The SIT-LOCK® keyless locking devices produced by SIT S.p.A. for more than 30 years are ideal for any shaft-hub connection application.
SIT-LOCK® units are suitable to connect any type of hub (flywheels, pulleys, chain wheels, gears, levers, eccentrics, couplings, etc.) and can be utilized in a varied range of industrial applications.
Features
- Help reduce the costs of the assembly
- Ideal for next-generation applications
- High axial and angular positioning accuracy
- Ideal for applications involving acceleration and deceleration
- Zero backlash
- Easy to mount
- Simultaneous loads possible
- Calculation ease
Keyless Locking Devices SIT-LOCK® available executions
CAL3 executionSelf-centering
Comprised of a cut inner ring and outer ring, and a spacer which prevents the hub from moving relative to the shaft when tightening the screws. This locking device is particularly suitable for applications which require low hub pressures. Recommended for use with aluminium hubs or hubs with lower mechanical properties.
CAL4 executionSelf-centering
Composed of two tapered rings and one outer ring with a slit. It is particularly suitable for applications that require high torque transmission.
CAL4A executionSelf-centering
Composed of two tapered rings and one outer ring with a slit. It is particularly suitable for applications that require high torque transmission.
CAL5A executionSelf-centering
Composed of an inner ring and outer ring both with slits. This type of locking device is particularly suitable for applications that require excellent hub-to-shaft concentricity and perpendicularity.
CAL5B executionSelf-centering
Composed of an inner ring and outer ring both with slits. This type of locking device is particularly suitable for applications that require good hub-to-shaft concentricity and perpendicularity. It is also used for locking hubs with lower mechanical properties.
CAL6 executionSelf-centering
Composed of an inner ring and outer ring both with slits. This type of locking device is particularly suitable for applications that require good hub-to-shaft concentricity and perpendicularity.
CAL7 executionSelf-centering
Composed of an inner ring and outer ring both with slits. This type of locking device is particularly suitable for applications that require excellent hub-to-shaft concentricity and perpendicularity. It is also used for locking hubs with limited widths.
CAL8 executionSelf-centering
Composed of an inner ring and outer ring both with slits. This type of locking device is particularly suitable for ap-plications that require excellent hub-to-shaft concentricity and perpendicularity. Allows the same hub, with the same external diameter, to be used on shafts of different diameters
CAL12 executionSelf-centering
Composed of an inner ring and outer ring both with slits. This type of locking device is particularly suitable for applications that require good hub-to-shaft concentricity and perpendicularity
CAL15 executionSelf-centering
Composed of an inner ring and outer ring both with slits. This type of locking device is particularly suitable for applications that require excellent hub-to-shaft concentricity and perpendicularity.
CAL16 executionSelf-centering
Composed of an inner ring and outer ring both with slits. This type of locking device is particularly suitable for applications that require excellent hub-to-shaft concentricity. It is also used for locking hubs with limited widths and diameters.
CAL18 executionSelf-centering
Composed of an inner ring and outer ring both with slits. This type of locking device is particularly suitable for applications that require torque transmission while generating an axial force to axially lock a bearing, washer or any other axially clamped part.
CAL13 executionSelf-centering
Composed of two tapered rings, an inner ring, a slit outer ring and a ring nut with locking washer. It is suitable for applications that require reduced radial and axial dimensions. Particularly suitable for applications without screw tightening space. The ring nut can actually be tightened from above using a special key of very reduced size.
CAL1 executionNot self-centering
Consisting of two tapered rings without slits, a slit inner ring and a slit outer ring, it is particularly suitable for applications that require extensive tolerance
CAL9 executionNot self-centering
Composed of two tapered rings, an inner ring, a slit outer ring and a ring nut with locking washer. It is suitable for applications that require reduced radial and axial dimensions. Particularly suitable for applications without screw tightening space. The ring nut can actually be tightened from above using a special key of very reduced size.
CAL2 executionNot self-centering
Composed of two tapered rings, it is suitable for applications that require smaller dimensions.
CAL10 executionExternal Rigid Shaft Coupling
Composed of two tapered rings and a slit inner ring. It is particularly suitable for clamping two shafts where medium-high torque transmission is required
CAL11 executionExternal
Composed of a slit inner ring and two outer rings without slits. Supplied with DIN 931/933 10.9 screws except for SIT-LOCK® 11S 12.9 which is supplied with DIN 912 12.9 screws.
CAL14 executionExternal
Composed of an inner ring and an outer ring. Comes with DIN 931/933 10.9 or 12.9 screws depending on the model.