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HepcoMotion Ring Discs are ideally suited for turntable applications where a precision platform is required for the mounting of components. Ring discs are made from high quality steel, hardened on the V edge and precision ground all over*1. An external datum register is provided and a gear drive option is available in which the number of teeth is divisible by 4 and 12 in order to provide maximum choice of pinion size for exact ratio requirements.
All key dimensions are the same as for the corresponding size of Double Edge Ring Slide
For applications where weight is an issue, a lightweight version (option 'L') is available. Stainless steel ring discs are also available, as is the tapped hole option 'N'.
Ring discs can be made to customer's specification, on request. Variations include other diameters, different thicknesses, special holes, registers or other mounting features, and alternative patterns of lightening recess.
Ring Disc
Unit of Measure
1 

Item #

Dimension A (± 0.2)

Dimension B

Dimension C Ø

Dimension C Tolerance (±)

Dimension D

Dimension F

RD25 159 N/A 159 mm N/A 184 mm N/A 174.4 mm N/A 0.039 mm N/A 184.74 mm N/A 5 mm
RD25 255 N/A 255 mm N/A 280 mm N/A 270.4 mm N/A 0.041 mm N/A 280.74 mm N/A 5 mm
RD25 351 N/A 351 mm N/A 376 mm N/A 366.4 mm N/A 0.044 mm N/A 376.74 mm N/A 5 mm
RD44 468 N/A 468 mm N/A 512 mm N/A 494 mm N/A 0.046 mm N/A 512.74 mm N/A 5 mm
Unit of Measure
1