Shaft-Hubs-Connections

Frictional shaft-hub-connections are standard machine elements used to connect shafts and hubs. They are capable of transmitting torque, axial forces, radial forces and bending moments.

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Frictional shaft-hub-connections are standard machine elements used to connect shafts and hubs. They are capable of transmitting torque, axial forces, radial forces and bending moments.

Shrink Discs

Shrink Discs are external clamping connections for the backlash free fastening of hollow shafts or hub to shafts. By tightening clamping screws conical surfaces are pulled together generating radial forces; these forces press the hollow shaft onto the shaft. Torques or axial forces can be transmitted frictionally from the hollow shaft to the shaft. Torques or axial forces can be transmitted frictionally from the hollow shaft to the shaft. The Shrink Disc itself is not involved in the transmission of torques or axial forces. The radial clamping forces which act through the circumference of the hollow shaft also ensure an optimum centring to the shaft.

Cone Clamping Elements

Cone Clamping Elements are internal clamping connections for backlash free fastening of hubs on shafts. By tightening clamping scres conical surfaces are pulled together generating radial forces; these forces create a frictional connection between the Cone Clamping Element and the shaft as well as the hub. Torques or axial forces can be transmitted from the shaft via the Cone Clamping Element to the hub.

Star Discs

Star Discs are flat-bevelled rings which are slotted on the outside and inside. An external axial actauting force is translated by the Star Disc into a much higher radial force. This force creates a frictional connection between the Star Disc and the shaft as well as the hub. Generally, Star Discs are installed in a multiple arrangement as a disc pack.This makes it possible to adjust the transmissible torque to the requirements of the specific applications.

Clamping Systems for Torque Motors

Both complete torque motors and integrated torque motors can be connected by friction to machine shafts with RINGSPANN torque motor clamping systems. In addition to secure, backlash free torque transmission, these systems also ensure precise centring of the torque motor on the machine shaft.

Star Spring Washers as Ball Bearing Compensating Discs

RINGSPANN Star Spring Washers are particularly light spting elements with linear or non linear spring characteristics. They are suitable for application as pressure elements in precision machines and as pressure springs for taking up free movement, and for reducing noise in ball bearings.

Shrink Discs Features:

Shrink Disc RLK 608

  • Highest torque capacity
  • Easy, quick assembly by tightening clamping screws without a torque wrench
  • Distance-controlled assembly ensures ­guaranteed transmissible torques
  • Enclosed design, therefore impervious to dirt
  • True running even at high speeds
  • Centres the hollow shaft or hub to the shaft
  • For hollow shafts or hubs with outer ­diameters of 30 mm up to 620 mm (Shrink Discs RLK 608)
  • For hollow shafts or hubs with outer ­diameters of 30 mm up to 240 mm (Shrink Discs RLK 608 E)
  • For hollow shafts or hubs with outer ­diameters of 24 mm up to 155 mm (Shrink Discs RLK 606)
  • Transmissible torque of 330 Nm up to 4225 000 Nm (Shrink Discs RLK 608)
  • Transmissible torque of 290 Nm up to 237 900 Nm (Shrink Discs RLK 608 E)
  • Transmissible torque of 165 Nm up to 36 200 Nm (Shrink Discs RLK 606)
  • Covers – The cost-effective covers made from black ­plastic (PVC) provide simple contact protection for Shrink Discs RLK 608 and RLK 606 against the screw heads of the rotating Shrink Disc.

Shrink Discs RLK 603

  • High torque capacity
  • Tightening of clamping screws with a ­torque wrench
  • Easy disassembly without jacking screws
  • Centres the hollow shaft or hub to the shaft
  • Transmissible torque of 25 Nm up to 1460 000 Nm (Shrink Discs RLK 603)
  • Transmissible torque of 18 Nm up to 156100 Nm (Shrink Discs RLK 603 S)
  • Transmissible torque of 170 Nm up to 23 000 Nm (Shrink Discs RLK 603 K)
  • For hollow shafts or hubs with outer diameters of 14 mm up to 500 mm (Shrink Discs RLK 603)
  • For hollow shafts or hubs with outer diameters of 14 mm up to 190 mm (Shrink Discs RLK 603 S)
  • For hollow shafts or hubs with outer diameters of 24 mm up to 175 mm (Shrink Discs RLK 603 K)
  • All parts in rust-free stainless steel (Shrink Discs RLK 603 K)
  • High corrosion resistance (Shrink Discs RLK 603 K)
  • Screws DIN 931/933 grade A2-70 (Shrink Discs RLK 603 K)
  • Lubricated with H1-registered grease

 

 

Cone Clamping Elements Features:

  • Centres to the hub to the shaft
  • No axial displacement
  • Corrosion-resistant
  • Quick assembly
  • Easy to detach

Star Discs Features:

  • For frequent ­clamping and release
  • Short axial width
  • Adjustable to the required torque by – multiple arrangements in the form of disc packs
  • Low actuating force required, thus ideal for manual actuation

Clamping Systems for Torque Motors

  • Provides a mechanical connection, support and centring between rotor and machine shaft
  • Backlash free, torsion-proof transmission of torque generated by the torque motor
  • High true run accuracy between rotor and a stator mounted on the machine
  • Low contact pressures exerted on machine shafts or hollow shafts (Clamping Systems RTM 601)
  • Taper Collet chemically nickel-coated to prevent fretting corrosion (Clamping Systems RTM 601)
  • Easily removable clamping element, even after long periods of operation (Clamping Systems RTM 601)
  • Optimally configured contact pressure prevents undesirable deformation of hollow machine shafts (Clamping Systems RTM 607, RTM 134.1, RTM 134.2)
  • Taper Collet chemically nickel-coated to prevent fretting corrosion (Clamping Systems RTM 607)
  • Easily removable Cone Clamping Element, even after long periods of operation (Clamping Systems RTM 607, RTM 608.1, RTM608.2, RTM 134.1, RTM 134.2)
  • Centring bush can be mounted from the B-side of the torque motor (Clamping Systems RTM 607)
  • Taper Collet galvanized and blue-chromed to prevent fretting corrosion motor (Clamping Systems RTM 134.1 and RTM 134.2)
  • Cone Clamping Elements can be mounted from the B-side of the torque motor (Clamping Systems RTM 134.1 and RTM 134.2)

Star Spring Washers

  • RINGSPANN Star Spring Washers are particularly light spring elements with linear or not-linear spring characteristic. They are suitable for application as pressure elements in precision machines and as pressure springs for taking up free movement, and for reducing noise in ball bearings.
  • The very large axial movement of the spring guarantees that considerable axial variations and length tolerances can be accommodated without much deviation from the nominal value of the axial force of the star spring washer.
  • Because of the large axial variations of the spring it is often possible to achieve the desired effect with a single star spring washer.
  • Their spring load corresponds with the optimum values of the relevant bearing sizes.

Shrink Discs

Shrink Discs are used, for example, to fasten machine shafts to gearboxes with hollow-shafts.

Cone Clamping Elements

Cone Clamping Elements are used, for example to fasten sprockets, flywheels, levers, pulleys, brake discs or conveyor-belt drums.

Star Discs

Shaft-hub-connections with Star Discs are used whenever frequent clamping and release are required, for example in adjustment devices.

Star Spring Washers as Ball Bearing Compensating Discs

They are suitable for application as pressure elements in precsion machines and as pressure springs for taking up free movement, and for reducing noise in ball bearings.

  • Shrink Discs
  • Cone Clamping Elements
  • Star Discs
  • Star Spring Washers as Ball Bearing Compensating Discs

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