Chain tensioner・Idler wheels

Product photo
  • Chain Tensioners/Idler Sprockets are essential for chain drive
  • Excessive chain sag can cause vibration/noise and prevent the chain from properly engaging the sprocket, which prevents the chain from operating smoothly.
  • Tsubaki Chain Tensioners adjust chain slackness and continues proper chain transmission.
  • FR idler sprockets provide stable rotation by using bearing units with hubs.

Chain tensioner

Product Types/Features
TCS

CT-TCS type

Swing type tensioner with idler sprocket.

*Go to the Drive Chain Accessory page.

Details
ETS

CT-ETS type

Linear type tensioner with idler sprocket.

*Go to the Drive Chain Accessory page.

Details
TA

CT-TA type

Linear type tensioner with plastic shoe.

*Go to the Drive Chain Accessory page.

Details
TH

CT-TH type

Linear type tensioner with easier, more convenient handling (multiple idler sprockets to choose from).

*Go to the Drive Chain Accessory page.

Details

FR Idler Sprockets

FR Idler Sprockets
  • Bearing units with hubs provide stable rotation.
  • We offer a wide variety of idler sprockets to choose from. Can be used as an idler of CT-TH Type Chain Tensioners.
  • *ball bearing type and oilless bush type

Application Examples

Takes up slack on long center distances.

Takes up slack on long center distances.

Functions as a center idler on drives with multiple shafts.

Functions as a center idler on drives with multiple shafts.

When chain wrap angle is insufficient

When chain wrap angle is insufficient

Model No. examples

FR B - RS40 - 15T - N






Size

Number of teeth

Surface treatment
Bearing Series
B:Ball bearing package
L:Lube-free Bush Series
N:No plating
K:Electroless nickel phosphorus plating
FR Idler Sprockets

Products, dimensions list

Applicable chain number and number of teeth (All hardened teeth specifications).

Chain No. Number of teeth
910111213141516171819202122232425
RS35
RS40
RS50
RS60
RS80
FR Idler Sprockets
All hardened teeth specifications.
Chain Number
of teeth
Pitch circle
dia.
Dp
mm
Outer
Diameter
Do
mm
Tooth
Width
t
mm
Model No. ・DXF drawings / 3D CAD data ・PDF drawing
Ball bearing package Lube-free Bush Series
No plating Electroless nickel
phosphorus plating
No plating Electroless nickel
phosphorus plating
RS35 1854.8560 4.4 FRB-RS35-18TQ-N
DXF・3DCADPDF
FRB-RS35-18TQ-K
DXF・3DCADPDF
FRL-RS35-18TQ-N
DXF・3DCADPDF
FRL-RS35-18TQ-K
DXF・3DCADPDF
1957.8763 FRB-RS35-19TQ-N
DXF・3DCADPDF
FRB-RS35-19TQ-K
DXF・3DCADPDF
FRL-RS35-19TQ-N
DXF・3DCADPDF
FRL-RS35-19TQ-K
DXF・3DCADPDF
2060.8966 FRB-RS35-20TQ-N
DXF・3DCADPDF
FRB-RS35-20TQ-K
DXF・3DCADPDF
FRL-RS35-20TQ-N
DXF・3DCADPDF
FRL-RS35-20TQ-K
DXF・3DCADPDF
2163.9169 FRB-RS35-21TQ-N
DXF・3DCADPDF
FRB-RS35-21TQ-K
DXF・3DCADPDF
FRL-RS35-21TQ-N
DXF・3DCADPDF
FRL-RS35-21TQ-K
DXF・3DCADPDF
2266.9372 FRB-RS35-22TQ-N
DXF・3DCADPDF
FRB-RS35-22TQ-K
DXF・3DCADPDF
FRL-RS35-22TQ-N
DXF・3DCADPDF
FRL-RS35-22TQ-K
DXF・3DCADPDF
2369.9575 FRB-RS35-23TQ-N
DXF・3DCADPDF
FRB-RS35-23TQ-K
DXF・3DCADPDF
FRL-RS35-23TQ-N
DXF・3DCADPDF
FRL-RS35-23TQ-K
DXF・3DCADPDF
2472.9778 FRB-RS35-24TQ-N
DXF・3DCADPDF
FRB-RS35-24TQ-K
DXF・3DCADPDF
FRL-RS35-24TQ-N
DXF・3DCADPDF
FRL-RS35-24TQ-K
DXF・3DCADPDF
2576.0081 FRB-RS35-25TQ-N
DXF・3DCADPDF
FRB-RS35-25TQ-K
DXF・3DCADPDF
FRL-RS35-25TQ-N
DXF・3DCADPDF
FRL-RS35-25TQ-K
DXF・3DCADPDF
RS40 1457.0763 7.3 FRB-RS40-14TQ-N
DXF・3DCADPDF
FRB-RS40-14TQ-K
DXF・3DCADPDF
FRL-RS40-14TQ-N
DXF・3DCADPDF
FRL-RS40-14TQ-K
DXF・3DCADPDF
1561.0867 FRB-RS40-15TQ-N
DXF・3DCADPDF
FRB-RS40-15TQ-K
DXF・3DCADPDF
FRL-RS40-15TQ-N
DXF・3DCADPDF
FRL-RS40-15TQ-K
DXF・3DCADPDF
1665.1071 FRB-RS40-16TQ-N
DXF・3DCADPDF
FRB-RS40-16TQ-K
DXF・3DCADPDF
FRL-RS40-16TQ-N
DXF・3DCADPDF
FRL-RS40-16TQ-K
DXF・3DCADPDF
1769.1275 FRB-RS40-17TQ-N
DXF・3DCADPDF
FRB-RS40-17TQ-K
DXF・3DCADPDF
FRL-RS40-17TQ-N
DXF・3DCADPDF
FRL-RS40-17TQ-K
DXF・3DCADPDF
1873.1478 FRB-RS40-18TQ-N
DXF・3DCADPDF
FRB-RS40-18TQ-K
DXF・3DCADPDF
FRL-RS40-18TQ-N
DXF・3DCADPDF
FRL-RS40-18TQ-K
DXF・3DCADPDF
1977.1683 FRB-RS40-19TQ-N
DXF・3DCADPDF
FRB-RS40-19TQ-K
DXF・3DCADPDF
FRL-RS40-19TQ-N
DXF・3DCADPDF
FRL-RS40-19TQ-K
DXF・3DCADPDF
2081.1888 FRB-RS40-20TQ-N
DXF・3DCADPDF
FRB-RS40-20TQ-K
DXF・3DCADPDF
FRL-RS40-20TQ-N
DXF・3DCADPDF
FRL-RS40-20TQ-K
DXF・3DCADPDF
RS50 1261.3468 8.9 FRB-RS50-12TQ-N
DXF・3DCADPDF
FRB-RS50-12TQ-K
DXF・3DCADPDF
FRL-RS50-12TQ-N
DXF・3DCADPDF
FRL-RS50-12TQ-K
DXF・3DCADPDF
1366.3373 FRB-RS50-13TQ-N
DXF・3DCADPDF
FRB-RS50-13TQ-K
DXF・3DCADPDF
FRL-RS50-13TQ-N
DXF・3DCADPDF
FRL-RS50-13TQ-K
DXF・3DCADPDF
1471.3479 FRB-RS50-14TQ-N
DXF・3DCADPDF
FRB-RS50-14TQ-K
DXF・3DCADPDF
FRL-RS50-14TQ-N
DXF・3DCADPDF
FRL-RS50-14TQ-K
DXF・3DCADPDF
1576.3584 FRB-RS50-15TQ-N
DXF・3DCADPDF
FRB-RS50-15TQ-K
DXF・3DCADPDF
FRL-RS50-15TQ-N
DXF・3DCADPDF
FRL-RS50-15TQ-K
DXF・3DCADPDF
1681.3789 FRB-RS50-16TQ-N
DXF・3DCADPDF
FRB-RS50-16TQ-K
DXF・3DCADPDF
FRL-RS50-16TQ-N
DXF・3DCADPDF
FRL-RS50-16TQ-K
DXF・3DCADPDF
1786.3994 FRB-RS50-17TQ-N
DXF・3DCADPDF
FRB-RS50-17TQ-K
DXF・3DCADPDF
FRL-RS50-17TQ-N
DXF・3DCADPDF
FRL-RS50-17TQ-K
DXF・3DCADPDF
RS60 1167.6276 11.9 FRB-RS60-11TQ-N
DXF・3DCADPDF
FRB-RS60-11TQ-K
DXF・3DCADPDF
FRL-RS60-11TQ-N
DXF・3DCADPDF
FRL-RS60-11TQ-K
DXF・3DCADPDF
1273.6082 FRB-RS60-12TQ-N
DXF・3DCADPDF
FRB-RS60-12TQ-K
DXF・3DCADPDF
FRL-RS60-12TQ-N
DXF・3DCADPDF
FRL-RS60-12TQ-K
DXF・3DCADPDF
1379.6089 FRB-RS60-13TQ-N
DXF・3DCADPDF
FRB-RS60-13TQ-K
DXF・3DCADPDF
FRL-RS60-13TQ-N
DXF・3DCADPDF
FRL-RS60-13TQ-K
DXF・3DCADPDF
1485.6195 FRB-RS60-14TQ-N
DXF・3DCADPDF
FRB-RS60-14TQ-K
DXF・3DCADPDF
FRL-RS60-14TQ-N
DXF・3DCADPDF
FRL-RS60-14TQ-K
DXF・3DCADPDF
RS80 974.2685 15.0 FRB-RS80-9TQ-N
DXF・3DCADPDF
FRB-RS80-9TQ-K
DXF・3DCADPDF
FRL-RS80-9TQ-N
DXF・3DCADPDF
FRL-RS80-9TQ-K
DXF・3DCADPDF
1082.2093 FRB-RS80-10TQ-N
DXF・3DCADPDF
FRB-RS80-10TQ-K
DXF・3DCADPDF
FRL-RS80-10TQ-N
DXF・3DCADPDF
FRL-RS80-10TQ-K
DXF・3DCADPDF
1190.16101 FRB-RS80-11TQ-N
DXF・3DCADPDF
FRB-RS80-11TQ-K
DXF・3DCADPDF
FRL-RS80-11TQ-N
DXF・3DCADPDF
FRL-RS80-11TQ-K
DXF・3DCADPDF
1298.14108 FRB-RS80-12TQ-N
DXF・3DCADPDF
FRB-RS80-12TQ-K
DXF・3DCADPDF
FRL-RS80-12TQ-N
DXF・3DCADPDF
FRL-RS80-12TQ-K
DXF・3DCADPDF
13106.14118 FRB-RS80-13TQ-N
DXF・3DCADPDF
FRB-RS80-13TQ-K
DXF・3DCADPDF
FRL-RS80-13TQ-N
DXF・3DCADPDF
FRL-RS80-13TQ-K
DXF・3DCADPDF

catalog P178

Options - Idler Bolt Set -

Idler bolt set models

Idler bolt set models
Model No. Size L (mm)
FR-PS45 M12 45
FR-PS55 55
FR-PS70 70

Accessories

  • ・One (1) bolt, one (1) nut, three (3) flat washers
  • ・One (1) spring washer (Surface treatment :trivalent chromate )

Installation example of Idler bolts (Ball bearing package )

Installation example of Idler bolts