MS16626C
NOTES:
1. DIMENSIONS IN INCHES, UNLESS OTHERWISE SPECIFIED.
2. IN THE EVENT OF A CONFLICT BETWEEN THE TEXT OF THIS STANDARD AND THE REFERENCES CITED HEREIN, THE TEXT OF THIS STANDARD SHALL TAKE PRECEDENCE.
3. RECOMMENDED DESIGN LIMITATIONS AND USAGE:
(a) INTENDED USE- TO PROVIDE UNIFORM PROTRUDING SHOULDERS FOR POSITIONING AND RETAINING MACHINE COMPONENTS IN HOUSINGS (BORES). TAPERED DESIGN PRINCIPLE PERMITS RINGS TO MAINTAIN PRACTICTICALLY CONSTANT CIRCULARITY, AND FIT SECURELY AGAINST BOTTOM OF GROOVE, COUNTERACTING CONSIDERABLE CENTRIFUGAL FORCE (SEE CHART BELOW). ESPECIALLY SUITED FOR LOCATING AND RETAINING MACHINE PARTS HAVING CURVED ABUTTING SURFACES. THE USE OF THE FOLLOWING FORMULAS ARE BASED ON THE FACT THAT THE RING MATERIAL WILL NOT FAIL IN COMPRESSION.
LIMITATION ON USE - THE FOLLOWING FORMULAS ARE NOT TO BE USED FOR BRITTLE MATERIALS SUCH AS CAST IRON, ETC.
WARNING: RINGS SHOULD NOT BE OVER EXPANDED DURING INSTALLATION SINCE THIS WILL LEAD TO RING FAILURE.
IF RING HAS PLAY BETWEEN THE GROOVE DIAMETER AND THE INSIDE RING DIAMETER THIS INDICATES THAT THE RING HAS BEEN OVER EXPANDED, (PROVIDING THE GROOVE DIAMETER HAS BEEN MACHINED
TO RECOMMENDED DIMENSIONS).
FOR APPROXIMATE SAFETY RPM LIMITS SEE TABLE V.
TABLE V. APPROXIMATE SAFETY RPM LIMITS.
0 SHAFT (INCHES) |
.500 |
1 |
2 |
3 |
4 |
|
CARBON STEEL AND CORROSION RESISTANT STEEL BERYLLIUM COPPER |
RPM LIMIT RPM LIMIT |
40,000 25,000 |
20,000 13,000 |
10,000 6,400 |
6,700 |
5,000 |
(b) ALLOWABLE THRUST LOAD CAPACITY OF THE RINGS, ABUTTING COMPONENTS TO HAVE SHARP CORNERS =
P = ALLOWABLE THRUST LOAD (POUNDS) S = SHAFT DIAMETER (INCHES) |
||
P = 2 πSTX 3 F |
WHERE: |
T = RING THICKNESS (INCHES) X = ULTIMATE SHEAR STRENGTH OF THE RING MATERIAL (PSI) 1/ |
F = FACTOR OF SAFETY |
A FACTOR OF SAFETY, F=4, IS RECOMMENDED, SINCE THE RING UNDER LOAD IS SUBJECTED NOT ONLY TO PURE SHEAR STRESSES, BUT ALSO TO BENDING STRESSES.
(c) ALLOWABLE LOAD CAPACITY OF GROOVE WALL =
P = ALLOWABLE COMPRESSION LOAD (POUNDS) S = SHAFT DIAMETER (INCHES)
P = 1 πSdY. d = GROOVE DEPTH (INCHES)
2 F WHERE: Y = YIELD STRENGTH IN COMPRESSION OF THE GROOVE MATERIAL (PSI)
F = FACTOR OF SAFETY
TO INSURE A SAFE WORKING LOAD, A SAFETY FACTOR, F = 2, IS RECOMMENDED. (d) MINIMUM DISTANCE BETWEEN OUTER GROOVE WALL AND END OF SHAFT =
Z = MINIMUM DISTANCE BEWTWEEN OUTER GROOVE WALL Z = 3d AND END OF SHAFT (INCHES)
WHERE: d = GROOVE DEPTH (INCHES)
7
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business