
V-belt Optibelt SPB 3750
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- V-belts
- Section
- SPB
- Series
- SK metric profile V-belts
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Other brands for this category
Ask us for alternatives. We check every equivalent against the part number and your application.
GATES and OPTIBELT: matching part numbers →OPTIBELT and STARK: matching part numbers →
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Description
OPTIBELT SPB 3750 belongs to v-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 SPB 3750 and any equivalents.
This Optibelt SPB 3750 is a narrow wedge V-belt in the SK metric profile series. It is used in industrial drives where a compact, high-capacity belt is needed. The SPB profile and 3750 mm length identify the belt; the 16.3 mm top width, 13 mm height and 40° angle define its cross-section.
Narrow wedge V-belts like this SPB profile are common on pumps, fans, compressors, conveyors and other driven equipment. They run in matched SPB pulleys and are chosen when a standard V-belt would be too wide or would not carry the load. The same size is also listed under Stark SPB 3750.
To confirm fit, check the marking on the old belt and measure its length. Compare the profile, top width, height and angle against the pulley groove. If the old belt is worn or stretched, use the part number and the pulley dimensions to verify the replacement.
For a quote, send the part number Optibelt SPB 3750, the quantity, and the equipment or drive details. If the exact belt is not what you need, the team can help confirm the right belt or suggest an equivalent from the data you provide.
Dimensions
- Section
- SPB
- Length
- 3750mm
Frequently asked questions
- What does the SPB profile mean on this belt?
- SPB is the profile of this narrow wedge V-belt. It has a 16.3 mm top width, 13 mm height and 40° angle. These dimensions must match the pulley groove for the belt to seat and transmit power correctly.
- How do I confirm the length of the Optibelt SPB 3750?
- The length is 3750 mm. Check the marking on the back of the old belt and compare it to this figure. If the marking is unreadable, measure the belt or the drive and use the profile and length to confirm the replacement.
- Can I replace a different brand with this Optibelt belt?
- The same size is also listed under Stark SPB 3750. Match the profile, length, top width, height and angle to your drive. If you are unsure, send the old belt marking and pulley details for confirmation.

