Flexible Shaft Couplings, Clutches and Collars Section Contents

Product Overview Introduction to the range In many cases machine designers give limited thought to the shaft coupling. They devote their time to the more expensive components, overlooking the fact that the performance of a machine is only as good as the connections of its shafts. Reliance is fully aware of the importance of the shaft coupling and that they are often a critical part of the drive system. The Reliance range of shaft couplings has been carefully designed and tested to provide trouble free operation over many millions of cycles. Couplings and Collars Perfect alignment is not practical...

Product Overview Bellows Maintenance free zero-backlash bellows couplings are available with three construction options: for highest accuracy, nickel bellows; for torque transmission, stainless steel bellows; and where space is restricted, bronze bellows are available down to 12 mm outer diameter. Shaft fixing options are both set screw and clamp for the stainless steel and nickel bellows options, with the brass bellows option available in clamp type only. A number of different options of flexible disc couplings are available, based on both single and double disc spring construction. Please note...

Product Overview Bellows - High accuracy, light duty. Maintenance free. Flexible disc spring - Ideal for low torque applications requiring accuracy. Both external and internal hubs available. Oldham - Large offset, designed to separate for assembly. Electrically insulating disc. Membrane - Light duty, with an insulating fibreglass reinforced centre. Compact overall length. Zero backlash. Curved jaw - Shock absorbing, low cost general purpose coupling, ideal for reducing torque ripple. Spiral beam - Universal one piece coupling. Aluminium and stainless steel versions available. Radial tooth -...

The couplings featured in this catalogue have been carefully selected to accommodate varying degrees of shaft misalignment whilst offering minimum distortion of rotation. No one coupling provides a universal solution but the selection table below summarises the salient performance features for ease of comparison. Full details for each coupling can be found on the product pages, with further technical information on pages T8-1 to T8-4. If you require technical support please contact us to dicuss your application and we will be happy to help you select an appropriate coupling. Comparative star...

Product Overview Reli-a-Flex® Couplings Reli-a-Flex®, specifically designed and manufactured by Reliance to: · Improve system accuracy The Reli-a-Flex® coupling provides excellent kinematic transfer of motion with high torsional stiffness, zero backlash and constant velocity. · Extend system life Couplings and Collars The Reli-a-Flex® coupling introduces negligible radial and axial bearing loads, extending system life. The range of Reli-a-Flex® flexible shaft couplings Short or Long • RCS type (short) where space is limited • RCL type (long) where greater parallel offset and greater accuracy...

Reli-a-Flex® Couplings Product Overview Picture perfect scanning with Reli-a-Flex® coupling Prior to the introduction of the Reli-a-Flex® coupling slight variations in the speed of the CCD element caused errors when trying to capture high resolution images. These errors manifest themselves as a colour registration defect, which resulted in an unacceptable banding effect across the image. Although these errors were small (typically 3.0 microns) they could easily be detected by the naked eye. The cause of these errors was identified as the flatbed drive system. Introduction of a Reli-a-Flex® coupling...

Micro Reli-a-Flex® Couplings All dimensions in mm General tolerances ±0.13 mm Material: Aluminium alloy grade 7075-T6 Finish: Alocrom 1000 Associated Products Shafts: page 11-2 Bearings: page 12-1 Leadscrews: page 7-1 Intelligent motors: page 2-2 RCL (long type) RCS (short type) Part number selection table Example Part No:- Basic Part No RCS (short) Standard Bore Sizes ØB1 and ØB2 (bore tolerance +0.010/-0.000) Fitted Screw Maximum shaft intrusion when fitted = E+2 mm. * Coupling fitted with stainless steel slotted head set screws. Note: bores may be left unalocromed. Product options • • • •...

Micro Reli-a-Flex® Couplings Technical specification Misalignment Radial Compliance Parallel Angular Axial microns/N mm deg mm Specifications vary according to bore size. For exact figures, please enquire. 1 Typical torsional stiffness. Torque and speed capacity Basic Part No (short) Typical Torque Capacity Reversing Non Reversing Peak Nm Nm Nm Specifications vary according to bore size. For exact figures, please enquire. Technical support • Zero backlash, reliable one-piece construction • Unique design maximises torsional stiffness without inducing high bearing loads • Minimal velocity and positional...

Reli-a-Flex® Precision Couplings Set Screw Type 3 - 20 mm Bore All dimensions in mm General tolerances ±0.13 mm Material: Aluminium alloy grade 7075-T6 Finish: Alocrom 1000 Associated Products Shafts: page 11-2 Bearings: page 12-1 Leadscrews: page 7-1 Intelligent motors: page 2-2 RCL (long type) RCS (short type) Couplings are chambered for ease of assembly and fitted with stainless steel screws. Part number selection table Example Part No:- Basic Material Size Part No Standard Bore Sizes ØB1 and ØB2 (bore tolerance +0.020/-0.000) Maximum shaft intrusion when fitted = E+2 mm. Note: bores may be...

Reli-a-Flex® Precision Couplings Set Screw Type Technical specification Misalignment Radial Compliance Parallel Angular Axial microns/N mm deg mm Basic Material Part No Specifications vary according to bore size. For exact figures, please enquire. 1 Typical torsional stiffness. Torque and speed capacity Basic Part No Typical Torque Capacity Reversing Non Reversing Peak Nm Nm Nm Specifications vary according to bore size. For exact figures, please enquire. Technical support • Zero backlash, reliable one-piece construction • Unique design maximises torsional stiffness without inducing high bearing...