Bearing installation method and remove the method

Install the needle roller bearing, usually using auxiliary sleeve. At this time, the auxiliary roller or auxiliary sleeve hold needle don't fell out of the needle, journal with its own chamfering needle lift, as the needle roller bearing on the shaft neck slowly moving into, the auxiliary roller or auxiliary sleeve out slowly, until outfit to the job position. Auxiliary roller, the outer diameter of auxiliary sleeve should be smaller than shaft diameter 0. 1-0. 3mm。 Bearing installation, the surface coated with grease inside the bearing outer ring first, rely on tight inside surface needle ( In the last needle should be gaps) , then replace the journal of the roller bearing inner ring or auxiliary sleeve into the outer ring hole, and make it face alignment installed shaft end face or installed on the shaft bearing inner ring end face, and then use pressure on the press or hammer knock. Needle roller bearing and it can be installed, apply a thin layer of lubricating oil, the auxiliary sleeve diameter set into the bearing outer ring and the auxiliary sleeve and bearing outer ring form a circular hole, and then install needle in the annular aperture. After loading the needle, work with axial auxiliary sleeve will launch. For without inner ring or outer ring needle roller bearing, when installation, can be the first shaft hole or shell rolling surface coated with a thin layer of grease, and combine needle in close to on the installation position of grease. Finally a rolling needle stick shall be gaps, the size of the gap in the needle roller bearing on the circumference of a circle to 0. It is advisable to 5 mm. Can't work out the final hard packed into a needle, or less a needle, because hard packed, the bearing will be stuck can't rotate; Short-ship, clearance is too large, easy to cause bearing needle roller twist and break during operation. For only drawn cup needle roller bearing, due to the outer wall is thin, not needle bearing with a hammer knock installation, press pressure should be used. Because when hammer knock, uneven pressure, easy to produce local deformation make needle roller bearing outer ring. Knock knock force general law applies in the bearing inner ring, shielding room tapping force should not be added in rolling element bearings and keep on the shelf, this method is simple, but easily damaged bearings, when bearing, at the end of the shaft, use less than the copper rod of bearing inside diameter or other soft metal materials resist shaft end, lower bearing block, hammer knock gently, can be removed. Application of this method should pay attention to the position of the block placed properly, focus should be correct. Thermal method is used to remove the interference fit of bearing. First will be heated to 100 ℃ or so oil in oil pot pouring in to dismantle the bearing, after waiting for bearing ring heat expansion, can be used to pull pull the bearing. Push method with press thrust bearing, the work is stable and reliable, does not damage the machine and the bearing block rooms. Mechanical or hydraulic press with manual push, press push. Note: press focus should be on the center of the shaft, shall not be partial pressure. Pull method adopts special puller, remove, as long as the rotating handle, bearing will be slowly. Remove the bearing outer ring, pull two foot corners should open outward; Remove the bearing inner ring, with both feet should be inward, card on the bearing inner ring end face. Jiaxing bearing hardware co. , LTD. In production and sales of precision miniature bearing, small bearings and plastic bearings as the main business, always adhere to the 'good faith management, common development' concept, for decades, business development, has now become a miniature motor, artificial intelligence, unmanned aerial vehicles, computers, household appliances, medical equipment, instruments, sports equipment and other industries, and household hardware, automatic door, shower room, closet, doors and Windows pulley bearing supplier and other industries. If you want to learn more about bearing installation, welcome consultation: