubrication.
- - A low-speed, idling type that can be attached to the final rotating shaft of a conveyor, pump, etc.
Shaft diameter range mm
Φ30～Φ450
Torque range N・m
294～686000
MG-R series
Model number MG□□R～
This is a clutch to prevent reverse rotation of conveyors (for medium speeds).
- -MG series cam clutch is equipped with an oil reservoir for easy maintenance.
- - For medium speed idling, can be attached to the intermediate shaft of a reducer, etc.
Shaft diameter range mm
Φ19～Φ250
Torque range N・m
314～176000
BR & BR-P series
Model number BR~ BR□□P~
During high speed rotation, the cam does not come into contact with the inner or outer race, so a long life can be expected.
- - This is a high-speed idling cam clutch that can be expected to have a long life because the cam does not come into contact with the inner or outer race during high-speed rotation.
- - For high speed rotation, low speed engagement and reverse prevention.
- - The BR type is a type that is attached directly to the motor shaft.
- - The BR-P type has a built-in bearing, so it can be used as is.
Shaft diameter range mm
Φ20～Φ240
Torque range N・m
306～62034
MA Series
Model number MA~
A cam that can withstand impact loads is used.
- - A cam with excellent impact load resistance is used, so it can firmly withstand impact loads.
- -This series was developed primarily to prevent the arms of pitching machines and tennis machines from vibrating.
- - No lubrication maintenance is required.
- All types in stock and ready for immediate delivery.
Shaft diameter range mm
Φ20～Φ30
Torque range N・m
176～510
BS-F Series
Model No. BS□□□F～
New design for tough environment, high torque, long life, compact and drop in structure
- ・Special double lip oil seal and multi temperature grease for wide temperature range
- ・Ingenious backstop mechanism
- ・The narrowest width with I-beam structure makes easy installation for customer's current layout
- ・Downsizing and high speed
Range of Shaft Diameters mm
Φ60～Φ465
Transmission Torque N・m
6760～980000
BR-HT Series
Model No. BR□□□HT～
BR-HT Cam Clutch is High Torque version of existing BR series.
- ・BR-HT Cam Clutch is High Torque version of existing BR series.
- ・Backstop applications for high-speed overrunning
- ・Greatly Increased Service Life
- ・Lift Off design, Non rollover design, Lower speed lift-off
- ・A more economical design
Range of Shaft Diameters mm
Φ20～Φ320
Transmission Torque N・m
105～366000
