Synchronous Ratcheting SIKUMAT® SA … with double rollers Advantages • High degree of consistency of limit torque over the duration of operation through double roller principle • Synchronous re-engagement after 360° • Torques up to 10 000 Nm • For shaft diameters up to 125 mm The Double Roller Principle The torque is transmitted via six pairs of rollers which are pressed by coil springs into detents. When the preset limit torque has been reached, the rollers move against the spring force up the sloping surface and disengage. This characteristic combined with the particular geometry of the detents provide a high degree of consistancy to the limit torque of the SIKUMAT® over the duration of the operating period. Re-engagement is effected synchronously after 360° due to the asymmetrical division of the detents. engaged Function • When the preset limit torque has been reached the SIKUMAT® ratchets. • Following elimination of overload automatic synchronous re-engagement of the SIKUMAT® to the starting position after 360°. • The overload can be indicated by a proximity switch. This means that the drive can be switched off immediately or another control function c

Synchronous Ratcheting SIKUMAT® SA … with double rollers Types Series SA - Basic version with flange connection For attaching chain wheels, belt pulleys, gear wheels etc. Bearing of attached component on the shaft to be provided by the customer. Series SAG - with long hub With long hub for wide components. Plain bearings are included in delivery. Series SAE - with flexible shaft coupling For flexible connection of two shafts. The flexible elements are oil-proof. Series SAL - with torsionally rigid shaft coupling For torsionally rigid connection of two shafts. Possibility to compensate for large...

Synchronous Ratcheting SIKUMAT® SA with double rollers Basic version with flange connection Driving ring Driving ring size 4 to 11 Z = number of tapped holes G on pitch circle T · Installation must be shut down as soon as torque limiter responds Technical Data Type Limit torque Dimensions Type Keyway as per DIN 6885, page 1 · Tolerance of keyway width P9 Example for Ordering Type Preset limit torque with proximity switch

Synchronous Ratcheting SIKUMAT® SAG with double rollers with long hub illustrated: size 4 to 11 Z = number of tapped holes G on pitch circle T · Installation must be shut down as soon as torque limiter responds Technical Data Type Limit torque Dimensions Type Engagement travel Bore d2 is 0,2…0,5 mm larger than d1 for sizes 4 – 7 Bore d2 is 0,5…1,0 mm larger than d1 for sizes 11 – 14 Keyway as per DIN 6885, page 1 · Tolerance of keyway width P9 Example for Ordering Type Preset limit torque with proximity switch

Synchronous Ratcheting SIKUMAT® SAE with double rollers with flexible shaft coupling illustrated: size 4 to 11 Installation must be shut down as soon as torque limiter responds Technical Data Type Limit torque Dimensions Type Engagement travel Keyway as per DIN 6885, page 1 · Tolerance of keyway width P9 Example for Ordering Type Preset limit torque with proximity switch

Synchronous Ratcheting SIKUMAT® SAL with double rollers with torsionally rigid shaft coupling illustrated: size 4 to 11 Installation must be shut down as soon as torque limiter responds Technical Data Type Limit torque Dimensions Type Engagement travel Permissible radial displacement 0,015 x ø A · Permissible angular displacement max. 3° Keyway as per DIN 6885, page 1 · Tolerance of keyway width P9 Example for Ordering Type Preset limit torque with proximity switch