Specification Brand : HARFINGTON BulletPoint : 91-118 099-91 BulletPoint1 : Size - MB640 outer girth; 6mm / 0.24" top width; 4mm / 0.16" thickness. BulletPoint2 : Material - Industrial sewing machine v-belt are made of PU material, high-temperature resistance, wear resistance, corrosion resistance, and high coefficient friction. BulletPoint3 : Features - To link two or more rotating shafts to transmit power in a drive system. Even load distribution on belt drives and good wear resistance. BulletPoint4 : Applications - Polyurethane v-belt are suitable for old-fashioned household electric sewing machines, overlock machines, cover hem machines, etc. BulletPoint5 : Notice - Confirm the size before ordering. Accurate measurement of v-belt length should be done with a belt measuring tool or a soft ruler, not a steel ruler. The width and thickness of the belt should also be measured to confirm the type of belt. Color : Orange CompatibleDevices : Sewing Machine DriveSystem : Phillips ExternallyAssignedProductIdentifier1 : 0741025400405 ExternallyAssignedProductIdentifier2 : 741025400405 ItemName : HARFINGTON MB Series Standard Sewing Machine Belts MB640 Motor Triangle V-Belt with Single Tooth for Old Fashioned Household Electric Sewing Machine ItemPackageDimensions_Height : 17.8 centimeters ItemPackageDimensions_Length : 2.2 centimeters ItemPackageDimensions_Width : 8.3 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : sewing-machine-parts Manufacturer : HARFINGTON Material : PU MetalType : Stainless Steel NumberOfPieces : 20 PartNumber : hta230728hh000497 ProductDescription : Made of PU material, high-temperature resistance, wear resistance, corrosion resistance, and high coefficient friction. To link two or more rotating shafts to transmit power in a drive system. Even load distribution on belt drives and good wear resistance. Proper belt tension and pulley alignment should be maintained during operation. Suitable for old-fashioned household electric sewing machines, overlock machines, cover hem machines, etc. Notice: Confirm the size before ordering. Accurate measurement of v-belt length should be done with a belt measuring tool or a soft ruler, not a steel ruler. The width and thickness of the belt should also be measured to confirm the type of belt.