Specification Brand : Sinoblu BulletPoint1 : Size:D25mm x L30mm/0.98inch x 1.18inch, Bore Diameter: 04mm to 10mm / 0.16inch to 0.39inch BulletPoint2 : Material: Made of aluminium alloy material, light, anti-oxidant, and anti-corrosive, delicate CNC cut with outstanding appearance, high precision fine workmanship,long service life BulletPoint3 : Feature: Screw Type(Coiling Clamping),They are not easy to loosen,Main Color: Silver tone BulletPoint4 : Function: Provides torque transmision and alignment, Cost effective coupling design BulletPoint5 : Widely Used: Used for transmit motion and widely used in DIY model such as small CNC machines, 3d printer Z shaft coupling , car or boat etc. as connector for different parts as joint connector Color : Silver ExternallyAssignedProductIdentifier : 9423076121744 ExternallyAssignedProductIdentifier1 : 0608526072688 ExternallyAssignedProductIdentifier2 : 608526072688 ItemName : Sinoblu Shaft Coupler Connector D25 x L30 04mm to 10mm Bore Rigid Coupling Stainless Steel Rigid Couplings for 3D Printers ItemPackageDimensions_Height : 3 centimeters ItemPackageDimensions_Length : 4 centimeters ItemPackageDimensions_Width : 4 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : set-screw-couplings Manufacturer : Sinoblu Material : Aluminum ModelNumber : NIZUUONEdnbeycv78g NumberOfItems : 1 NumberOfPieces : 1 PartNumber : HC-JL-GX-2530-04-10 ProductDescription : [ and Dependable] Professional manufacturing ensures high performance and strong reliability, making the shaft coupler motor connector to use. [Easy Installation] The 4mm flange shaft coupling simplifies the assembly process by conveniently attaching robot wheels and mechanisms to motor shafts. [ Construction] Made of aluminum alloy, the 4mm flange shaft coupling ensures durability and reliability in various applications. [Compatible with Omni Wheels] Specifically designed for omni 60mm aluminum wheels (14145), providing a secure connection between the wheel and the motor. [Secure Fastening] Equipped with a stainless steel hex socket set screw, this coupling guarantees a tight and secure fastening of the motor to the hub, preventing any wobbling or detachment during .