250-S4.5M-630 Timing Belt

The 250-S4.5M-630 is a timing belt from D&D Global's Dura-Sure Torque - S4.5M Series line. It transmits power positively with no slip, holding timing between shafts on synchronous drives.

Applications

• Conveyors and indexing drives
• Pumps, compressors, and blowers
• Packaging, processing, and automation equipment
• Positive drives where timing must stay locked with no slip

Browse the full range in Timing Belts, or use our belt identification guide to match an existing part.

Cross-Reference

250-S4.5M-630 is a standardized industry size, so a 250-S4.5M-630 from any major manufacturer shares the same dimensions and runs on the same pulleys/sheaves. For OEM or proprietary numbers, confirm the equivalent before ordering — call (888) 203-2358.

All manufacturer names and part numbers are used for reference and identification purposes only. Texas Belting & Supply is not affiliated with, sponsored by, or endorsed by any other manufacturer.

Frequently Asked Questions

What is 250-S4.5M-630 used for?

250-S4.5M-630 is a timing belt used on positive, no-slip drives such as conveyors, pumps, packaging machinery, robotics, and machine tools. Synchronous belts hold timing between shafts, so they suit applications where slip is unacceptable.

What are the dimensions of 250-S4.5M-630?

250-S4.5M-630 has a 4.5 mm tooth pitch, 140 teeth, a belt width of 25 mm, and a 630 mm (Pitch Length). The pitch length is the pitch-line circumference.

What does the S4.5M in 250-S4.5M-630 mean?

S4.5M is a STD (curvilinear) synchronous tooth profile. The belt must match the pulley, so a S4.5M belt runs only on S4.5M pulleys.

Does 250-S4.5M-630 ship from Houston?

Yes. 250-S4.5M-630 ships from our Houston, Texas warehouse, with same-day shipping on in-stock items. Call (888) 203-2358 to confirm stock and request a quote.