Contents The SKF brand now stands for more than ever before, and means more to you as a valued customer. While SKF maintains its leadership as a high-quality bearing manufacturer throughout the world, new dimensions in technical advances, product support and services have evolved SKF into a truly solutions-oriented supplier, creating greater value for customers. 1 Foreword Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 Traditional connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 Product information About SKF FX Keyless...

SKF FX Keyless Bushings Introduction SKF FX Keyless Bushings are designed to secure gears, couplings and pulleys to a shaft using mechanical friction rather than using traditional keyways, splines or an interference fit. In general, the size of a shaft is dependant on a number of factors. If splines or keyways are cut into a shaft, the shaft is weakened and a larger-than-necessary shaft must be specified. If, however, the objective is to reduce shaft size, weight, machining costs and installation time while improving accuracy and reliability, SKF FX Keyless Bushings are an excellent solution....

About SKF FX Keyless Bushings Minimum hub diameter calculation SKF FX Keyless Bushings are designed to create an interference fit with uniform contact pressure on shafts and components that must be fixed to the shaft. The design offers true zero backlash installation and has none of the problems associated with keyways. SKF FX Keyless Bushings make it easy to mount components with a cylindrical (non-tapered) bore to standard, plain shafting and can even be mounted over an existing keyway if necessary. These bushings, which can accommodate wide component tolerances, can considerably reduce machining...

Table 4 Ratio selection chart for minimum hub diameter Hub surface Shape pressure factor Material yield strength, s [N/mm2] s = 150 s = 180 s = 200 s = 220

SKF FX Keyless Bushings models FX 10 • Medium torque • Not self-centering • Medium surface pressures • No axial hub movement • H11 – h11 tolerances FX 20 • Medium torque • Self-centering • H8 – h8 tolerances FX 51 • Medium torque • Reduced length • High surface pressures • No axial hub movement • H8 – h8 tolerances FX 30 • Low torque • Medium surface pressures • Taper rings only FX 52 • High torque • Self-centering • Low-medium surface pressures • H8 – h8 tolerances FX 40 • High torque • Self-centering • Medium surface pressures • H8 – h8 tolerances FX 60 • Very high torque • Self-centering •...

FX 90 • Low–medium torque • Short length • Self -centering • Low surface pressures • H8 – h8 tolerances FX 350 • Low-medium torque • Short length • Self-centering • Low surface pressures • H8 – h8 tolerances FX 120 • Medium torque • Reduced length • Medium self-centering • High surface pressures • Reduced length • H8 – h8 tolerances FX 400 • High torque • Self-centering • Low surface pressures • No axial hub movement • H8 – h8 tolerances FX 130 • Low-medium torque • h8 tolerances FX 140 • Medium torque • Reduced length • High surface pressures • H8 – h8 tolerances

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible axial force Ft

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible axial force Ft

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt Clamp screws Weight Designation

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt Clamp screws Weight Designation

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt Clamp screws

Pressure Shaft Hub surface surface Pw Pn Clamp screws Tightening Nut torque size Ms Performance Transmissible Transmissible axial force torque Ft Mt Nm

Pressure Shaft Hub surface surface Pw Pn Clamp screws Tightening Nut torque size Ms Performance Transmissible Transmissible axial force torque Ft Mt Nm

Pressure Shaft surface Pw Performance Transmissible torque Mt Clamp screws

Double diameter* Performance Transmissible Transmissible axial force torque Ft Mt Clamp screws * Double diameter versions are available upon request: contact SKF for detail

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt Clamp screws

Performance Transmissible Transmissible axial force torque Ft Mt Clamp screws Weight Designation

Performance Transmissible Transmissible axial force torque Ft Mt Clamp screws Weight Designation

Performance Transmissible Transmissible axial force torque Ft Mt Clamp screws Weight Designation

Performance Transmissible Transmissible axial force torque Ft Mt Clamp screws Weight Designation

Pressure Shaft surface Pw Performance Transmissible axial force Ft Clamp screws

Pressure Shaft Hub surface surface Pw Pn Performance Transmissible Transmissible axial force torque Ft Mt Clamp screws Weight Designation

SKF – the knowledge engineering company From the company that invented the selfaligning ball bearing more than 100 years ago, SKF has evolved into a knowledge engineering company that is able to draw on five technology platforms to create unique solutions for its customers. These platforms include bearings, bearing units and seals, of course, but extend to other areas including: lubricants and lubrication systems, critical for long bearing life in many applications; mechatronics that combine mechanical and electronics knowledge into systems for more effective linear motion and sensorized solutions;...