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Tb Wood's 603B three-groove V-belt pulley, quick-detachable bushed bore

Tb Wood'S

Tb Wood'S 603B Quick Detachable 3 Groove v-belt 1/2 to 1-15/16 in

SKU CH-FH9H-KXBT6

Quick-detachable 3-groove pulley fits 4L, 5L, A, AX, B and BX belts with 5.6 and 6 inch pitch diameters

  • Quick-detach bushing speeds up pulley changes
  • Three grooves accept 4L, 5L, A, AX, B and BX belts
  • Bore range covers 1/2 to 1-15/16 in shaft sizes
  • 6 in pitch diameter for A and 4L belts
  • 6 in pitch diameter for B and 5L belts

Quick Detachable 3 Groove V-Belt Pulley

The Tb Wood'S 603B is a quick detachable bushed bore pulley designed for industrial power transmission. It accepts belt trade sizes 4L, 5L, A, AX, B and BX across three grooves. The SD bushing interface allows rapid removal and replacement without specialised tools. This new component suits maintenance crews and OEM assemblers who standardise on QD hubs.

Installation and Common Issues

The quick detachable bushing slides into the tapered hub and locks with cap screws, so no keyway machining is required. Correct torque on the mounting bolts prevents hub walk and belt squeal under load. Misalignment between driver and driven shafts remains the primary cause of premature groove wear. Ensure the SD bushing size matches the shaft diameter before ordering to avoid fitment delays.

Suitable Applications and Limitations

This pulley fits drives using classical A, B, 4L or 5L cross-sections where a 5.6 in or 6 in pitch diameter meets the speed ratio. Operations needing C, 3V, 5V or 8V belt profiles should select a different hub because those pitches are not applicable. Builders requiring a non-tapered bore or a fixed bore configuration will need an alternative mounting style.

Highlights

  • Quick-detach bushing speeds up pulley changes
  • Three grooves accept 4L, 5L, A, AX, B and BX belts
  • Bore range covers 1/2 to 1-15/16 in shaft sizes
  • 6 in pitch diameter for A and 4L belts
  • 6 in pitch diameter for B and 5L belts

Specifications

No published specifications for this item yet.

Questions about this item

How do I verify the 603B pulley is running true after mounting it on an SD bushing?

Spin the assembly by hand and watch for wobble at the 5.6 in A-belt pitch diameter or the 6 in B-belt pitch diameter; a smooth rotation with no radial run-out confirms correct seating.

What ships with the 603B and what must I supply?

The pulley arrives alone; you must provide an SD quick-detachable bushing, the 4L, 5L, A, AX, B or BX belts, and shaft hardware.

Which belt sections does the 603B support so I can pick the right one?

It accepts 4L, 5L, A, AX, B and BX trade sizes; the A and AX belts run on the 5.6 in pitch diameter while B and BX belts use the 6 in pitch diameter.

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