Taper Lock and Pilot Bore
Relative Power ⚡ 100%
Fenner synchronous pulleys are manufactured from high grade iron (GG25), tolerate shock loading and achieve
rim speeds of up to 40 m/s.
Benefits
• Available in both classical Timing and HTD profiles
• Statically balanced to exceed grade G 6.3 (ISO 1940)
• Rim speeds up to a maximum of 40m/s
• Blackened to reduce corrosion, acts as an ideal primer and removes the need for cleaning coating agents
prior to installation
• Precision machined grooves to protect and maximise belt life whilst reducing noise
• Taper Lock mounting, for quick and simple installation
• Special designs and sizes available
The three principal dimensions of a pulley are number of grooves, pitch and width and are used in this order as a
designation e.g. 72-8M-50.
On the pulley, pitch is the distance between groove centres and is measured on the pulley pitch circle. The Pitch
Circle of the pulley coincides with the pitch line of the belt running in it. The pulley pitch diameter is always
greater than its outer diameter.
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