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Metal V-belt pulley with four grooves and quick-detachable bushed bore

Tb Wood'S

Tb Wood'S 804B Quick Detachable Bushed Bore 4 Groove V-Belt

SKU CH-3XTF-E2YNB

Quick-detachable bushed sheave with four grooves accepting 4L, 5L, A, AX, B and BX belts, pitch diameters 7.6 in and 8 in

  • TypeSheaves & Pulleys
  • Quick-detachable bushing speeds installation and removal
  • Four-groove design transmits higher torque loads
  • Accepts 4L, 5L, A, AX, B and BX belt sections
  • 6 in pitch diameter on A and 4L belts
  • 8 in pitch diameter on B and 5L belts

Quick Detachable Bushed Bore Sheave

This TB WOODS 804B sheave is a power-transmission component designed for V-belt drives in industrial machinery. It suits maintenance teams and equipment builders who need a four-groove pulley that can be swapped quickly without reworking the shaft. The quick-detachable bushing system reduces downtime during belt or pulley changes.

Four-Groove Compatibility and Mounting

The sheave accepts 4L, 5L, A, AX, B and BX belt sections, covering light- to medium-duty drives in a single unit. Its quick-detachable bushed bore fits an SK bushing, so the same pulley can serve different shaft sizes by swapping only the bushing. This modular mounting simplifies inventory and alignment on the shop floor.

Pitch Diameter Determines Drive Ratio

The 4L, A and AX grooves share a 7.6 in pitch diameter, while the 5L, B and BX grooves run at 8 in. That single figure sets the speed ratio and belt tension for each belt type, so the buyer must match it to the driven component. No other diameter is offered for this model.

Highlights

  • Quick-detachable bushing speeds installation and removal
  • Four-groove design transmits higher torque loads
  • Accepts 4L, 5L, A, AX, B and BX belt sections
  • 6 in pitch diameter on A and 4L belts
  • 8 in pitch diameter on B and 5L belts

Specifications

TypeSheaves & Pulleys

Questions about this item

Which pitch diameters does the 804B sheave provide for A and B belts?

The 804B sheave gives a 7.6 in pitch diameter for A and AX belts and an 8 in pitch diameter for B and BX belts.

What bushing size and type does the 804B require for mounting?

The 804B uses an SK quick-detachable bushing with a bore range of 1/2 in to 2-1/2 in.

How do I install the 804B sheave on the shaft without damaging the bushing?

Slide the SK bushing onto the shaft, position the sheave, then tighten the bushing cap screws evenly in a star pattern to the recommended torque.

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