Specification Brand : HARFINGTON BulletPoint1 : Size - Aperture Diameter: 5mm; Outer Diameter: 60mm; Overall Thickness: 18.5mm; Groove Width: 7mm; Groove Depth: 4.5mm; Step Thickness: 8.5mm; Step Diameter: 35mm; Applicable Belts: 6mm PU round belt. BulletPoint2 : Material - The single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation. BulletPoint3 : Usage - First, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right. BulletPoint4 : Application - Silver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc. BulletPoint5 : Note - A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys. BulletPoint6 : 【Fit models】959P3 Washer pulley kit fit MWN311SP111TW06 NWNNX2SP125MW01 NWNSX2SP123MW01 NWT721M1126 NWT811N5422 NWT911N5422 NWTF21M1126 NWTF21N1126 DWN412SP111CW01 DWN432SP113CW04 HWLX21N1102 HWNBC2PP112TW01 HWNBC2PP113TW01 HWNBE2SP112CW01 HWNBX2SP113FW01 HWNBY2SP112CW01 HWNKC2SP116TW01 HWNKX2SP115CW01 HWNLY2SP112CW01 HWNMN2PP115TW01 HWNMN2SP115TW01 HWNNE2AP113CW04 HWNNE2HP116CW01 HWNSX1PP112TW01 HWNSX2PP112TQ01 HWNSX2SP112CW01 HWNZC2SP115TW01 HWT021N1102 HWT111N1102 HWT121M1123 HWT221N1127 HWT921N1127 HWTB21N1102 HWTR21N1102 HWTT21N1102 HWTX21N1102 HWTZ20M HWTZ20N BulletPoint7 : 【Fit models】959P3 kit fit BWT820 BWT920 BWT820N1102 BWT920N1102 YWN311PP111CW01 YWN321SP541RW01 ZWN311SP111CW01 ZWN412SP111CW01 ZWN432SP111CW01 UWT021M UWT021N UWT821 UWT821*N1102 SWL520N SWL521N SWLB20N SWLB21N SWLF20N SWLF21N SWLT20N SWLT21N SWLY20N SWLY21N SWT111 SWT911 SWTX21 JWT110M JWT110N JWT810N5400 JWT820N JWT910N JWT920N PWNBC2PP112TG02 PWNBC2PP113TG02 PWNBC2PP115TG02 PWNBX2PP115CW02 PWNBX2PP115TG02 CWN311SP111CW01 CWN412SP111CW01 Color : Silver Tone ExternallyAssignedProductIdentifier1 : 0601818726238 ExternallyAssignedProductIdentifier2 : 601818726238 GpsrSafetyAttestation : 1 IncludedComponents : 959P3 Idler Kit with Smooth Belt ItemName : HARFINGTON Single Groove Pulley 5mm Fixed Bore 60mm Outer Diameter Aluminum Alloy with Hex Wrench for Drilling Machine 6mm PU Round Belt ItemPackageDimensions_Height : 11.9 centimeters ItemPackageDimensions_Length : 2.3 centimeters ItemPackageDimensions_Width : 9.8 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : round-belt-pulleys Manufacturer : HARFINGTON Material : Aluminum Alloy ModelName : 959P3 Idler Kit ModelNumber : EEEFAYAFU-8MM-XL50T-11MM NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : hta230820hh000353 PowerSourceType : gasoline-powered ProductDescription : The single-groove pulley is made of aluminum alloy, with small precision error, stable operation, high-speed rotation without shaking, effectively suppressing transmission noise and fluctuations, and improving the stability of the belt operation. Silver aluminum alloy single slot is suitable for motors, micro spindles, model transmission design, motor shaft transmission, etc. First, you need to measure the diameter of the shaft to be installed. For example, if the diameter of the shaft is 8 mm, the inner diameter of the pulley should be 8 mm, so that the installation will be just right. Notice: A belt pulley with an outer diameter of 16mm is not suitable for use together with other sizes of belt pulleys.