6,342 Products Indexed
Timing Belts — Synchronous Belt Specifications Database
Search synchronous timing belts from Gates, Continental (ContiTech), Optibelt, and Megadyne. Filter by belt profile (HTD, GT, RPP, XL, L, H), pitch, width, and length for precision synchronous drive applications.
Key Specification Fields
Belt Profile / Section
XL, L, H, XH (imperial trapezoidal); HTD 3M, 5M, 8M, 14M; GT 2M, 3M, 5M, 8M; RPP 5M, 8M, 14M
Pitch
Center-to-center distance between teeth in mm or inches
Width
Belt width in mm or fractions of an inch — wider = higher power rating
Length (pitch length)
Pitch circumference in mm (e.g., "1120") or number of teeth
Material
Neoprene with fiberglass cords (standard), Polyurethane with steel or Kevlar cords (high performance)
Teeth Count
Number of teeth on the belt
Common Applications
- CNC machine axes (no-slip positioning)
- Printing and registration systems
- Robotics and automation
- Pumps requiring synchronization
- Medical equipment
- HVAC camshaft drives
Frequently Asked Questions
What is the difference between HTD and GT timing belt profiles?
HTD (High Torque Drive) uses a rounded tooth profile that distributes load across multiple teeth, offering high torque capacity but slightly less positional accuracy. GT (Gates Tooth) uses a modified curvilinear profile that provides higher power ratings, smoother meshing, and better positioning accuracy than HTD. GT belts require GT pulleys; they are not interchangeable with HTD pulleys of the same pitch.
Can I use a timing belt instead of roller chain?
Timing belts offer quieter operation, no lubrication requirement, and lighter weight compared to roller chain. They are preferred for clean environments, precision positioning, and high-speed applications. Roller chain is preferred for very high power, shock loads, or when center distance must be adjustable.