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HepcoMotion Floating Bearings incorporate caged needle rollers and are designed to provide axial movement (float) of the V position. This is especially useful where two rings or track systems are mounted apart.
The float compensates for parallelism tolerances between the opposing V's, eliminating additional loading and maintaining consistent running quality. Three sizes are available, each to correspond with one ring slide section, but they can be used with other sections.
Two stud lengths are available covering most thicknesses of mounting plate, the short version being compatible with HepcoMotion carriage plates. Both versions are available in Concentric (C) which provides a datum (in radial direction) for the system, and Eccentric (DE) which provides sufficient adjustment to allow disengagement of a carriage or ring encircled by bearings.
All bearings are greased for life internally. Customers are strongly advised to provide lubrication to the interface between bearings and ring slide by specifying HepcoMotion Lubricators or bleed lubrication system. Lubrication greatly increases load capacity and life
Unit of Measure

Specifications

For use with Ring Slides

 N/A R25

For use with Ring Discs

 N/A RD25

For use with Curved Segments

 N/A RES, RIS

For use with Track System

 N/A TNS

Dimension A

 N/A 25 mm

Dimension B

 N/A 18.1 mm

Dimension D (± 0.025)

 N/A 20.27 mm

Dimension E

 N/A 11.5 mm

Dimension F (Metric Fine)

 N/A M8 x 1

Dimension G

 N/A 14 mm

Dimension H

 N/A 0.8 mm

Dimension J

 N/A 1 mm

Dimension K

 N/A 5 mm

Dimension L

 N/A 3 mm

Dimension M

 N/A 13 mm

Dimension M1

 N/A 17 mm

Dimension O (+0.0 -0.03)

 N/A 8 mm

Dimension P

 N/A 13 mm

Adjusting Wrench

 N/A AT25

Socket Tool

 N/A RT8

Dimension B1 Min

 N/A 9 mm

Dimension B1 Max

 N/A 10.5 mm

Dimension C (RSFJ)

 N/A 9.8 mm

Dimension C (RLFJ)

 N/A 19 mm

Dimension C1 (RSFJ)

 N/A 3.8 mm

Dimension C1 (RLFJ)

 N/A 13 mm

Dimension C2 (RSFJ)

 N/A 3.4 mm

Dimension C2 (RLFJ)

 N/A 4.9 mm

Dimension E1

 N/A 10 mm

Dimension N

 N/A 2.75 mm

Weight (RSFJ..C/DE)

 N/A 58 g

Weight (RLFJ..C/DE)

 N/A 60 g

Max Working Load Capacity

N/A 1500 N

Bearing Static Radial Load Capacities (Co)

N/A 6100 N

Bearing Dynamic Radial Load Capacities (C)

 N/A 4900 N

Manufacturing Notes

N/A For Dimension O: It is recommended that holes to suit bearing mounting studs should be reamed to tolerance F6 for a sliding fit.
For 2: Nuts and washers are supplied with both concentric and eccentric RSFJ/RLFJ type bearings.
For 3: For adjustment procedure and bearing fixing nut tightening torques.
For 4: Fasteners are black on the concentric version and bright zinc plated on the eccentric version for identification purposes.
For 5: 'B1' dimension is the min/max axial movement of the V center.
For 6: 'N' is the eccentric offset due to the double eccentric design (2 x N = total stroke).