· NTN import bearing (ball screw support bearings) the Model BSB040072-T, bearing Model: BSB040072-T · Series: precision level universal combination angular contact thrust ball bearings and inner diameter: 40mm · outer diameter: 72mm · thickness: 15mm · NTNBSB040072- T bearing, size is the inner diameter of: 40mm outer diameter: 72mm, thickness: 15mm type: precision level universal combination angular contact thrust ball bearings, the price of 380 yuan per piece, ball screw bearing characteristics of high speed and high precision generally installed in pairs, linear guide bearings are mainly used to install some high-end precision equipment machinery; CNC machine tools platform ball screw support rail slider bearing can also be used: screw support bearings environmental protection equipment, cylindrical gear reducer, screw chiller machine, concrete pump truck, double girder cranes, and other fields. d 40 mm D 72 mm B 15 mm a 0 mm Da H12 62,5 mm da h12 49 mm ra max 1,1 mm rmin 1,1 mm m 0,128 kg Quality Ca 29500 N basic rated dynamic load, axial C0a 82000 N Basic static load rating, axial maximum axial force Fa max 21200 N dynamic nG Fett 3000 1/min greased speed limit nG? Limiting speed for oil lubrication l 40 1/min at least of Fv 2900 N preload Mr 115 Nmm friction torque Cua 7300 N Fatigue limit load, axial