RLK 250 series

Product catalog summary

Overview: The document provides technical specifications and guidelines for the Cone Clamping Elements RLK 250, which are used to center a hub to a shaft. These elements are designed for quick assembly and easy release, making them suitable for applications requiring frequent maintenance or part replacement.

Features:

Centers the hub to the shaft effectively.
Suitable for small hub outer diameters due to its radial flat height.
Quick assembly facilitated by a central groove nut.
Easy to release, allowing for minimal downtime during maintenance.
Capable of transmitting torque ranging from 38 Nm to 1,050 Nm.
Compatible with shaft diameters between 15 mm and 70 mm.

Application Example: The RLK 250 is ideal for backlash-free connection of a drive wheel to a shaft. The central groove nut ensures uniform displacement of the cone ring during clamping, providing sufficient centering for lower requirements. The self-releasing cone allows for quick disassembly, facilitating rapid replacement of worn drive wheels.

Simultaneous Transmission: The document notes that the transmissible torques and axial forces are specified for conditions where either torque or axial force is zero. When both are transmitted simultaneously, their values are reduced. Detailed technical points are available on pages 72 and 73.

Ordering Information: An example is provided for ordering a Cone Clamping Element RLK 250 for a shaft diameter of 50 mm, with the article number 4202-050001-000000.

Surface and Material Requirements:

Average surface roughness at contact surfaces: Rz = 10 to 25 µm.
Material requirements for shaft and hub include an E-module of ≥ 170 kN/mm².

Installation: Installation and operating instructions are available upon request. The transmissible torques or axial forces are subject to specific tolerances, surface characteristics, and material requirements. Deviations should be discussed with the supplier.

Tolerances:

h8 for shaft diameter d.
H8 for hub bore D.

Technical Data: The document includes a detailed table of dimensions, technical data, and article numbers for various sizes of the RLK 250. It specifies yield strength, transmissible torque or axial force, contact pressure, groove nut weight, and tightening size.

Important Note: If the hub cannot be freely moved to the left due to constraints like a shaft shoulder, the values for torque (M), axial force (F), and contact pressures (PW and PN) are reduced by 37%. In such cases, the required hub outer diameter (Kmin) and width (Nmin) may be lower than indicated.

Catalog excerpts

Cone Clamping Elements RLK 250 centres the hub to the shaft quick assembly, easy to release Features • Centresthehubtotheshaft • Radialflatheightisparticularlysuitable forsmallhubouterdiameters • Quickassemblybycentralgroovenut • Easytorelease • Transmissibletorqueof38Nmupto 1050Nm • Forshaftdiametersbetween 15mmand70mm Application example Backlashfreeconnectionofadrivewheeltoa shaftwithaConeClampingElementRLK250. The central groove nut leads to a uniform displacementoftheconeringduringclamping andthusachievesacentringthatissufficientfor lowerrequirements.Thecentralgroovenutand theself-releasingconeensurequickdisassembly.Thus,aworndrivewheelcanbereplaced withtheshortestofdowntimes. Transmissible torques and axial forces Thetransmissibletorquesoraxialforceslistedon thefollowingpagearesubjecttothefollowing tolerances,surfacecharacteristicsandmaterialrequirements.Pleasecontactusinthecaseofdeviations. Tolerances • h8forshaftdiameterd • H8forhubboreD Simultaneous transmission of torque and axial force Surfaces Average surface roughness at the contact surfacesbetweentheshaftandthehubbore: Rz =10…25µm. Materials Thefollowingapplytotheshaftandthehub: • E-module≥170kN/mm2 The transmissible torques M which are shown inthetablesapplyforaxialforcesF=0kNand conversely,theindicatedaxialforcesFapplyto torquesM=0Nm.Iftorqueandaxialforceareto betransmittedsimultaneously,thetransmissible torque and the transmissible axial force are reduced.Pleaserefertothetechnicalpointson pages72and73.

Open the catalog to page 1