Chain tensioner・Idler wheels
- 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 | ||
|---|---|---|
|
CT-TCS type Swing type tensioner with idler sprocket. ＊Go to the Drive Chain Accessory page. |
Details |
|
CT-ETS type Linear type tensioner with idler sprocket. ＊Go to the Drive Chain Accessory page. |
Details |
|
CT-TA type Linear type tensioner with plastic shoe. ＊Go to the Drive Chain Accessory page. |
Details |
|
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
- 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
Practical Example
Takes up slack on long center distances.
Functions as a center idler on drives with multiple shafts.
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 | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | |
| RS35 | ● | ● | ● | ● | ● | ● | ● | ● | |||||||||
| RS40 | ● | ● | ● | ● | ● | ● | ● | ||||||||||
| RS50 | ● | ● | ● | ● | ● | ● | |||||||||||
| RS60 | ● | ● | ● | ● | |||||||||||||
| RS80 | ● | ● | ● | ● | ● | ||||||||||||
| 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 | 18 | 54.85 | 60 | 4.4 | FRB-RS35-18TQ-N DXF・3DCAD・ PDF |
FRB-RS35-18TQ-K DXF・3DCAD・ PDF |
FRL-RS35-18TQ-N DXF・3DCAD・ PDF |
FRL-RS35-18TQ-K DXF・3DCAD・ PDF |
| 19 | 57.87 | 63 | FRB-RS35-19TQ-N DXF・3DCAD・ PDF |
FRB-RS35-19TQ-K DXF・3DCAD・ PDF |
FRL-RS35-19TQ-N DXF・3DCAD・ PDF |
FRL-RS35-19TQ-K DXF・3DCAD・ PDF |
||
| 20 | 60.89 | 66 | FRB-RS35-20TQ-N DXF・3DCAD・ PDF |
FRB-RS35-20TQ-K DXF・3DCAD・ PDF |
FRL-RS35-20TQ-N DXF・3DCAD・ PDF |
FRL-RS35-20TQ-K DXF・3DCAD・ PDF |
||
| 21 | 63.91 | 69 | FRB-RS35-21TQ-N DXF・3DCAD・ PDF |
FRB-RS35-21TQ-K DXF・3DCAD・ PDF |
FRL-RS35-21TQ-N DXF・3DCAD・ PDF |
FRL-RS35-21TQ-K DXF・3DCAD・ PDF |
||
| 22 | 66.93 | 72 | FRB-RS35-22TQ-N DXF・3DCAD・ PDF |
FRB-RS35-22TQ-K DXF・3DCAD・ PDF |
FRL-RS35-22TQ-N DXF・3DCAD・ PDF |
FRL-RS35-22TQ-K DXF・3DCAD・ PDF |
||
| 23 | 69.95 | 75 | FRB-RS35-23TQ-N DXF・3DCAD・ PDF |
FRB-RS35-23TQ-K DXF・3DCAD・ PDF |
FRL-RS35-23TQ-N DXF・3DCAD・ PDF |
FRL-RS35-23TQ-K DXF・3DCAD・ PDF |
||
| 24 | 72.97 | 78 | FRB-RS35-24TQ-N DXF・3DCAD・ PDF |
FRB-RS35-24TQ-K DXF・3DCAD・ PDF |
FRL-RS35-24TQ-N DXF・3DCAD・ PDF |
FRL-RS35-24TQ-K DXF・3DCAD・ PDF |
||
| 25 | 76.00 | 81 | FRB-RS35-25TQ-N DXF・3DCAD・ PDF |
FRB-RS35-25TQ-K DXF・3DCAD・ PDF |
FRL-RS35-25TQ-N DXF・3DCAD・ PDF |
FRL-RS35-25TQ-K DXF・3DCAD・ PDF |
||
| RS40 | 14 | 57.07 | 63 | 7.3 | FRB-RS40-14TQ-N DXF・3DCAD・ PDF |
FRB-RS40-14TQ-K DXF・3DCAD・ PDF |
FRL-RS40-14TQ-N DXF・3DCAD・ PDF |
FRL-RS40-14TQ-K DXF・3DCAD・ PDF |
| 15 | 61.08 | 67 | FRB-RS40-15TQ-N DXF・3DCAD・ PDF |
FRB-RS40-15TQ-K DXF・3DCAD・ PDF |
FRL-RS40-15TQ-N DXF・3DCAD・ PDF |
FRL-RS40-15TQ-K DXF・3DCAD・ PDF |
||
| 16 | 65.10 | 71 | FRB-RS40-16TQ-N DXF・3DCAD・ PDF |
FRB-RS40-16TQ-K DXF・3DCAD・ PDF |
FRL-RS40-16TQ-N DXF・3DCAD・ PDF |
FRL-RS40-16TQ-K DXF・3DCAD・ PDF |
||
| 17 | 69.12 | 75 | FRB-RS40-17TQ-N DXF・3DCAD・ PDF |
FRB-RS40-17TQ-K DXF・3DCAD・ PDF |
FRL-RS40-17TQ-N DXF・3DCAD・ PDF |
FRL-RS40-17TQ-K DXF・3DCAD・ PDF |
||
| 18 | 73.14 | 78 | FRB-RS40-18TQ-N DXF・3DCAD・ PDF |
FRB-RS40-18TQ-K DXF・3DCAD・ PDF |
FRL-RS40-18TQ-N DXF・3DCAD・ PDF |
FRL-RS40-18TQ-K DXF・3DCAD・ PDF |
||
| 19 | 77.16 | 83 | FRB-RS40-19TQ-N DXF・3DCAD・ PDF |
FRB-RS40-19TQ-K DXF・3DCAD・ PDF |
FRL-RS40-19TQ-N DXF・3DCAD・ PDF |
FRL-RS40-19TQ-K DXF・3DCAD・ PDF |
||
| 20 | 81.18 | 88 | FRB-RS40-20TQ-N DXF・3DCAD・ PDF |
FRB-RS40-20TQ-K DXF・3DCAD・ PDF |
FRL-RS40-20TQ-N DXF・3DCAD・ PDF |
FRL-RS40-20TQ-K DXF・3DCAD・ PDF |
||
| RS50 | 12 | 61.34 | 68 | 8.9 | FRB-RS50-12TQ-N DXF・3DCAD・ PDF |
FRB-RS50-12TQ-K DXF・3DCAD・ PDF |
FRL-RS50-12TQ-N DXF・3DCAD・ PDF |
FRL-RS50-12TQ-K DXF・3DCAD・ PDF |
| 13 | 66.33 | 73 | FRB-RS50-13TQ-N DXF・3DCAD・ PDF |
FRB-RS50-13TQ-K DXF・3DCAD・ PDF |
FRL-RS50-13TQ-N DXF・3DCAD・ PDF |
FRL-RS50-13TQ-K DXF・3DCAD・ PDF |
||
| 14 | 71.34 | 79 | FRB-RS50-14TQ-N DXF・3DCAD・ PDF |
FRB-RS50-14TQ-K DXF・3DCAD・ PDF |
FRL-RS50-14TQ-N DXF・3DCAD・ PDF |
FRL-RS50-14TQ-K DXF・3DCAD・ PDF |
||
| 15 | 76.35 | 84 | FRB-RS50-15TQ-N DXF・3DCAD・ PDF |
FRB-RS50-15TQ-K DXF・3DCAD・ PDF |
FRL-RS50-15TQ-N DXF・3DCAD・ PDF |
FRL-RS50-15TQ-K DXF・3DCAD・ PDF |
||
| 16 | 81.37 | 89 | FRB-RS50-16TQ-N DXF・3DCAD・ PDF |
FRB-RS50-16TQ-K DXF・3DCAD・ PDF |
FRL-RS50-16TQ-N DXF・3DCAD・ PDF |
FRL-RS50-16TQ-K DXF・3DCAD・ PDF |
||
| 17 | 86.39 | 94 | FRB-RS50-17TQ-N DXF・3DCAD・ PDF |
FRB-RS50-17TQ-K DXF・3DCAD・ PDF |
FRL-RS50-17TQ-N DXF・3DCAD・ PDF |
FRL-RS50-17TQ-K DXF・3DCAD・ PDF |
||
| RS60 | 11 | 67.62 | 76 | 11.9 | FRB-RS60-11TQ-N DXF・3DCAD・ PDF |
FRB-RS60-11TQ-K DXF・3DCAD・ PDF |
FRL-RS60-11TQ-N DXF・3DCAD・ PDF |
FRL-RS60-11TQ-K DXF・3DCAD・ PDF |
| 12 | 73.60 | 82 | FRB-RS60-12TQ-N DXF・3DCAD・ PDF |
FRB-RS60-12TQ-K DXF・3DCAD・ PDF |
FRL-RS60-12TQ-N DXF・3DCAD・ PDF |
FRL-RS60-12TQ-K DXF・3DCAD・ PDF |
||
| 13 | 79.60 | 89 | FRB-RS60-13TQ-N DXF・3DCAD・ PDF |
FRB-RS60-13TQ-K DXF・3DCAD・ PDF |
FRL-RS60-13TQ-N DXF・3DCAD・ PDF |
FRL-RS60-13TQ-K DXF・3DCAD・ PDF |
||
| 14 | 85.61 | 95 | FRB-RS60-14TQ-N DXF・3DCAD・ PDF |
FRB-RS60-14TQ-K DXF・3DCAD・ PDF |
FRL-RS60-14TQ-N DXF・3DCAD・ PDF |
FRL-RS60-14TQ-K DXF・3DCAD・ PDF |
||
| RS80 | 9 | 74.26 | 85 | 15.0 | FRB-RS80-9TQ-N DXF・3DCAD・ PDF |
FRB-RS80-9TQ-K DXF・3DCAD・ PDF |
FRL-RS80-9TQ-N DXF・3DCAD・ PDF |
FRL-RS80-9TQ-K DXF・3DCAD・ PDF |
| 10 | 82.20 | 93 | FRB-RS80-10TQ-N DXF・3DCAD・ PDF |
FRB-RS80-10TQ-K DXF・3DCAD・ PDF |
FRL-RS80-10TQ-N DXF・3DCAD・ PDF |
FRL-RS80-10TQ-K DXF・3DCAD・ PDF |
||
| 11 | 90.16 | 101 | FRB-RS80-11TQ-N DXF・3DCAD・ PDF |
FRB-RS80-11TQ-K DXF・3DCAD・ PDF |
FRL-RS80-11TQ-N DXF・3DCAD・ PDF |
FRL-RS80-11TQ-K DXF・3DCAD・ PDF |
||
| 12 | 98.14 | 108 | FRB-RS80-12TQ-N DXF・3DCAD・ PDF |
FRB-RS80-12TQ-K DXF・3DCAD・ PDF |
FRL-RS80-12TQ-N DXF・3DCAD・ PDF |
FRL-RS80-12TQ-K DXF・3DCAD・ PDF |
||
| 13 | 106.14 | 118 | FRB-RS80-13TQ-N DXF・3DCAD・ PDF |
FRB-RS80-13TQ-K DXF・3DCAD・ PDF |
FRL-RS80-13TQ-N DXF・3DCAD・ PDF |
FRL-RS80-13TQ-K DXF・3DCAD・ PDF |
||
catalog P178
Options - Idler Bolt Set -
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 )
