INA rolling bearings is precision components, use should be very careful. Even high quality bearing the INA, if use undeserved, also won't get the expected effect.

INA bearing use of the note as follows.

Keep INA bearing and its surrounding environment clean
Even if is invisible to the tiny dust, also can give INA bearing any adverse effects. So, to keep clean around, make the dust will not invading INA bearing.

Careful to use.

In use to INA bearing strong impact, will produce the scars or impress, cause accidents. Serious when, can cause crack, fracture, must take note.
Use INA bearing special tools.

Must use the specialized tools, not optional alternative.

Avoid INA bearing rust.

Operation INA bearing, hands sweat will cause the rust. To pay attention to use clean hand operation, try to bring gloves, pay attention to corrosive gas.

2. Installation

INA bearing installation is correct, directly affecting the precision bearings use, life and performance. Therefore, design and assembly department for the installation of the INA bearing to fully research, according to the standard for the homework. Homework standard projects often are as follows:

Cleaning INA bearing and relevant parts and components

Check the size of the relevant parts and precision
installation

INA bearing after installation check

Fill lubricant

Hope in the installation, and then opens INA bearing packaging. General grease lubrication, not to clean bearing, direct filling grease. Oil lubrication, generally don't clean, but, with the high speed with INA instrument or bearings, want to use clean oil to clean, remove coated in the INA bearings rust-proofing agents. Remove rust INA bearing, easy to rust, so can't placed at will.
Moreover, already sealing grease into the INA bearing, not to clean use directly.

INA bearing installation way, for bearing structure, cooperate, conditions and different, because generally more for axis rotation, so inner circle over surplus to cooperate. Cylindrical holes INA bearing, multi-purpose pressed into the press, or hot charging method. Cone hole occasions, direct fixed in the tapered axis, or with tight set set of installation.

Installation to INA housings, used more clearance fit, outer ring had surplus quantity, usually with pressed into the press, or use after cooling method of installation and cold. With dry ice for cooling agent install occasions cold, moisture from the air will be condensed in the surface of the bearing. So the need to take measures against rust.

3. Running check

INA bearing installation ends, in order to check for installation is correct, want to undertake operation inspection. Small machine can rotate by hand to confirm whether it rotate smoothly. Check for foreign projects, scars and creasing and cause operation not free, because of installation is bad, the installation seat processing bad and produce torque is not stable, because clearance is too small, installation error, seal and cause excessive torque friction, and so on. If there is no exception may start power operation.

Large mechanical can't manual rotation, so start immediately cut off after no-load power, mechanical idling, examined for vibration and noise, rotating parts if there is contact, and so on, make sure no abnormalities, into power operation.

Dynamic operation, and low no-load from beginning, slowly, to improve conditions for the rating of the operation. The test run in to check the matters, whether to have abnormal sound, INA bearing the change of the temperature of the lubricants, leakage or color change etc. If find unusual, shall be immediately suspend operation, and check the mechanic and, when necessary, to dismantle the bearing inspection.

INA bearing temperature, general but according to the external temperature speculate that the bearing. But use of oil hole direct measurement of the temperature of the INA bearing outer ring is more accurate. INA bearing temperature, from the operation began gradually raised, usually 1 ~ 2 hours temperature stability. If INA bearing installation is bad, the temperature will rise sharply, the abnormal high temperature. The reason such as lubricants INA bearing clearance too much, too little, installation bad, sealing device too friction. High speed rotating occasions, INA bearing structure, the choice of the ways of lubrication error, etc is the reason.

INA bearing rotation sound check stethoscope, etc, have strong metal noise, different sound, irregular sound abnormal for details. The reasons are as bad lubrication, shaft or INA precision bearing bad, bearing damage, foreign bodies, invasion, etc.

4. Remove

In the preventive maintenance, the need to remove INA bearing. After removal, if want to continue to use or still need to check the investigation, remove to be as careful and installation. Note no damage to the bearing and parts, especially remove interference with the bearing, the operation is difficult, so in the design phase prior to consider to facilitate the removal. According to the need to remove the tool design is also very important. Remove, according to drawing method, order, remove the INA bearing with conditions of investigation, in order to remove the work smoothly.




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