Specification Brand : Martin BulletPoint1 : Classical V-belt sheave fits widely available, classical profile V-belts suitable for use in many existing drive designs BulletPoint2 : Class 30 gray cast iron for resistance to wear and galling BulletPoint3 : D belt or cross section BulletPoint4 : Three grooves for multiple or banded belt use ExternallyAssignedProductIdentifier1 : 697950113623 ExternallyAssignedProductIdentifier2 : 0697950113623 ExternallyAssignedProductIdentifier3 : 00697950113623 ItemName : Martin 3 D 155 F Conventional QD Sheave, D Belt Section, 3 Grooves, F Bushing required, Class 30 Gray Cast Iron, 16.1" OD, 1541 max rpm, 15.5" Pitch Diameter ItemPackageDimensions_Height : 3.63 inches ItemPackageDimensions_Length : 16.1 inches ItemPackageDimensions_Width : 16.1 inches ItemPackageQuantity : 1 ItemTypeKeyword : taper-lock-locking-bushings Manufacturer : MARTIN Material : Cast Iron MaximumRotationalSpeed : 1541 rpm ModelNumber : 1215X13/16 NumberOfItems : 1 PartNumber : 3 D 155 F ProductDescription : PN: 4P3V45