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Pitch Diameter Gage Operation Manual
Models MRP 1500/2500/3500
Copyright © 2018 Gagemaker. All rights reserved
8
Set Up Procedures for External Measurements
MRP Dimensional Limits Chart
The chart below shows the dimensional limits of each MRP Gage to assist in determining the correct
gage model for the application. The MRP can be set up for taking internal and external measurements
as shown in the diagrams on the previous page. Both diagrams are labeled with measurements that
correspond to the MRP Dimensional Limits Chart below. Locate the measurement you need on the
chart and determine if the MRP gage model falls within the measurement range.
MRP Gage
Model
Application
A Measurement
MIN/MAX Diameter at Pivot
Shoe with Arms Retracted
B Measurement
MIN/MAX Diameter at Pivot
Shoe with Arms Extended
C Measurement
MIN/MAX Length from Wear
Pad to Center of Pivot Shoe
MRP-1500
Internal
1.75 / 7.50
1.50 / 7.00
.312 / 3.125
External
3.00 / 7.50
3.50 / 7.75
MRP-2511
External
2.25 / 9.75
3.25 / 10.75
.625 / 6.25
MRP-2512
Internal
4.75 / 12.50
3.75 / 11.375
.312 / 6.25
MRP-2521
External
4.75 / 14.75
3.25 / 15.75
.625 / 6.25
MRP-2522
Internal
3.75 / 17.50
3.75 / 16.375
.312 / 6.25
MRP-3511
External
5.75 / 21.00
4.75 / 19.75
.625 / 6.25
MRP-3512
Internal
7.50 / 22.375
6.50 / 21.375
.312 / 6.25