Timing Belt and Pulley Accessories
Timing Belt and Pulley Accessories
Texas Belting stocks a full range of accessories for polyurethane timing belt drive systems, from tensioning clamps for linear drive installations to field welding equipment for on-site belt splicing. Every accessory is designed to work with the polyurethane timing belt and precision pulley product lines.
- Tensioning clamps (TC-25 to TC-150)
- Clamp plates for linear drive carriages
- Tooth bar stock for custom fabrication
- Keyless bushings (6mm to 80mm shaft)
- Spring-loaded tensioners (light to heavy duty)
- Idler rollers matched to belt width
- Bolt-on and press-fit flanges
- Portable field welding equipment
Available Accessories
| Accessory | Description | Sizes Available | Application |
|---|---|---|---|
| Tensioning clamps | Tooth-profile brackets for securing open-ended belt ends | For belt widths 10 to 150mm | Linear drive carriages, actuator connections |
| Clamp plates | Flat clamping surface for belt attachment | Matched to belt width | Belt termination on machine frames |
| Aluminum bar stock | Tooth bar material in various pitches | Various cross-sections | Custom clamp fabrication, one-off fixturing |
| Keyless bushings | Friction-lock, zero-backlash shaft mounting | Shaft sizes 6 to 80mm | Pulley mounting without keyways, servo drives |
| Spring tensioners | Calibrated spring mechanism with idler roller | Light, medium, heavy duty | Automatic tension maintenance, variable load drives |
| Idler rollers | Guide belt path, add wrap angle | Matched to belt width | Belt routing, tensioning, back-bend applications |
| Flanges | Prevent belt from tracking off pulleys | Bolt-on, press-fit styles | Standard drives without self-tracking belts |
| Tension meters | Belt tension measurement instruments | Various ranges | Setting correct tension per specifications |
| Field welding equipment | Portable belt welding units | Various belt widths | On-site belt splicing and replacement |
Tensioning Clamp Selection
Select the clamp model that matches your belt width. The clamp must fully support the belt width to distribute clamping force evenly and prevent belt damage.
| Belt Width Range | Clamp Model | Fastener Size | Holding Force |
|---|---|---|---|
| 10 to 25mm | TC-25 | M4 | Standard |
| 25 to 50mm | TC-50 | M5 | Standard |
| 50 to 100mm | TC-100 | M6 | Heavy duty |
| 100 to 150mm | TC-150 | M8 | Heavy duty |
Drive Design Tips
Proper tensioning is critical for timing belt drive performance. Under-tensioned belts can skip teeth under load, while over-tensioning reduces belt and bearing life. Spring-loaded tensioners are recommended for drives subject to variable loads or thermal expansion. For linear drive applications, tensioning clamps with adjustment slots provide precise tension control during setup and maintenance. A tension meter is recommended for setting belt tension to the manufacturer's specification.
Frequently Asked Questions
Texas Belting stocks tensioning clamps, clamp plates, aluminum bar stock, keyless bushings (6 to 80mm shaft), spring-loaded tensioners, idler rollers, bolt-on and press-fit flanges, tension meters, and portable field welding equipment. All accessories are available for individual purchase. Call 888-203-2358 for pricing and availability.
Tensioning clamps secure the ends of open-ended timing belts to linear slides, carriages, or machine frames. They grip the belt teeth without damaging the belt and allow precise tension adjustment through slotted mounting holes. Four sizes are available (TC-25 through TC-150) covering belt widths from 10 to 150mm.
Select a clamp that matches your belt width: TC-25 for 10 to 25mm belts, TC-50 for 25 to 50mm, TC-100 for 50 to 100mm, and TC-150 for 100 to 150mm. The clamp must fully support the belt width to distribute clamping force evenly. Undersized clamps cause localized stress and premature belt failure.
Keyless bushings use a tapered sleeve that clamps concentrically onto the shaft when tightened, providing a zero-backlash connection between the pulley and shaft without keyways or set screws. They are available for shaft sizes from 6 to 80mm and are the preferred mounting method for precision positioning and servo applications.
Spring-loaded tensioners use a calibrated spring mechanism to maintain constant pressure on the belt through an idler roller. They automatically compensate for belt stretch, thermal expansion, and manufacturing tolerances, ensuring consistent belt tension throughout the drive's operating life. Available in light, medium, and heavy duty ratings.
Idler roller diameter should be at least as large as the minimum recommended pulley diameter for your belt pitch. Larger idlers reduce belt stress and extend belt life. For back-bending applications (where the belt wraps around the idler on its smooth side), use even larger idlers per the manufacturer's specification. See the specifications reference for minimum pulley diameters by pitch.
Keyless bushings provide true zero-backlash, concentric clamping distributed evenly around the shaft. Set screws create a point load that can damage shafts and still allow slight rotational play. Keyless bushings are recommended for servo drives, CNC machines, and any application where backlash must be minimized.
Yes. All accessories are available for individual purchase. Contact Texas Belting at 888-203-2358 with your requirements for pricing, availability, and shipping options. Most standard accessories ship within 1 to 3 business days.
Need Timing Belt Accessories?
Send us your belt profile, width, and application details. We will recommend the right clamps, tensioners, and mounting hardware.