Specification Brand : Import BulletPoint1 : 4" Diameter BulletPoint2 : Fits 7/8" Shaft BulletPoint3 : Single Groove Pulley BulletPoint4 : Features Dual Set Screws BulletPoint5 : Solid Cast Iron Construction Color : Gray ExternallyAssignedProductIdentifier1 : 0806372014849 ExternallyAssignedProductIdentifier2 : 806372014849 ItemName : BK40-7/8 BTS SHEAVE B Section 1 Groove ItemPackageQuantity : 1 ItemTypeKeyword : v-belt-pulleys Manufacturer : Import Material : Cast Iron ModelNumber : BK40-7/8 NumberOfItems : 1 PartNumber : BK40-7/8 ProductDescription : Cast Iron 4" Single Groove Pulley V Style B Belt 5L for 7/8" Keyed Shaft Masterdrive single groove 4" pulley for B / 5L belts. This is a high-quality cast iron pulley and is designed to fit a 7/8" keyed shaft and features dual set screws to ensure a completely secure fitting. Most pulleys that are similar to this only have one set screw, making them less reliable in many working conditions. This pulley is designed to be used with B Belts (also known as 5L Belts). You can use A Belts with this pulley; however, they will sit deeper in the grooves and reduce your pulley size. Specifications: 4" Diameter Fits 7/8" Shaft Single Groove Pulley Features Dual Set Screws Solid Cast Iron Construction Secure Reliable Performance Accepts B Also Known as 5L Belts ProductSiteLaunchDate : 2021-05-26T01:05:11.210Z