Model: S3M210; Belt Width: 10mm / 0., 39; Teeth Quantity: 70; Circumference: 210mm / 8., 27., Pitch: 3mm / 0., 12; Belt Thickness: 2., 2mm / 0., 09; Teeth Height: 1., 14mm / 0., 04. S3M Timing Belt - Super High Torque, *S3M Series | Mitsuboshi Belting | MISUMI Closed Loop Drive Belt STD 687-S3M Rubber Timing Belt 229 Teeth Linear Motion Timing Belt 100-S3M-210 | Synchronous Belt, Length (mm) 210, Pitch (mm) 3, Width (mm) 10, No of Teeth 70, Belt Type Endless, Closed Loop, Tensile Cord Fiberglass, Body Material Neoprene, Tooth Facing Nylon Fabric Fit for Torque transmission and Light Load ConveyanceThe various of reinforce cord ensure the running capability in the driving. is the leading supplier of OEM replacement parts. Let the belt experts get you what you need This kind of closed loop rubber timing belt has has strong anti-wear, good for power transmission, great for 3D printers and linear motion applications.