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Gray cast iron 383B sheave, 3 groove, 4.15 inch OD

Tb Wood'S

Tb Wood'S 383B Quick Detachable 3 Groove 4.15" OD Sheave

SKU CH-P30S-WXQK0

Cast-iron V-belt sheave with quick-detachable bushing accepts 4L, 5L, A, AX, B and BX belts at 3.4 in and 3.8 in pitch diameters

  • TypeSheaves & Pulleys
  • Cast iron construction ensures long service life
  • Quick-detachable bushing allows fast belt changes
  • Three grooves support multiple belt profiles
  • 15 in outside diameter fits standard drives
  • Compatible with A, B, 4L and 5L belt sizes

383B Quick Detachable Sheave

The Tb Wood'S 383B is a cast-iron V-belt sheave designed for power-transmission drives that use a quick-detachable bushing. It suits maintenance teams and machinery builders who need rapid pulley changes without specialized tools.

4.15" OD with A and B belt pitch

The 4.15-inch outside diameter provides a 3.4-inch pitch diameter for A, AX, 4L belts and a 3.8-inch pitch for B, BX, 5L belts. It does not support 3V, 5V, C or CX belt profiles, so drives requiring those sections must use a different sheave.

Quick-detachable bushing mount

The hub accepts a standard quick-detachable bushing with a 1/2-inch to 1-5/8-inch bore range, allowing the sheave to fit various shaft sizes without reboring. This frees up installation time and simplifies alignment on existing drive systems.

Highlights

  • Cast iron construction ensures long service life
  • Quick-detachable bushing allows fast belt changes
  • Three grooves support multiple belt profiles
  • 15 in outside diameter fits standard drives
  • Compatible with A, B, 4L and 5L belt sizes

Specifications

TypeSheaves & Pulleys

Questions about this item

Will the 383B sheave's 3.4-inch A-belt pitch diameter align with the A-section pulley already on my motor shaft?

The 383B provides a 3.4-inch pitch diameter for A and AX belts and a 3.8-inch pitch diameter for B and BX belts, so it will align with an existing A-section pulley of the same pitch diameter.

How can I confirm the 4.15-inch OD sheave is seated correctly on the QD bushing after installation?

Tighten the QD bushing cap screws to the manufacturer's torque value; the sheave hub should sit flush against the bushing flange with no axial wobble when rotated by hand.

Does the 383B come with the Quick Detachable bushing and mounting hardware, or must I order the bushing separately?

The 383B sheave is sold without a QD bushing; you must purchase a compatible QD bushing with a 1/2-inch to 1-5/8-inch bore range separately.

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