TB Wood's 642B 6.4X2B-SDS 2 Two Groove V-Belt Sheave

Description:

The TB Wood's 642B 6.4X2B-SDS 2 Two Groove V-Belt Sheave is used in industrial power transmission systems to efficiently transmit mechanical power between rotating shafts using classical A and B section V-belts. Commonly installed in conveyors, pumps, compressors, fans, blowers, HVAC equipment, and other belt-driven industrial machinery. Maintenance teams, OEMs, and system integrators use this two-groove V-belt sheave for equipment replacement, drive system maintenance, power transmission upgrades, and new machinery installations.

Applications:

The TB Wood's 642B 6.4X2B-SDS 2 Two Groove V-Belt Sheave is commonly used in industrial automation environments including conveyor drives, pump and compressor systems, HVAC equipment, material handling machinery, agricultural equipment, and manufacturing production lines where reliable power transmission, smooth belt operation, and efficient torque transfer are essential. Its QD bushing design enables quick installation and secure shaft mounting in demanding industrial applications.

Technical Specifications:

• Manufacturer: TB Wood's (Regal Rexnord)
• Model / Part Number: 642B (6.4X2B-SDS)
• Product Type: Two Groove V-Belt Sheave
• Product Family: Classical Sheave
• Belt Section: A, B, 4L, 5L
• Number of Grooves: 2
• Outside Diameter: 6.75 in.
• Datum Diameter: 6.40 in.
• Pitch Diameter: 6.81 in.
• Material: Cast Iron
• Construction: Plain
• Bore Type: Quick Disconnect (QD) Bushing
• Bushing Series: SDS
• Bore Range: 1/2 in. to 1-15/16 in. (with compatible SDS bushing)
• Face Width: 1.75 in.
• Hub Projection: 0.69 in.
• Length Through Bore: 1.31 in.
• Overall Length: 1.75 in.
• Maximum Speed: 3,710 RPM
• Balance: Standard, Single-Plane Balance
• Weight: 8.0 lb
• Application Environment: Industrial power transmission systems

Common Replacements:

• TB Wood's 642B
• Martin 2B64SDS
• Browning 2B64SDS