Belt Tension Gauges
Belts, and
Round Belts
B-Section V-Belts,
and Timing Belts
Keep an eye on belt tension to minimize vibration, noise, and slippage.
Gauge for V-belts and gauges for V-belts, flat belts, and round belts are pocket-sized for measurements on the go.
Wide-Range Belt Tension Gauges
Measure belt tension up to 2,200 lbs. Position the sensor above your belt and pluck the belt like a guitar string to create vibration. Then, read the tension measurement on the display.
Tension Rating | Batteries | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| For Belt Type | For Max. Belt Wd. | Pounds | Hertz | Newtons | Power Source | Size | Number Required | Included | Includes | Each | |
| Flat, Round, V | Any | 1-2,200 | 10-400 | 1-9,990 | Battery | AA | 4 | Yes | Tuning Fork, Plastic Case | 000000 | 000000000 |
Adjustable-Screw Roller Chain and Belt Tensioners
Tensioners take up slack and allow you to adjust tension on your roller chain or belt. Precisely apply tension in a straight line by moving the adjustment screw. They are for use with idler sprockets or pulleys.
For technical drawings and 3-D models, click on a part number.
Mounting Plate | |||||||
|---|---|---|---|---|---|---|---|
| For Idler ID | Ht. | Wd. | Overall Dp. | Material | Includes | Each | |
Vertical/Horizontal Mount | |||||||
| 1/4" | 5 7/8" | 1 1/2" | 3 1/8" | Steel | Idler Shaft | 00000000 | 0000000 |
| 3/8" | 5 7/8" | 1 1/2" | 3 1/8" | Steel | Idler Shaft | 00000000 | 000000 |
| 1/2" | 5 7/8" | 1 1/2" | 3 1/8" | Steel | Idler Shaft | 000000 | 000000 |
| 5/8" | 9" | 2" | 4 5/16" | Steel | Idler Shaft | 00000000 | 000000 |
| 3/4" | 9" | 2" | 4 5/16" | Steel | Idler Shaft | 00000000 | 000000 |
| 7/8" | 9" | 2" | 4 5/16" | Steel | Idler Shaft | 000000 | 000000 |
| 1 1/8" | 13" | 3" | 6" | Steel | Idler Shaft | 000000 | 000000 |
Heavy Duty Spring-Loaded Adjustable-Arm Belt and Roller Chain Tensioners
Maintain correct drive tension to ensure smooth operation for maximum power and a long service life. Designed for use on large belt and chain drives, tensioners are spring loaded to provide constant tension and automatic adjustments for pulsating loads. Adjust the arm to control tension in a 360° arc. Idler shaft (sold separately) is required.
For technical drawings and 3-D models, click on a part number.
Overall | Thread | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Lg. | Lg. | Dia. | Size | Lg. | Edge Type | Fabrication | Hardness Rating | Hardness | Includes | Each | |
Inch with Shaft Collar—1215 Carbon Steel | ||||||||||||
| 1" | 1 1/2" | 3 3/8" | 1 1/2" | 3/4"-16 | 7/8" | Chamfered | Hardened | Very Hard | Rockwell C58 | Grease Fitting | 000000 | 000000 |
| 1" | 2 1/2" | 4 3/8" | 1 1/2" | 3/4"-16 | 7/8" | Chamfered | Hardened | Very Hard | Rockwell C58 | Grease Fitting | 000000 | 00000 |
| 1" | 3 1/2" | 5 3/8" | 1 1/2" | 3/4"-16 | 7/8" | Chamfered | Hardened | Very Hard | Rockwell C58 | Grease Fitting | 000000 | 00000 |
Heavy Duty Spring-Loaded Belt and Roller Chain Tensioners
with Idler Shaft
(Sold Separately)
Designed for large belt and chain drives, these tensioners maintain correct drive tension for smooth operation, maximum power, and a long service life. They're spring loaded, which keeps constant tension on a belt or chain and automatically adjusts for changes in loads. An idler shaft (sold separately) is required.
For technical drawings and 3-D models, click on a part number.
Overall | Mounting Plate | Mounting Holes | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Tension Force, lbs. | For Idler ID | Travel Ht. | Ht. | Dp. | Wd. | Ht. | Material | No. of | Lg. | Mounting Fasteners Included | Each | |
| 84 | 1 1/2" | 3" | 18 5/16" | 3 3/16" | 6" | 7" | Cast Iron | 4 | 1 7/8" | Yes | 0000000 | 0000000 |
with Idler Shaft
(Sold Separately)
Overall | Thread | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dia. | Lg. | Lg. | Dia. | Size | Lg. | Edge Type | Fabrication | Hardness Rating | Hardness | Includes | Each | |
Inch with Shaft Collar—1215 Carbon Steel | ||||||||||||
| 1 1/2" | 3 1/4" | 5 11/16" | 2 1/4" | 1"-14 | 1 5/16" | Chamfered | Hardened | Very Hard | Rockwell C58 | Grease Fitting | 00000000 | 000000 |
| 1 1/2" | 5 1/4" | 7 11/16" | 2 1/4" | 1"-14 | 1 5/16" | Chamfered | Hardened | Very Hard | Rockwell C58 | Grease Fitting | 00000000 | 00000 |
Spring-Loaded Adjustable-Arm Roller Chain and Belt Tensioners
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 |
Adjustable-Arm Roller Chain and Belt Tensioners
Mounting Plate | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Thread Size | Ht. | Wd. | Tension Arm Lg. | Overall Dp. | Material | Arm Rotation | Includes | Each | |
Vertical Mount | |||||||||
| 3/8"-16 | 3 1/4" | 2" | 2 1/2" | 1 3/8" | Steel | 360° | Idler Shaft | 00000000 | 0000000 |
| 1/2"-13 | 5" | 3 1/2" | 3 13/16" | 2" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 5/8"-11 | 5" | 3 1/2" | 3 13/16" | 2" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 3/4"-10 | 5" | 3 1/2" | 3 13/16" | 2" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
Horizontal Mount | |||||||||
| 3/8"-16 | 2 5/16" | 2 1/4" | 2 1/2" | 2" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 1/2"-13 | 3 1/4" | 4" | 3 13/16" | 3 3/8" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 5/8"-11 | 3 1/4" | 4" | 3 13/16" | 3 3/8" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 3/4"-10 | 3 1/8" | 4" | 4" | 3 3/8" | Steel | 360° | Idler Shaft | 00000000 | 000000 |
| 1"-14 | 7 3/8" | 7 1/2" | 6 1/2" | 11 1/4" | Cast Iron | 360° | Idler Shaft | 000000000 | 000000 |
Load-Rated No-Sew Buckles for Webbing
Attach webbing to these buckles without sewing.
Cam buckles tighten faster than ratchet buckles. Pull the strap through to tighten; lift the cam to release. Both ends have a cam buckle for fast tightening.
Ratchet buckles tighten incrementally for maximum tension. They have a hook on one end so you can secure them to an anchor point. Thread webbing through the other end.
Warning: Never use for lifting applications.
For technical drawings and 3-D models, click on a part number.
Load-Rated Sew-On Buckles for Webbing
Permanently sew webbing onto the buckles to create high-tension tie down straps.
Feed-through buckles are easy to cinch. Lift the buckle to release.
Flip-lock buckles, also known as over-center buckles, tighten by flipping the lever-style buckle.
Cam buckles tighten fast. Pull the strap through to tighten; lift the cam to release.
Ratchet buckles tighten incrementally for maximum tension.
Stainless steel fittings are more corrosion resistant than zinc-plated steel fittings.
Warning: Never use for lifting applications.
For technical drawings and 3-D models, click on a part number.
| For Max. Webbing Wd. | Capacity, lbs. | Wd. | Lg. | Each | |
Feed Through | |||||
|---|---|---|---|---|---|
Stainless Steel | |||||
| 1" | 500 | 1 3/8" | 2 7/16" | 0000000 | 000000 |
Flip Lock | |||||
Zinc-Plated Steel | |||||
| 1" | 330 | 1 1/2" | 3 3/4" | 0000000 | 0000 |
| 2" | 500 | 2 3/4" | 5 1/8" | 0000000 | 0000 |
Stainless Steel | |||||
| 2" | 500 | 2 11/16" | 7 1/8" | 0000000 | 00000 |
Cam | |||||
Zinc-Plated Steel | |||||
| 1" | 400 | 1 1/2" | 2 1/2" | 0000000 | 00000 |
| 2" | 830 | 2 7/16" | 2 15/16" | 0000000 | 00000 |
Stainless Steel | |||||
| 1" | 100 | 1 3/16" | 1 3/4" | 0000000 | 00000 |
Ratchet | |||||
Zinc-Plated Steel | |||||
| 1" | 500 | 2 1/16" | 4 7/16" | 000000 | 00000 |
| 2" | 3,670 | 4 3/16" | 7 5/8" | 0000000 | 00000 |
Stainless Steel | |||||
| 1" | 350 | 2" | 4 1/2" | 0000000 | 00000 |
| 1 1/2" | 1,320 | 3 1/16" | 5 7/8" | 0000000 | 00000 |
| 2" | 1,670 | 3 1/2" | 6 9/16" | 0000000 | 00000 |
Load-Rated Slip-On Buckles for Webbing
The slotted bar on these buckles allows you to attach an eye easily. Squeeze to release quickly with one hand.
Warning: Never use for lifting applications.
| For Max. Webbing Wd. | Capacity, lbs. | Wd. | Lg. | Color | Pkg. Qty. | Pkg. | |
Squeeze Release | |||||||
|---|---|---|---|---|---|---|---|
Plastic | |||||||
| 1" | 130 | 1 5/16" | 2 5/8" | Black | 10 | 0000000 | 000000 |
Light Duty No-Sew Buckles for Webbing
These buckles have a bar that grips webbing tightly without sewing. Use them for light duty strapping applications, such as on backpacks and bags.
Feed-through buckles are easy to cinch. Lift the buckle to release.
Squeeze-release buckles quickly release with one hand. Style C buckles have wings so it's easier to open with gloved hands.
Cam buckles tighten fast. Pull the strap through to tighten; lift the cam to release.
Warning: Never use for lifting applications.
For technical drawings and 3-D models, click on a part number.
| Style | For Max. Webbing Wd. | Wd. | Lg. | Color | Pkg. Qty. | Pkg. | |
Feed Through | |||||||
|---|---|---|---|---|---|---|---|
Plastic | |||||||
| A | 3/4" | 1" | 1 9/16" | Black | 25 | 00000000 | 000000 |
| A | 1" | 1 5/16" | 1 9/16" | Black | 25 | 00000000 | 00000 |
Squeeze Release | |||||||
Plastic | |||||||
| B | 1" | 1 5/16" | 2 15/16" | Black | 10 | 00000000 | 0000 |
| B | 1 1/2" | 1 7/8" | 2 15/16" | Black | 5 | 00000000 | 00000 |
| B | 2" | 2 5/16" | 3 1/16" | Black | 5 | 00000000 | 00000 |
| C | 1" | 1 11/16" | 3" | Black | 10 | 00000000 | 00000 |
| C | 2" | 2 3/4" | 3 3/4" | Black | 5 | 000000000 | 00000 |
Cam | |||||||
Plastic | |||||||
| D | 2" | 2 3/8" | 2 15/16" | Black | 5 | 00000000 | 00000 |
Light Duty Sew-On Buckles for Webbing
Sew webbing onto these buckles for use as light duty straps on backpacks and bags.
Feed-through buckles are easy to cinch. Lift the buckle to release.
Hinged-bar buckles hold tight upon cinching; push down on the buckle to release.
Squeeze-release buckles quickly release with one hand.
Cam buckles tighten fast. Pull the strap through to tighten; lift the cam to release.
Spring-loaded clamp buckles have a spring and gripping teeth to hold webbing tight. Push down on the clamp to release.
Slide-bar buckles have a movable center bar for quick cinching.
Warning: Never use for lifting applications.
For technical drawings and 3-D models, click on a part number.
| For Max. Webbing Wd. | Wd. | Lg. | Color | Pkg. Qty. | Pkg. | |
Feed Through | ||||||
|---|---|---|---|---|---|---|
Plastic | ||||||
| 3/4" | 15/16" | 1 9/16" | Black | 25 | 00000000 | 00000 |
| 1" | 1 5/16" | 1 9/16" | Black | 25 | 00000000 | 0000 |
| 1 1/2" | 2" | 2 1/8" | Black | 25 | 00000000 | 00000 |
| 2" | 2 1/2" | 2 15/16" | Black | 5 | 00000000 | 00000 |
Hinged Bar | ||||||
Nickel-Plated Steel | ||||||
| 1 1/2" | 2 1/16" | 2" | __ | 1 | 0000000 | 0000 |
| 2" | 2 1/2" | 2 5/16" | __ | 1 | 0000000 | 0000 |
Squeeze Release | ||||||
Plastic | ||||||
| 3/4" | 1" | 2 1/16" | Black | 10 | 00000000 | 0000 |
| 1" | 1 5/16" | 2 11/16" | Black | 10 | 00000000 | 0000 |
| 1 1/2" | 1 7/8" | 2 3/4" | Black | 10 | 000000000 | 00000 |
| 2" | 2 5/16" | 2 7/8" | Black | 5 | 00000000 | 00000 |
Aluminum | ||||||
| 3/4" | 1" | 2" | __ | 1 | 0000000 | 0000 |
| 1" | 1 5/16" | 2 1/2" | __ | 1 | 0000000 | 0000 |
| 1 1/2" | 1 13/16" | 2 11/16" | __ | 1 | 0000000 | 0000 |
| 2" | 2 3/8" | 2 11/16" | __ | 1 | 0000000 | 0000 |
Cam | ||||||
Plastic | ||||||
| 3/4" | 1" | 1 3/16" | Black | 10 | 00000000 | 0000 |
| 1" | 1 1/4" | 1 7/16" | Black | 10 | 00000000 | 0000 |
| 1 1/2" | 1 13/16" | 2 3/16" | Black | 10 | 00000000 | 00000 |
Spring-Loaded Clamp | ||||||
Nickel-Plated Steel | ||||||
| 1" | 1 3/8" | 2 7/16" | __ | 1 | 0000000 | 0000 |
Slide Bar | ||||||
Nickel-Plated Steel | ||||||
| 3/4" | 1" | 1 1/8" | __ | 5 | 0000000 | 00000 |
| 1" | 1 1/4" | 1 3/8" | __ | 5 | 0000000 | 00000 |
Load-Rated Slides for Webbing
These slides are rated for heavy duty applications. To make an adjustable strap, thread webbing through both ends or sew it onto one end.
Stainless steel fittings are more corrosion resistant than zinc-plated steel fittings.
Warning: Never use for lifting applications.
For technical drawings and 3-D models, click on a part number.
Light Duty Slides for Webbing
Add a slide to webbing to make adjustable straps. Either thread webbing through both ends or sew it onto one end.
Warning: Never use for lifting applications.
For technical drawings and 3-D models, click on a part number.