V-belt Gates 3M 387 JB
- Brand
- GATES
- Category
- Power transmission
- Subcategory
- V-belts
- Series
- Polyflex JB
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Description
GATES 3M 387 JB 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 3M 387 JB and any equivalents.
The Gates Polyflex JB 3M 387 JB is a narrow V-belt used in compact, high-speed drive systems. It is identified by its 3M profile and 387 mm length. This page covers where this belt type is used and how to confirm it fits your drive.
Polyflex JB belts are commonly found on small industrial equipment, power tools, and light-duty machinery where space is tight and speeds are high. The 3M profile indicates a narrow cross-section, and the 387 mm length is the datum length for the belt. If your drive uses a Polyflex JB belt, this part number is the direct reference.
To confirm fit, check the marking on the back of your existing belt. It should read 3M 387 JB or an equivalent Polyflex JB designation. Measure the belt length only if the marking is worn, and compare it to the 387 mm listed here. Also verify the pulley groove profile matches the 3M narrow V shape.
When requesting a quote, send the part number 3M 387 JB, the brand Gates, and the quantity you need. If you are replacing multiple belts on the same drive, include all part numbers so we can help you match them. Our team can confirm the belt or suggest an equivalent based on the data you provide.
Dimensions
- Length
- 387mm
Frequently asked questions
- What does the 3M 387 JB part number tell me?
- It identifies a Gates Polyflex JB narrow V-belt with a 3M profile and a 387 mm length. Use this number to match your existing belt.
- How do I confirm this belt fits my drive?
- Check the marking on the back of your old belt for 3M 387 JB. Confirm the pulley groove is compatible with the 3M narrow V profile. If the marking is unreadable, measure the length and compare to 387 mm.
- What should I send to request a quote?
- Send the part number 3M 387 JB, the brand Gates, and the quantity required. If you have multiple belts on the same drive, include all part numbers.