ONE-WAY CLUTCHES|TOK inc.

ONE-WAY CLUTCHES

These are machine element components that lock up in one direction and allow free movement in the opposite direction.

ONE-WAY CLUTCHES MECHANISM

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ASSEMBLY DRAWING

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APPLICATION EXAMPLE

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All-in-one one-way clutch

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TCM series

All-in-one one-way clutch_TCM series

Features
・ Incorporating a standard clutch element into the housing according to customer requirements
・ Clutch element with slide bearing

Specifications
<Clutch element>
・ Minimum lock torque: 0.08 N・m
・ Maximum lock torque: 0.98 N・m
・ Shaft diameter tolerance range: 0.025mm to 0.036mm
<Housing>
・ Applicable outer diameter dimensions: more than φ10mm
・ Applicable width dimensions: more than 8mm

Benefits
➢ Can be used by press fitting into various shaped housings such as gears, pulleys, levers and cams.
➢ Because the tolerance of the shaft is large, the cost can be reduced.
➢ Shaft diameters from φ3 mm to φ10 mm are available.
➢ Long life due to no grease

Applications
Multi-function copier | String winding mechanism | Printer | Bill validator |
Inspection device adjustment knob | Ticket machine | Cash machine | Card transport | Label printer


Single one-way clutch element /
One-way clutch element with customized housing

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TCK series

Single one-way clutch element /
One-way clutch element with customized housing
_TCK Series

Features
・ Incorporating a standard clutch element into the housing according to customer requirements
・ Clutch element with slide bearing
・ Clutch element can be provided without a housing
・ Thin design

Specifications
<Clutch element>
・ Lock torque: 0.59 N・m
・ Shaft diameter: φ6mm (Tolerance: 0 / -0.03mm)
<Housing>
・ Applicable outer diameter dimensions: more than φ14mm
・ Applicable width dimensions: more than 7.3mm

Benefits
 Can be used by press-fitting into various shaped housings such as gears, pulleys, levers, and cams.
 Space-saving due to miniaturization
 Because the tolerance of the shaft is large, the cost can be reduced.
 Long life due to no grease
 Can be sold with a housing or separately

Applications
Multi-function copier | String winding mechanism | Printer | Bill validator |
Inspection device adjustment knob | Ticket machine | Cash machine | Card transport | Label printer

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TCJ series

Single one-way clutch element /
One-way clutch element with customized housing
_TCJ series

Features
Incorporating a standard clutch element into the housing according to customer requirements
Clutch element with slide bearing
Clutch element can be sold without a housing
For high-temperature use

Specifications
<Clutch element>
Lock torque: 0.78 N・m
Shaft diameter:φ6mm ( Tolerance: 0 / -0.03mm)
<Housing>
Applicable outer diameter dimensions: more than φ14mm
Applicable width dimensions: more than 8mm

Benefits
Can be used by press fitting into various shaped housings such as gears, pulleys, levers and cams.
Not necessary to prepare a separate bearing (sintered bearing is built-in)
Because the tolerance of the shaft is large, the cost can be reduced.
High torque despite its small size
Can be used in a high temperature environment of 140°C.
Can be sold with or without a housing

Applications
Multi-function copier | tring winding mechanism | Printer | Bill validator |
Inspection device adjustment knob | Ticket machine | Cash machine | Card transport | Label printer


Customized housing examples

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Customized housing examples

Customized housing examples

Features
 We design customized one-way clutches as your requests.
 They can be used by press-fitting into various shaped housings such as gears, timing pulleys, cams, and levers.

Benefits
Ordinary cases when using by incorporating it into the housing by yourselves:

➢ The clutch element does not fit in the housing.
➢ The clutch element falls out of the housing.
➢ Backlash increase due to loose-fitting.
➢ Idling torque increases due to misalignment between the housing and the clutch element.
➢ Durability decreases due to eccentricity.

If we design the housing and incorporate it into the clutch element,
you do not have to worry about these issues.

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