
Timing belt Optibelt 126 3M SL 450
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Timing belts
- Series
- HTD
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Description
OPTIBELT 126 3M SL 450 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 126 3M SL 450 and any equivalents.
This Optibelt 126 3M SL 450 is an HTD timing belt with a 3M profile, a 126 mm length and a 3 mm pitch. It is used where a compact synchronous drive needs positive, non-slip transmission rather than friction. Confirm fit by profile, length and pitch before you order.
HTD timing belts like this one are common on small, precise drives such as positioning axes, light conveyors, spindles and compact gearbox inputs. The teeth mesh with a matching HTD pulley to keep the driven shaft in step with the motor, so the belt is normally selected by profile and length rather than by the machine it came from.
To confirm this belt fits your drive, read the marking on the back of the old belt and compare it with the profile, length and pitch shown here. Check the pulley grooves are clean and undamaged, and that the belt sits squarely without riding up the flanges. If the marking is worn or missing, measure the outside length and count the teeth so we can match the profile and pitch.
Send the part number, the belt marking, or a photo of the old belt and the pulley to our team by WhatsApp or email. We carry Optibelt and can help confirm the right belt or suggest an equivalent from the same size range. For drive replacements, inspect the pulleys and tensioner at the same time and replace belts in sets where the drive runs more than one.
Dimensions
- Profile
- HTD 3M
- Pitch
- 3mm
- Length
- 126mm
Frequently asked questions
- What does the 126 3M SL 450 marking tell me?
- It identifies an Optibelt HTD timing belt in the 3M profile with a 126 mm length and a 3 mm pitch. Use those three values to check against your pulley and the old belt marking.
- How do I confirm this belt fits my drive?
- Compare the profile, length and pitch with the marking on your old belt and with the pulley grooves. If the marking is unreadable, measure the belt and count the teeth, then send those details for confirmation.
- Can you help if I am not sure of the part number?
- Yes. Send a photo of the old belt and the pulley, or the marking from the back of the belt, by WhatsApp or email. We will help confirm the right belt or suggest an equivalent.

