Installation Method of Single Row Deep Groove Ball Bearing Assembly

Although single row deep groove ball bearing components can be a simple installation on the shaft staying the same, and can be up and running immediately, however, if errors occur during installation, early damage is possible generally as rolling single row deep groove ball bearings. Therefore, single row deep groove ball bearing components must be carefully installed in the early time. At the time of installation, you must be careful not to give too much impact, be sure to pay special attention to the installation point, and then start the installation.

In the cylindrical hole single row deep groove ball bearings occasion, the inner ring and shaft, for installation purposes, generally coordinate with a clearance fit. However, in the necessary operation of high-precision and high-speed operation, or a heavy load or withstanding shock loads occasions, the inner ring and shaft combines for an interference fit.

In taper hole single row deep groove ball bearings occasion, because they are installed using an adapter sleeve, even if error of axis dimensions is slightly larger,there will be no problem. Again, in a lot of axial loads occasions, use the stepped shaft as far as possible, contact the inner ring of single row deep groove ball bearings with cylindrical bore with the ledge of stepped single row deep groove ball bearings to used.

First remove the connecting bolts when removing single row deep groove ball bearings. As the thread surface deposits a layer of grease, corrosion products and other sediments, the bolt is not easy to remove, particularly for Severe corrosion bolts, and removal is difficult. You must choose the right tools to disassemble bolt, because the outer hexagonal or hexagon of bolt has been slipping to damage so that removal becomes more difficult. For bolts has rust or with large number of grease, spray at the joining of bolt and nut with solvents (such as rust remover), let solvent goes into thread, so that they are easily removed.

In the removal process of single row deep groove ball bearings, the most difficult job is to remove wheel from the shaft. For key wheels, generally use three-pin puller or four-legged puller for disassembly. Puller should go with the dimensions of wheels, combination right angles hook of every feet of puller with the wheel back side must be suitable, slippage will not occur when putting forth strength. This method is only for relatively wheel removal of small interference fit, for wheels with larger interference fit, often use heating method, or together with hydraulic jacks to demolish.

In the removal process of single row deep groove ball bearings, the most difficult job is to remove wheel from the shaft. For key wheels, generally use three-pin puller or four-legged puller for disassembly. Puller should go with the dimensions of wheels, horses tied to the feet at right angles with the wheel back side with suitable, slippage will not occur when the force imagined. This method only for relatively small wheel removal of interference, interference fit larger wheels, often using heating method, or together with hydraulic jacks to demolish.

Cleaning, cleaning up and assessing quality all parts of single row deep groove ball bearings is a extremely important work after these ball bearings removal. Assessment means that each of the parts and components after operation, compared to the present state of its size, shape, and material properties and component design with the established quality standards, determine which parts can continue to be used, which parts should be repaired, and which should discard and replacenew ones.

Single row deep groove ball bearings and tolerances

Single row deep groove ball bearings are particularly versatile. They are simple in design, non-separable, suitable for high and even very high speeds and are robust in operation, requiring little maintenance. Deep raceway grooves and the close conformity between the raceway grooves and the balls enable deep groove ball bearings to accommodate axial loads in both directions, in addition to radial loads, even at high speeds.

Single row deep groove ball bearings are the most widely used bearing type. Consequently, they are available from SKF in many executions and sizes:

–open basic design bearings
–sealed bearings
–ICOS® oil sealed bearing units
–bearings with snap ring groove, with or without snap ring
Other deep groove ball bearings for special applications, shown in the “Engineering products” and “Mechatronics” sections, include:

–hybrid bearings
–insulated bearings
–high temperature bearings
–bearings with Solid Oil
–sensorized bearings
–polymer ball bearings
The SKF product range also includes bearings with a tapered bore. This variant is not included in this catalogue. Information will be provided on request.

Tolerances

SKF single row deep groove ball bearings are manufactured as standard to Normal tolerances.

SKF Explorer single row deep groove ball bearings are produced to higher precision than the ISO Normal tolerances. The dimensional accuracy corresponds to P6 tolerances, expect the width tolerance, which is considerably tighter and reduced to

–0/–60 μm for bearings with outside diameter up to 110 mm
–0/–100 μm for larger bearings.
The running accuracy depend on the bearing size and corresponds to

–P5 tolerances for bearings up to a 52 mm outside diameter
–P6 tolerances for bearings above 52 mm up to 110 mm outside diameter
–Normal tolerances for larger bearings.
For bearing arrangements where accuracy is a key operational factor, some SKF single row deep groove ball bearings are also available with accuracy completely to P6 or P5 tolerance class specifications. The availability of these bearings should always be checked before ordering.

The tolerances for classes Normal, P6 and P5 are in accordance with ISO 492:2002.

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