
Timing belt Optibelt 3M 669
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- Omega
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Tell us the quantity you need and request a quote by WhatsApp or email.
Can't find the exact model? Tell us the part number or model you need. We'll track it down and quote it, whether or not it appears in our catalog.
Description
OPTIBELT 3M 669 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 3M 669 and any equivalents.
The Optibelt 3M 669 is an Omega timing belt with an HTD 3M profile and a 669 mm length on a 3 mm pitch. If you are replacing a belt on a synchronous drive, this page gives you the exact identification data to match against the belt in your hand.
Start by reading the marking on the back of the old belt. The part number, profile and length are what you need to compare: this belt is marked 3M 669, its profile is HTD 3M, and its length is 669 mm. The 3 mm pitch is part of the profile designation. When those three points line up with the belt you are removing, you have the correct replacement.
If the back of the old belt is worn or the marking is gone, measure the length and check the tooth profile before ordering. A belt with the same profile and length will seat on the same pulleys; a different profile or length will not. Send the part number 3M 669, or the profile and length you measured, and we will confirm it against this Optibelt belt.
We carry the Optibelt 3M 669 as part of the Omega line. To request a quote, send the part number by WhatsApp or email. If you are unsure whether this is the belt on your drive, include a photo of the old belt marking or the measured profile and length, and the team will help you confirm the match.
Dimensions
- Profile
- HTD 3M
- Pitch
- 3mm
- Length
- 669mm
Frequently asked questions
- What data do I need to match this belt to my drive?
- The profile, the length and the pitch. This belt has an HTD 3M profile, a 669 mm length and a 3 mm pitch. Compare those with the marking on the belt you are replacing.
- Can I use the part number alone to order?
- Yes. Send the part number 3M 669 by WhatsApp or email and we will quote that Optibelt belt. If you want confirmation first, include the profile and length from your old belt.
- What if the marking on my old belt is unreadable?
- Measure the length and identify the tooth profile, then send those details. We will check them against the 3M 669 specification to see whether this belt matches.

