Zero-backlash coupling SOFTEX® ES

torsionally flexiblecompactaluminum

Softex® torsionally flexible couplings are maintenance-free and offer excellent dynamic performance. Different elastomer hardnesses for the gear rings allow for higher torques with the same coupling size.

The drive couplings are available as Softex® FA flange couplings, as Softex® TL with a clamping sleeve, Softex® Split with a predetermined breaking point, and as the Softex® ES no backlash version.

The backlash-free couplings of the Softex® ES series are suitable as friction-fit, backlash-free shaft connections with low inertia, particularly for linear, positioning, or servo drives. Also available in a clamping ring version for spindle drives in machine tools.

Technical specifications

• Under initial tension no backlash shaft connection
• Triple axially pluggable version
• Simple blind mounting, no time-consuming screwings
• Small structural dimensions – low flywheel effects
• Maintenance-free, simple optical test
• Different elastomer hardnesses of the spiders
• Available for all standard shaft dimensions
• Finish bores with ISO standard H7, (clamping hub F7), keyway from ø 6 acc. to DIN 6885 sheet 1-JS9
• Hub materials: up to size 38/45 aluminum, larger sizes steel

Type 6.0

• Zero backlash shaft connection under high friction torque
• Suitable for servo motor applications, main spindle drives of tooling machines and heavy load of presses
• No imbalance caused by keyways or slotted clamping elements
• Smooth running with good stability even at 40 m/s peripheral speed
• Suitable for ATEX explosion protection applications
• Easy assembly by internal clamping screws
• ISO fit H7 up to ø 50 mm and ISO fit G7 over ø 50 mm
• Materials: Hub = aluminium / clamping ring = steel, both also available in steel S355J2

Type 6.0P

• High precision, zero backlash shaft connection under high friction torque
• Developed for high speed short and multi spindles for tooling machines (DIN 69002)
• Smooth running with good stability even at 75 m/s peripheral speed
• Also suitable for ATEX explosion protection applications (when considering the selection in accordance with the influence of high friction torques)
• Easy assembly by internal clamping screws
• Spiders with 98° SH A or 64! SH D incl. bore required
• ISO fit H6
• Hub and clamping ring made of 42CrMo4