
Poly-V belt Optibelt PK 775
- Brand
- OPTIBELT
- Category
- Power transmission
- Subcategory
- Poly-V belts
- Series
- RB
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Tell us the quantity you need and request a quote by WhatsApp or email.
Other brands for this category
Ask us for alternatives. We check every equivalent against the part number and your application.
OPTIBELT and STARK: matching part numbers →GATES and OPTIBELT: matching part numbers →
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 PK 775 belongs to poly-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 PK 775 and any equivalents.
The Optibelt RB PK 775 is a Poly-V (multi-rib) belt with a PK profile and a 775 mm length. Before fitting a new belt, inspect the drive and sheaves so the replacement runs true and lasts.
Check sheave grooves for wear, rust, burrs or embedded debris. Worn or damaged grooves can shorten belt life and cause noise or slip, even when the new belt is correct. Confirm alignment between pulleys and verify that the tensioner and any idler pulleys turn freely without play or roughness.
The same size is also listed under Stark PK 775 and Gates PK 775. If you are matching an existing belt, read the marking on the back of the old belt and compare it with the profile and length above. Send the part number and a photo of the old belt marking for a prompt quote.
When you request a quote, include the part number, the quantity, and any drive details you have. The team can confirm the right belt or suggest an equivalent based on the information you provide.
Dimensions
- Profile
- PK
- Length
- 775mm
Frequently asked questions
- What should I check on the drive before installing this belt?
- Inspect sheave grooves for wear, rust, burrs or debris, check pulley alignment, and confirm that the tensioner and idler pulleys spin freely. Correct any issues before fitting the new belt.
- How do I confirm this is the right belt for my drive?
- Read the marking on the back of the old belt and compare the profile and length with the PK and 775 mm listed here. If you are unsure, send the part number and a photo of the old belt marking for confirmation.
- Is the same size listed under other brands?
- Yes. The same size is also listed under Stark PK 775 and Gates PK 775.

