ProTech
ProTech BX56 Cogged V-Belt
ProTech BX56 Cogged V-Belt
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BX56 is a standard BX-section cogged (notched) V-belt size. This TrueLine listing is ProTech-branded/vendor-supplied and the underlying manufacturer is not named, so confirm dimensions and application against the belt being replaced.
- TrueLine states a broad operating range of -50°F to +250°F.
- Precision molded cogs reduce bending stress on small-diameter pulleys.
- Static conductive and built to Chek Mate tolerances for matched sets.
Standard size reference: BX56 commonly denotes a 56-inch inside circumference and approximately 59-inch effective length, but belt-maker dimensions/materials can vary.
Fitment: Verify the complete part number, section, length, pulley groove and equipment model before ordering.
Specifications
| Section / construction | BX classical-section, cogged/notched, bandless raw-edge V-belt; one rib |
|---|---|
| Standard BX dimensions | Nominal top width 5/8 in (approximately 17 mm) and height 13/32 in (approximately 11 mm); manufacturers may vary nominal dimensions. TrueLine does not name a manufacturer or publish dimensions. |
| BX56 inside length | 56 in (1422 mm) nominal inside circumference |
| BX56 effective length | 59 in (1499 mm) effective/RMA length |
| Top width / thickness (Gates reference) | 0.67 in (17 mm) top width; 0.43 in (11 mm) thickness |
| Included performance claims | -50°F to +250°F operating range, static conductive, precision molded cogs, and Chek Mate matched-set tolerances |
| Gates reference material | Ethylene elastomer belt material with polyester cord; static conductive |
| Pulley suitability | Cogged/notched construction is intended to improve flexibility on small-diameter sheaves and back-idler drives |
Frequently asked questions
What does BX56 mean?
BX is the classical cogged/notched V-belt section; 56 commonly denotes a 56-inch nominal inside circumference. Verify the maker’s dimensional standard before substituting.
What are the standard BX56 dimensions?
A common reference is 5/8-inch (about 17 mm) top width, about 13/32-inch (11 mm) height, 56-inch inside length and 59-inch effective length. Manufacturers can vary, and TrueLine does not identify the maker for this listing.
Is BX56 a smooth or cogged belt?
BX56 is the cogged/notched BX size. The molded cogs improve flexibility, especially on smaller sheaves.
Can I replace any B56 belt with BX56?
No. BX56 and B56 are different constructions; confirm the specified section, length, groove and equipment application rather than relying on the number alone.
Is this belt static conductive and temperature resistant?
TrueLine describes this listing as static conductive with a -50°F to +250°F operating range. Confirm those claims on the supplied belt or manufacturer documentation when safety or hazardous service matters.
Does BX56 identify a specific manufacturer?
No. BX56 is an industry size designation used by multiple makers. TrueLine labels this item vendor/ProTech-branded but does not name the underlying manufacturer.
Documents & literature
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