RLK 250 L series

Product catalog summary

Overview: The document provides technical specifications and guidelines for the Cone Clamping Elements RLK 250 L, which are used to center the hub to the shaft and allow for quick assembly.

Features:

Centers the hub to the shaft.
Suitable for small hub outer diameters due to its radial flat height.
Quick assembly facilitated by a central groove nut.
Transmissible torque ranges from 74 Nm to 1,500 Nm.
Compatible with shaft diameters between 15 mm and 70 mm.

Application Example: The RLK 250 L is used for backlash-free connection of a hollow shaft, centering it on the shaft while allowing for a thin-walled design due to its flat radial height.

Simultaneous Transmission: The document notes that when torque and axial force are transmitted simultaneously, both are reduced. Specific technical points are referenced for further details.

Ordering Example: For a shaft diameter of 50 mm, the order would be RLK 250 L, size 50 x 60, with article number 4202-050002-000000.

Surface and Material Requirements:

Average surface roughness between the shaft and hub bore should be Rz = 10 to 25 µm.
Materials should have 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.

Tolerances:

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

Transmissible Torques and Axial Forces: Detailed in a table, these values are affected by the hub's ability to move freely. If restricted, values for torque (M), axial force (F), and contact pressures (PW and PN) are reduced by 37%.

Technical Data: The document includes a comprehensive table listing dimensions, technical data, and article numbers for various sizes of the RLK 250 L.

Catalog excerpts

Cone Clamping Elements RLK 250 L centres the hub to the shaft quick assembly Features • Centresthehubtotheshaft • Radialflatheightisparticularlysuitablefor smallhubouterdiameters • Quickassemblybycentralgroovenut • Transmissibletorqueof74Nmupto 1500Nm • Forshaftdiametersbetween 15mmand70mm Application example Backlashfreeconnectionofahollowshaftwith aConeClampingElementRLK250L.TheCone ClampingElementcentresthehollowshafton theshaft.Duetotheflatradialheightofthe ConeClampingElement,thehollowshaftcan bedesignedthinwalled. 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.

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