... alloy steelMachining precision of gearsaccurate grinding, 6~5 GradeLubricating oilwithout oil.Heat treatmenttempering, cementiting, quenching,etc.Brand of bearingsHRB,LYC, ... ZWZ,NSK or other brandBrand of oil sealNAK or other brandNoise (MAX)60~68dB Temp. rise ... (MAX)40°CTemp. rise (Oil)(MAX)50°CVibration≤20µmFor more parameters and dimensions, please ...