Mechanical Protectors  Torque Keeper

Slipping clutch and brake that use fine chemical fibers for the friction facings.

  • Longevity
  • Stable slip torque
  • Accurate torque repeatability
  • Lightweight
  • Compact
  • Wide torque range
  • Easy torque adjustment
  • Easy handling
  • No greasing required
  • Quick delivery available for shaft bore machined products

Model No. Designation

※No-coupling type

TFK35 - 1 - TH20JD1 - N25

Size

Number of belleville springs
1:1
2:2
1L: Weak spring

Shaft bore code

Set torque value
N・m

※ Coupling type

TFK25 - 1 C - TH20JD1 X CH20JD5 - N16

Size



Coupling type

Torque keeper side
Shaft bore code

Coupling side
Shaft bore code

Set torque value
N・m

Number of belleville springs
Details regarding shaft bore codes
Shaft bore tolerance Shaft Bore Diameter Keyway tolerance Set screw positioning
T H 20 J D1
C H 20 J D5
T:Torque keeper side
C: Coupling side
F:F7
G:G7
H:H7
J:JS7
P:P7
M:M7
N:N7
K:K7
R:R7
Shaft bore diameters are in 1mm units. J:New JIS Js9( Standard )
P:New JIS P9
F:Old JIS F7
E:Old JIS E9

[ Click to enlarge ]

Model No. Navigation

Selected model No.:

* Select each item in order from the left to make sure a valid model number is generated.

Series Size Spring strength Type Shaft Bore Diameter Shaft bore
tolerance
Keyway
tolerance
Set screw positioning Set torque
value
 TFK

Torque keeper side
0.6

1.1
  N・m
Coupling side

List of Model Numbers

※ Click the model No. for detailed information.

Set torque range
N・m
No-coupling type Coupling type
Range of Shaft Bore Diameters
mm
Model No. Bore Diameter Range
on Coupling Side mm
Model No.
0.6~1.1 9~14 TFK20-1L 10~26 TFK20-1LC
1.8~5.8 TFK20-1 TFK20-1C
4.0~11 TFK20-2 TFK20-2C
1.8~4.1 12~22 TFK25-1L 13~29 TFK25-1LC
4.0~16 TFK25-1 TFK25-1C
7.9~32 TFK25-2 TFK25-2C
5.9~11 19~25 TFK35-1L 15~35 TFK35-1LC
12~44 TFK35-1 TFK35-1C
21~89 TFK35-2 TFK35-2C
12~29 22~42 TFK50-1L 20~47 TFK50-1LC
29~125 TFK50-1 TFK50-1C
53~252 TFK50-2 TFK50-2C
30~70 32~64 TFK70-1L 21~63 TFK70-1LC
70~341 TFK70-1 TFK70-1C
134~650 TFK70-2 TFK70-2C