4B250E

This 4B’S sheave uses E QD bushing, is directly interchangeable with other manufacturers and is manufactured in accordance with ARPM Standard for safe operation. it is made using a high strength cast iron, is phosphate coated, painted, and balanced at the factory. Using the high-strength cast iron grade that we do offers a higher tensile strength and is more wear resistant than the more commonly used grades.

• Size: 4B68SD
• Bushing Type: SD
• Bore Range: 1/2″ – 2″
• Type: A
• Pitch Diameter (B/ 5L): 6.8″
• Pitch Diameter (A/ 4L): 6.4″
• Outside Diameter (O.D.): 7.15″
• Dimension (E): 21/32″
• Dimension (F): 3-1/4″
• Dimension (L): 1-13/16″
• Dimension (M): 25/32″