Assembled Single Edge Ring System (Internal)


When using HepcoMotion internal single edge ring slides it is recommended that two concentric bearings should be placed 120º apart in order to provide a datum reference. The other bearings should be eccentric type. All eccentrics can be used where positional adjustment of the ring is required. Either ring or bearings may be the moving element. The HepcoMotion PRT2 eccentric bearings are of double eccentric design with sufficient throw to enable disengagement of the ring, without further disassembly. One or more lubricators may be fitted at convenient positions to take advantage of the increased load/life afforded by lubrication 54-57.


A X E B X N Bearing


(concentric) 34-35


Blind Hole


Fixing Bearing*3 (eccentric) 34-35


I C D


Outer position of eccentric bearing 34-35


Drilling Center


Pinion 53


M


(max) L*¹


Section X-X


XYZ ABC 123


Calculations 54-57


120° F H Q 90° P


Lubricators 37


Bearings 34-36


Lubricator 37


R J


K *¹ M (min)


Ring slides 28-31


Pinions 53


Ring Slide


Ref No


For use with bearing (Ø)


A B C D E F G H


Drilling Positions*3 I J K*1 L*1 Max Min


RIV 161 ... J18 ... 148 16.7 18.5 1.8 38 17.5 13 13 30.1 2.4 7.4 14 10 2.4 90 14.75 10 8 RIV 228 ... J18 ... 215.2 16.7 18.5 1.8 38 17.5 13 13 30.1 2.4 7.4 14 10 2.4 90 14.75 10 8


RIS 182*3 ... J25 ... 165 23.0 24.9 1.9 - 22.5 16 18 40.2 2.4 9.8 19 13 2.2 - 19 12.25 10 RIS 278 ... J25 ... 261 23.0 24.9 1.9 50 22.5 16 18 40.2 2.4 9.8 19 13 2.2 84 19 12.25 10 RIS 374 ... J25 ... 357 23.0 24.9 1.9 50 22.5 16 18 40.2 2.4 9.8 19 13 2.2 84 19 12.25 10


RIM 482 ... J34 ... 461.5 32.4 35 2.5 60 31 22 25 55.6 2.7 13.8 22 14.8 5.2 90 24 15.5 12.5 RIM 627 ... J34 ... 606.5 32.4 35 2.5 60 31 22 25 55.6 2.7 13.8 22 14.8 5.2 90 24 15.5 12.5 RIL 820 ... J54 ... 788 48.3 52.1 3.9 89.5 45.5 33 38 84.6 3.8 17.8 30 20.4 5.7 90 38.5 24 19.5


Notes: 1. Short or long stud lengths are available for each size of bearing


plate thickness.


2. Exact theoretical values have been given for `B`, `C` and `D`. Positional accuracy of dimension `B` will determine the axis of the ring. Positional accuracy for dimensions `C` and `D` are not normally critical. Holes for bearing studs should be reamed to tolerance F6 for a sliding fit.


3. The eccentric blind hole fixing bearing cannot be used with the RIS 182 ring slide as it clashes with the ring. 25 34-35. Choose according to the required mounting


M N P Q R


G


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