V-belt Optibelt SPZ 1237
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- V-belts
- Section
- SPZ
- Series
- SK metric profile V-belts
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Other brands for this category
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GATES and OPTIBELT: matching part numbers →OPTIBELT and STARK: matching part numbers →
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Description
OPTIBELT SPZ 1237 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 SPZ 1237 and any equivalents.
The Optibelt SPZ 1237 is a narrow wedge V-belt in the SK metric profile series. It measures 1237 mm in length with a 9.7 mm top width, 8 mm height and a 40 degree angle. Narrow wedge belts like this one are common on compact, high-speed industrial drives where a standard profile would be too wide for the pulley grooves.
To confirm fit, compare the marking on the back of the old belt with the SPZ profile and the 1237 mm length. Check that the pulley grooves accept the 9.7 mm top width and 8 mm height, and that the 40 degree angle matches the groove angle. If the old belt is worn or the marking is unreadable, measure the outside length and the top width before ordering.
The same size is also listed under Stark as SPZ 1237, which gives you a second option when the Optibelt belt is not the one on the shelf. On multi-belt drives, replace all belts in the set at the same time so the load stays evenly distributed across the grooves.
Send the part number, the quantity and a photo of the belt marking by WhatsApp or email to request a quote. If you are unsure between two sizes, include the pulley dimensions and the application so the team can help confirm the right belt.
Dimensions
- Section
- SPZ
- Length
- 1237mm
Frequently asked questions
- What is the difference between SPZ and a standard V-belt profile?
- SPZ is a narrow wedge profile. This belt has a 9.7 mm top width, 8 mm height and 40 degree angle, so it sits in narrower pulley grooves than a classic V-belt of similar length.
- How do I confirm the length of the Optibelt SPZ 1237?
- Check the marking on the back of the old belt for SPZ and 1237. If it is unreadable, measure the belt and compare against the 1237 mm length listed for this part.
- Can I mix this belt with another brand on the same drive?
- The same size is also listed under Stark as SPZ 1237. On a multi-belt drive, it is best practice to replace the full set at once so all belts carry the load evenly.