Spring-Loaded Adjustable-Arm Roller Chain and Belt Tensioners
Vertical Mount
Horizontal Mount
Replacement Spring
Tensioners take up slack and allow you to adjust tension on your roller chain or belt. A built-in spring allows the adjustment arm to apply continuous tension. They are for use with idler sprockets or pulleys.
For technical drawings and 3-D models, click on a part number.
Tensioners | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Mounting Plate | Replacement Springs | ||||||||||||
| Thread Size  | Tension Force, lbs. | Ht. | Wd. | Tension Arm Lg. | Deflection Angle | Overall Dp. | Material | Arm Rotation | Includes | Each | Each | ||
Vertical Mount | |||||||||||||
| 3/8"-16 | 45 | 5" | 3 1/2" | 5" | ±45° | 2 7/8" | Steel | 180° | Idler Shaft, Internal Spring | 000000000 | 0000000 | 00000000 | 000000 |
| 1/2"-13 | 45 | 5" | 3 1/2" | 5" | ±45° | 2 7/8" | Steel | 180° | Idler Shaft, Internal Spring | 00000000 | 000000 | 00000000 | 00000 |
| 5/8"-11 | 45 | 5" | 3 1/2" | 5" | ±45° | 2 7/8" | Steel | 180° | Idler Shaft, Internal Spring | 00000000 | 000000 | 00000000 | 00000 |
| 3/4"-10 | 45 | 5" | 3 1/2" | 5" | ±45° | 2 7/8" | Steel | 180° | Idler Shaft, Internal Spring | 00000000 | 000000 | 00000000 | 00000 |
Horizontal Mount | |||||||||||||
| 3/8"-16 | 45 | 3 1/8" | 4" | 5" | ±45° | 2 1/2" | Steel | 180° | Idler Shaft, Internal Spring | 000000000 | 000000 | 00000000 | 00000 |
| 1/2"-13 | 45 | 3 1/8" | 4" | 5" | ±45° | 2 1/2" | Steel | 180° | Idler Shaft, Internal Spring | 00000000 | 000000 | 00000000 | 00000 |
| 5/8"-11 | 45 | 3 1/8" | 4" | 5" | ±45° | 2 1/2" | Steel | 180° | Idler Shaft, Internal Spring | 00000000 | 000000 | 00000000 | 00000 |
| 3/4"-10 | 45 | 3 1/8" | 4" | 5" | ±45° | 2 1/2" | Steel | 180° | Idler Shaft, Internal Spring | 00000000 | 000000 | 00000000 | 00000 |