4578-14M-85, Optibelt, OMEGA Metric Timing Belt HTD
Metric, Rubber, Timing belt
PHG 640-8M-20, SKF, Metric Timing Belt HTD - PHG 640-8M-20
Metric, Rubber, Timing belt, EAN code: 07316572590232
640-8M-20, Protorque, HTD Metric Timing Belt
Metric, Rubber, Timing belt
640-8MGT4-20, Gates, POWERGRIP® GT4 Metric Timing Belt
Metric, Rubber, Timing belt, EAN code: 5400608207804
640-8MGT4-30, Gates, POWERGRIP® GT4 Metric Timing Belt
Metric, Rubber, Timing belt, EAN code: 5400608207811
645-5M-15, Gates, POWERGRIP® HTD Metric Timing Belt
Metric, Rubber, Timing belt, EAN code: 5412571282009
650-5MGT3-9, Gates, POWERGRIP® GT3 Metric Timing Belt
Metric, Rubber, Timing belt, EAN code: 5414465312915
657-3MGT3-6, Gates, POWERGRIP® GT3 Metric Timing Belt
Metric, Rubber, Timing belt, EAN code: 5414465316173
695-5M-15, Gates, POWERGRIP® HTD Metric Timing Belt
Metric, Rubber, Timing belt, EAN code: 5412571299748
700-5M-09, Protorque, HTD Metric Timing Belt
Metric, Rubber, Timing belt
700-5M-25, ContiTech, CONTI® SYNCHROBELT Metric Timing Belt - HTD
Metric, Rubber, Timing belt, EAN code: 4051817016971
700-5M-25, Protorque, HTD Metric Timing Belt
Metric, Rubber, Timing belt
665-5M-15, ContiTech, CONTI® SYNCHROBELT Metric Timing Belt - HTD
Metric, Rubber, Timing belt, EAN code: 4051817016902
665-5M-15, Gates, POWERGRIP® HTD Metric Timing Belt
Metric, Rubber, Timing belt, EAN code: 5412571279115
665-5M-25, ContiTech, CONTI® SYNCHROBELT Metric Timing Belt - HTD
Metric, Rubber, Timing belt, EAN code: 4051817016919
665-5M-25, Gates, POWERGRIP® HTD Metric Timing Belt
Metric, Rubber, Timing belt, EAN code: 5412571279313
665-5M-9, ContiTech, CONTI® SYNCHROBELT Metric Timing Belt - HTD
Metric, Rubber, Timing belt, EAN code: 4051817016896
670-5M-25, Protorque, HTD Metric Timing Belt
Metric, Rubber, Timing belt
PHG 680-8M-30, SKF, Metric Timing Belt HTD - PHG 680-8M-30
Metric, Rubber, Timing belt, EAN code: 07316572590317
688-8M-30-CXP, ContiTech, CONTI® SYNCHROFORCE CXP High-performance timing belt HTD
Metric, Rubber, Timing belt, EAN code: 4051817052009
What Are Metric Timing Belts?
Metric timing belts (also known as metric synchronous belts) feature precision-moulded teeth that mesh perfectly with corresponding pulley grooves. Unlike V-belts or flat belts, timing belts eliminate slippage, ensuring exact rotational synchronisation between shafts.
They are commonly manufactured in metric pitches such as:
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3M
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5M
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8M
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14M
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20M
These pitch designations refer to the distance (in millimetres) between belt teeth, allowing accurate specification for industrial machinery.
Need Help Selecting the Right Belt?
Choosing the correct timing belt ensures optimal performance and longevity. If you require help identifying pitch, length, or load capacity, our technical specialists are ready to assist.
Metric Timing Belts FAQs
What do 5M, 8M and 14M mean on a timing belt?
The “M” refers to metric pitch. For example:
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5M = 5mm pitch
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8M = 8mm pitch
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14M = 14mm pitch
The pitch indicates the distance between belt teeth and must match the pulley exactly.
What is the difference between metric and imperial timing belts?
Metric timing belts use millimetre pitch measurements, while imperial belts use inch-based pitch measurements. They are not interchangeable, and mixing the two can cause premature wear or drive failure.
How do I identify the correct timing belt size?
You will need:
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Tooth pitch (e.g., 8M)
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Belt length (in mm)
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Belt width (in mm)
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Tooth profile (HTD, STD, etc.)
If the belt code is visible, it usually contains this information.