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Grey metal V-belt pulley with single groove and fixed bore

Tb Wood'S

Tb Wood'S BK52118 V-Belt Pulley 1-1/8 in Fixed Bore 4.95 in OD

SKU CH-TE6M-FEAD1

A fixed-bore V-belt pulley with 4.95 in outside diameter and 1-1/8 in bore for A, AX, B and BX belts

  • Product typeSheaves & Pulleys
  • Fixed-bore design simplifies installation
  • 1-1/8 inch bore fits standard shafts
  • 95 inch OD accommodates multiple belt sizes
  • Compatible with A, AX, B and BX belts
  • Manufactured under ISO 9001:2015 quality system

V-Belt Pulley for Industrial Drives

This Tb Wood'S BK52118 pulley is a new power-transmission component designed for machinery that uses classical V-belts. It mounts on a 1-1/8 in fixed bore and provides a single groove for belt engagement. The 4.95 in outside diameter suits compact drive layouts in manufacturing and maintenance environments.

Fixed Bore Matches 1-1/8 in Shafts

The bore diameter is the decisive specification: this sheave only fits shafts measuring exactly 1-1/8 in. Pitch diameters are 4.2 in for A, AX, 4L belts and 4.6 in for B, BX, 5L belts, while 3L, 3V, 3VX, 5V, 5VX, C and CX profiles are not applicable. ISO 9001:2015 certification covers the manufacturing process.

Suits Single-Groove A/B Belt Drives

Maintenance teams and OEMs replacing a worn sheave on an existing A- or B-section drive will find the correct pitch diameters here. Builders needing multi-groove configurations, C-section capacity or taper-lock mounting should look at other part numbers. No hardware or belts are included with the pulley.

How it compares

Measured against everything we stock in Bearings, Belts & Drive Components, at today’s prices. Recalculated every night.

Price $19.99
Cheaper than about 65% of the 693 comparable items (median $35.99).

Specifications

Product
Product typeSheaves & Pulleys

Questions about this item

What does the 4.95 in outside diameter mean for my drive ratio?

The 4.95 in outside diameter determines the driven speed when paired with a driver pulley; use the 4.2 in A/4L pitch diameter or 4.6 in B/5L pitch diameter to calculate the exact ratio for your belt section.

How does the fixed bore and ISO 9001:2015 certification affect installation and quality?

The fixed 1-1/8 in bore fits directly onto a matching shaft without bushings, and the ISO 9001:2015 certification confirms the manufacturing process meets international quality management standards.

What shaft and keyway dimensions are required to mount this pulley?

The pulley requires a 1-1/8 in diameter shaft with a standard keyway; the fixed bore is machined for a direct slip fit and set-screw or key retention.

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