NTN bearing nomenclature

The nomenclature of NTN bearing numbers indicate bearing type, dimensions, tolerances, internal construction, and other related specifications. NTN bearing numbers are compreised of a "basic number" followed by "supplementary codes."...

Date: 2018-07-18

classification and characteristics of NTN rolling bearings

NTN roller bearing construction Most rolling bearings consist of rings with raceway (inner ring and outer ring), rolling elements (either balls or rollers) and cage. The cage separates the rolling elements at regular intervals, holds them in place wi...

Date: 2018-07-17

Selecting SKF bearing size

The size of a SKF bearing must be sufficient to ensure that it is strong enough to deliver the required/expected life under defined operating conditions....

Date: 2018-07-06

FAG spindle bearings accuracy, tolerance

The main dimensions of the FAG spindle bearings. The dimensional tolerances of the bearings correspond to tolerance class P4, the running tolerances correspond to tolerance class P2....

Date: 2018-07-02

selecting SKF bearing type and arrangement

The second step of SKF bearing selection is to select bearing type and arrangement. Each SKF bearing type has characteristic properties that make it more or less suitable for use in a given application. This section provides information on what to co...

Date: 2018-06-06

SKF bearing selection - Performance and operating conditions

The first step of SKF bearing selection is to understand and document: the required performance the operating conditions and assumptions of them any other application prerequisites An application can set various requirements on the SKF bearing soluti...

Date: 2018-06-04

kaydon thin section bearings lubrication and maintenance

The lubricant in an anti-friction bearing serves to reduce friction and wear between moving parts, to dissipate heat, and to prevent corrosion of critical surfaces. Kaydon recommends the selection of the proper lubricant be based on an evaluation by...

Date: 2018-01-11

tolerances for thrust bearings

Tolerances for thrust bearings Nominal diameter Shaft washer Housing washer d, d2, D 1) Tolerance classes Tolerance classes Tolerance classes Normal, P6, P5 Normal P6 P5 Normal, P6, P5 t dmp, t d2mp t Vdsp, t Vd2sp t Si 2)3) t Si 2)3) t Si 2)3) t Dmp...

Date: 2018-01-09

kaydon thin section bearings selection

Type C: Radial contact thin section bearings The Type C Radial Contact ball bearing is a single-row radial ball bearing with extra deep ball grooves in both rings (groove depth = 25% of ball diameter). Normally this bearing is assembled by eccentric...

Date: 2018-01-03

Design of Shafts and Housings

Design of shafts and housings For optimum operation and performance - Accuracy of the shaft shoulder, Accuracy of the shoulder and fillet radii...

Date: 2017-12-18

Conditions of bearing rotation

he conditions of rotation indicate the motion of one bearing ring with respect to the load direction and are expressed as either circumferential load or point load Point load If the ring remains stationary relative to the load direction, there are no...

Date: 2017-12-18

Lubrication – Reducing friction

Lubricating a bearing with greases or oils stops direct metallic contact between the bearing components and the cage....

Date: 2017-12-18

bearing friction

The friction in a rolling bearing is made up of several components, see table below. Due to the large number of influencing factors, such as dynamics in speed and load...

Date: 2017-12-18

bearings life

The basis of the rating life calculation in accordance with ISO 281 is Lundberg and Palmgren's fatigue theory which always gives a final rating life....

Date: 2017-12-18

bearing operating life

The operating life is defined as the life actually achieved by the bearing. It may differ significantly from the calculated value....

Date: 2017-12-18

Selection of FAG bearing arrangement

The guidance and support of a rotating shaft requires at least two bearings arranged at a certain distance from each other. ...

Date: 2017-12-18

Bearing dimensions

The dimensions of bearings (bore, outer diameter, width) are internationally standardised....

Date: 2017-12-18

Bearing tolerances

The tolerances for the dimensions and running accuracy of bearings, Accuracy of rolling bearings, Accuracy classes of rolling bearings, Tolerances for tapered bores...

Date: 2017-12-18

Bearing internal clearance

Internal clearance is the distance which the two rings of a non-installed bearing can move when they are pushed in opposite directions, radial and axial clearance....

Date: 2017-12-18

Bearing tolerances symbols

The tolerance symbols and their definitions are provided in table as blow: Radial bearings inner ring, Radial bearings outer ring...

Date: 2017-12-18