Description:_x000D_ This plum shaft coupler is made of high strength aluminum alloy, excellent bearing capacity, long service life. Widely used in shafting transmission of various mechanical devices, such as pumps, fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, aviation (helicopter), ship high-speed power transmission system, steam turbine, piston power mechanical transmission, etc._x000D_ _x000D_ Features:_x000D_ _x000D_ Made of high strength aluminum alloy, excellent bearing capacity, long service life. _x000D_ Need no lubrication, convenient and quiet to use. _x000D_ Stable and reliable performance, with good vibration damping, buffering and electrical insulation performance. _x000D_ Simple structure, small radial dimension, light weight, suitable for medium and high speed equipments. _x000D_ Widely used in shafting transmission of various mechanical devices, such as pumps, fans, compressors, hydraulic machinery, petroleum machinery, printing machinery, textile machinery, chemical machinery, mining machinery, metallurgical machinery, aviation (helicopter), ship high-speed power transmission system, steam turbine, piston power mechanical transmission, etc. _x000D_ _x000D_ Specification:_x000D_ Material: Aluminum alloy_x000D_ Type: Plum Coupling Shaft_x000D_ Nominal moment of force: 20N.m_x000D_ Allowable speed: 10000r/m_x000D_ Allowable moment of force: 10N.m_x000D_ Hole dia.(Optional): 8-8mm, 7-11mm, 10-10mm, 10-12mm, 11-11mm, 11-12mm, 12-12mm_x000D_ Size: Approx. 3*2.4cm / 1.2*0.9inch_x000D_ Weight: 27-29g_x000D_ _x000D_ Package Included:_x000D_ 1 x Plum Shaft Coupler_x000D_ _x000D_ Note: _x000D_ _x000D_ Due to the light and screen difference, the item's color may be slightly different from the pictures. _x000D_ Please allow 1-3cm differences due to manual measurement. _x000D_ Thank you for your kindly understanding.