We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Metallic two-groove V-belt pulley with quick-detachable bushed bore, silver finish

Tb Wood'S

Tb Wood'S 2BK100 Quick Detachable Bushed Bore 2 Groove V-Belt

SKU CH-BCP4-5AQP2

A two-groove V-belt sheave with quick-detachable bushed bore for 4L, 5L, A, AX, B and BX belts

  • TypeSheaves & Pulleys
  • Quick-detachable bore speeds pulley changes
  • Two grooves match A, B, 4L, 5L, AX, BX belts
  • 4 in B-pitch diameter handles higher torque
  • Split-taper bushing locks securely to shaft
  • Ready-to-install new unit cuts downtime

Quick Detachable Sheave for A, B and 4L/5L Belts

The Tb Wood'S 2BK100 is a two-groove V-belt sheave designed for industrial power-transmission drives. It accepts A, AX, B, BX, 4L and 5L belt sections and uses a split-taper quick-detachable bushing for fast installation and removal. Maintenance teams and machinery builders specify it when they need a versatile sheave that fits multiple belt profiles in one mounting.

Verify shaft diameter and keyway before ordering

The sheave mounts on a quick-detachable split-taper bushing that covers a bore range of 1/2 in to 1-1/2 in. Confirm the exact shaft size and key dimensions on your existing drive so the correct bushing can be selected. Also check that the 9 in A-pitch diameter and 9.4 in B-pitch diameter match the speed ratio required by your application.

Cast-iron construction runs cool with no lubrication

The cast-iron body dissipates heat naturally during normal operation and requires no external cooling or lubrication. Because the drive transmits power through belt friction, noise levels stay low and power draw is determined by the driven load rather than the sheave itself. Regular belt-tension checks keep efficiency high and prevent premature wear.

Highlights

  • Quick-detachable bore speeds pulley changes
  • Two grooves match A, B, 4L, 5L, AX, BX belts
  • 4 in B-pitch diameter handles higher torque
  • Split-taper bushing locks securely to shaft
  • Ready-to-install new unit cuts downtime

Specifications

TypeSheaves & Pulleys

Questions about this item

Does the 2BK100 pulley include the Quick Detachable bushing or must it be purchased separately?

The 2BK100 is a two-groove V-belt sheave designed for a Quick Detachable split-taper bushing; the bushing itself is not included and must be bought separately to match the required shaft size.

Which belt sizes does the 9.4-inch B pitch diameter suit compared with the 9-inch A pitch diameter?

The 9.4 in B pitch diameter accommodates B and BX belts, while the 9 in A pitch diameter accommodates A and AX belts; both sizes also accept 4L and 5L fractional belts respectively.

How does the 9.4-inch pitch diameter affect speed ratio when the 2BK100 is mounted on a motor shaft?

With a 9.4 in B pitch diameter the sheave will drive or be driven at a speed ratio proportional to that diameter; a larger mating sheave reduces output speed and increases torque, while a smaller one does the opposite.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.