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A, bearing the installation must install: bearing in a dry, clean environment conditions. Before installation should carefully check the shaft and the shell of the surface, convex shoulder with face, grooves and connection surface processing quality. All cooperate connection must be carefully cleaned surface and eliminate burr, casting unprocessed surface must be free sand.
Bearing before installation should use first gasoline or kerosene clean, dry after use, and provide good lubrication, bearing generally USES grease-lubricated, also can use oil lubrication. Adopt grease-lubricated, should choose without impurities, anti-oxidation, rust and extreme pressure properties superior grease. Grease filling quantity for bearings and bearing box volume, unfavorable and overmuch 30% to 60%. Take sealing structure of the double row circular cone roller bearings and pump shaft bearings has grease filling even better, the user can use directly, cannot clean again.
Bearing when installed, must end of the circumference of the rings on equal pressure, will be pressed into the collar, and shall not use Lang top tool directly face, avoid injury drumming bearing bearings. In over surplus quantity is smaller, can be in with the sleeve pinned under normal temperature, Lang face with the hi-tech head, through sleeve will knock sleeve into rings equilibrium pressure. If large quantities, can be made hydraulic installation. Pressure fashionable, should guarantee the end and the shell outer and inner circle platform shoulder end face and axial sets shoulder end compaction, are not allowed to have clearance.
When over surplus quantity is bigger, can use oil bath heating or inductor heating bearing method to install, heating temperature range for 80 ℃ - 100 ℃, the highest can't more than 120 ℃. Meanwhile, application nut or other appropriate methods to tighten bearing, in order to prevent bearing cools width direction to contract and make rings and shaft shoulder produce clearance
Single circular cone roller bearings installed last should undertake clearance adjustment. Clearance value should be based on different operating conditions and cooperate with the size of the surplus quantity is specific and affirmatory. When necessary, determined shall be tested. Double row circular cone roller bearings and pump shaft even bearing in factory has adjusted good clearance, when installation, don't have to adjust.
Bearings after installation should undertake rotation experiment first used in the axis, or bearing box, without exception, then to power without load, low operation, and then depending on the operation situation gradually improve speed and load, spin and testing noise, vibration and abnormal temperature,, should stop to run and inspection. Running test normal rear deliverables.
Second, bearing remove: bearing tear down to continue to use after when, should choose proper removal tools. Remove interference with rings, only will pull in the ring with, will never allow through the rolling body transfer remove force, or scroll body and groove can be crushed.
Three, bearing the use environment of: according to use parts and the using conditions and environment condition selecting size, accuracy, with appropriate bearing is the guarantee bearing life and reliability of the premise.
1, use parts: circular cone roller bearings is designed to withstand the in radial direction load primarily radial and axial load, usually in the combination of the two sets of bearing should be mainly used in pairs, the wheel hub, active before car ser-elektronik GMBH bevel gears transmission parts such as speed reducer.
2, allowing speed: in the correct installation, good lubrication environment, allow for bearing limit speed 0.3-0.5 times. In normal circumstances, 0.2 times for most appropriate limit speed.
3, allow gradient: circular cone roller bearings generally don't allow axis tilt relative shell hole, if there is no more than 2 tilt, the biggest routines.
4, allowed under normal temperature: the load, and lubricant has high temperature resistant performance, and abundant lubrication conditions, general bearing allows ℃ - in - 30 ℃ environmental temperature 150.
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| Product Model | Inside Diameter | Outside Diameter | Thickness |
| 7911CDT NSK | 55 | 80 | 13 |
| 7911A5DT NSK | 55 | 80 | 13 |