Specification Brand : uxcell BulletPoint1 : Size: 310mm/12.2" Outside Circumference; 6mm/0.24" Top Width; 4mm/0.16" Height. BulletPoint2 : Material: Made of Polyurethane material, exceptional resistance to abrasion, chemicals, oil, and heat, and high coefficient friction BulletPoint3 : Applications: Polyurethane belts tend to have a longer service life compared to traditional rubber belts. Suitable for old-fashioned household electric sewing machines, overlock machines, small electric motors, and more. BulletPoint4 : Features: V Belt allows for improved power transmission efficiency and reduced slippage. BulletPoint5 : Notice: Proper belt tension and pulley alignment should be maintained during operation. Color : Orange ExternallyAssignedProductIdentifier : 8138147238658 ExternallyAssignedProductIdentifier1 : 0644191141212 ExternallyAssignedProductIdentifier2 : 644191141212 IncludedComponents : conveyor roller, wheels ItemName : uxcell 4pcs MB Series Standard Sewing Machine Belts MB-310 Motor Drive V Belt, 310mm / 12.2" Outside Circumference ItemPackageDimensions_Height : 0.59 inches ItemPackageDimensions_Length : 5.51 inches ItemPackageDimensions_Width : 3.94 inches ItemPackageQuantity : 1 ItemTypeKeyword : industrial-v-belts Manufacturer : uxcell Material : PU ModelNumber : a24012400ux1190 NumberOfItems : 4 NumberOfPieces : 12 PartNumber : a24012400ux1190 ProductDescription : Made of Polyurethane material, exceptional resistance to abrasion, chemicals, oil, and heat, and high coefficient friction. To link two or more rotating shafts to transmit power in a drive system. Even load distribution on belt drives, high load-bearing capacity, and excellent flexibility. V Belt allows for improved power transmission efficiency and reduced slippage. Polyurethane belts tend to have a longer service life compared to traditional rubber belts. Suitable for old-fashioned household electric sewing machines, overlock machines, small electric motors, and more. Proper belt tension and pulley alignment should be maintained during operation.