1, INA bearing types of options: INA bearing model is commonly used by the user's technical personnel according to the product of form a complete set of conditions and the load of INA bearings.
Business people mainly learn the user's actual load is consistent with the selected INA bearings, if INA bearings can not meet the use requirements, should suggest customer re-election model as soon as possible, but unless special products on the choice models generally do not have what problem.
2, INA bearing clearance choice: user when buying INA bearings generally just let us know in what type, grade, rarely of INA bearings clearance request, business people must ask INA bearing conditions of use, which the INA bearing rotating speed, temperature, fit tolerance are directly related to the choice of the INA bearing clearance.
Generally under 3500 RPM speed motor mostly adopts CM clearance, such as high temperature and high speed motor, require the use of relatively large clearance.
INA bearing clearance after assembly will rise because of the inner hole and cylindrical reduction and lead to reduce, the reduction of clearance = interference quantity x 60% (
Except the INA bearing chamber is aluminum)
。
Such as INA bearing clearance is zero before assembly.
01 mm, interference when assembling the quantity to zero.
01 mm, INA bearing assembly after the clearance of 0.
004mm。
INA bearings in zero clearance in theory when the noise and life are the best state, but in actual operation considering the problems such as temperature, INA bearing clearance to 0 after assembly.
002mm-
0.
004 mm is better.
3, the choice of grease: the choice of grease is generally according to INA bearing rotating speed, heat resistance, noise requirement and select starting torque, etc. That requires business personnel to the performance of a variety of oils and fats to be understood.
The choice of 4, INA bearing seal type: INA bearing lubrication can be divided into oil lubrication and grease lubrication.
Oil lubrication INA bearings are generally choose form INA bearings, grease lubrication INA bearings generally choose dust cover or rubber seal seal.
Dust cover suitable for high temperature or the use of good parts, seal two points contact seal and non-contact seal and contact seal dustproof performance is good but the starting torque, the sealing type starting torque is small, but there is no contact sealing performance is good.
INA bearing in motor vehicle INA bearings, home appliances, motorcycle INA bearings, INA bearing the INA bearing industry professional care motor manufacturing, make optimal INA bearing noise and life.
INA bearing type, type and size is varied.
To play the expected performance of mechanical device select the most appropriate INA bearing is very important.
For selected INA bearings, many will need to analyze, study from different angles, the choice of INA bearings program, there is no special specifications, but generally as follows: (
1)
Master the mechanical device and INA bearing conditions (such as the use of
2)
Clear the requirement of INA bearings (
3)
Selected INA bearing type (
4)
Selected INA bearing configuration mode (
5)
INA bearings selected size (
6)
Selected INA bearing specifications (
7)
INA bearings installation method INA bearings selected correctly grasp the conditions of use and environmental conditions of INA bearings in the use of machinery parts and conditions of use and environmental conditions are suitable the premise of INA bearings.
, need to get data and information on the following aspects: (
1)
Mechanism of function and structure,
2)
The use of the INA bearing parts (
3)
INA bearing load (
Size, direction)
(
4)
Rotation speed,
5)
Vibration, shock,
6)
INA bearing temperature (
The surrounding temperature, temperature)
(
7)
The surrounding atmosphere (
Corrosion, clean, lubricate)
The choice of the ways of INA bearings configuration usually, the shaft is two INA bearings in the radial and axial support, at this point, called the INA bearing on one side of the fixed side INA bearings, it bear radial and axial load, a fixed axis and the relative axial displacement between the INA bearing box.
Call the other side free side, only bear radial load, axial relative movement can to solve due to temperature change axis telescopic part of the topic and the installation of interval error of INA bearings.
