
Timing belt Optibelt 5M 635
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Omega
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Description
OPTIBELT 5M 635 belongs to timing belt, part of our Power transmission range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for 5M 635 and any equivalents.
When you pull a worn timing belt, the marking on the back is your best starting point. This page covers the Optibelt Omega 5M 635, an HTD 5M profile synchronous belt with a 635 mm length and 5 mm pitch. Read the old belt before you order so the replacement matches what the drive was built around.
Look for the full code on the back of the belt, not just a fragment. The marking should show the profile and the length, and on this belt that reads HTD 5M and 635 mm. If the old belt is worn, glazed or has missing teeth, clean the back carefully so you can still read the characters. A photo of the marking next to a ruler helps confirm the details when you send your request.
The 5 mm pitch and 635 mm length are the two numbers that identify this belt. The HTD 5M profile is a synchronous tooth profile, so the belt and the pulleys must match. Before ordering, inspect the pulleys for worn teeth, check the flanges and confirm the belt tracks straight. If the drive uses more than one belt, replace them as a set so the load stays even.
We carry the Optibelt Omega 5M 635 for maintenance, engineering and purchasing teams. To request a quote, send the part number and the marking from your old belt by WhatsApp or email. Our team can confirm the profile and length and help you identify the correct belt for the drive.
Dimensions
- Profile
- HTD 5M
- Pitch
- 5mm
- Length
- 635mm
Frequently asked questions
- How do I read the marking on an Optibelt Omega 5M 635?
- The marking on the back of the belt identifies the profile and the length. On this belt, the profile is HTD 5M and the length is 635 mm. If the marking is worn, clean it and photograph it before sending your request.
- What do the 5M and 635 mean on this belt?
- 5M refers to the HTD 5M profile with a 5 mm pitch. 635 is the length in millimeters. Both numbers are needed to match the belt to the pulleys and the drive layout.
- Can you help confirm the right belt for my drive?
- Yes. Send the part number and the marking from your old belt by WhatsApp or email. We can confirm the profile and length and help you identify the correct replacement.

