MS16625D
NOTES:
1. DIMENSIONS IN INCHES, UNLESS OTHERWISE SPECIFIED. DIMENSIONING AND TOLERANCING SHALL BE IN ACCORDANCE WITH ASME Y14.5M.
2. INACTIVE FOR NEW DESIGN, UNCOATED STEEL, ZINC COATED STEEL AND CADMIUM PLATED STEEL (SEE SUBSTITUTION TABLE III).
3. RECOMMENDED DESIGN LIMITATIONS AND USAGE:
(a) INTENDED USE- TO PROVIDE SHOULDERS FOR POSITIONING AND RETAINING MACHINE COMPONENTS IN HOUSINGS (BORES). TAPERED DESIGN PRINCIPLE PERMITS RINGS TO MAINTAIN CONSTANT CIRCULARITY AND PRESSURE AGAINST BOTTOM OF GROOVE. THE USE OF THE FOLLOWING FORMULAS IS BASED ON THE FACT THAT THE
RING WILL NOT FAIL IN COMPRESSION.
(b) ALLOWABLE THRUST LOAD CAPACITY OF THE RINGS. ABUTTING COMPONENTS TO HAVE SHARP CORNERS.
P = ALLOWABLE THRUST LOAD (POUNDS) H = HOUSING DIAMETER (INCHES) |
||
P = πHTX F |
WHERE: |
T = RING, THICKNESS (INCHES) X = ULTIMATE SHEAR STRENGTH OF THE RING MATERIAL (P.S.I.)* . F = FACTOR OF SAFETY, F=4, IS RECOMMENDED, SINCE THE RING |
UNDER LOAD IS SUBJECTED NOT ONLY TO PURE SHEAR STRESSED
BUT ALSO TO BENDING STRESSES.
(c) ALLOWABLE LOAD CAPACITY OF GROOVE WALL =
P = ALLOWABLE COMPRESSION LOAD (POUNDS) H = HOUSING DIAMETER (INCHES)
P = πHdY. d = GROOVE DEPTH (INCHES)
F WHERE: Y = YIELD STRENGTH IN COMPRESSION OF THE GROOVE MATERIAL (P.S.I.).
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 HOUSING =
Z = MINIMUM DISTANCE BEWTWEEN OUTER GROOVE WALL Z = 3d AND END OF HOUSING (INCHES).
WHERE: d = GROOVE DEPTH (INCHES).
(e) ALLOWABLE HOUSING DIAMETER =
2
H = ALLOWABLE HOUSING DIAMETER
H= G -4FP G = GROOVE DIAMETER.
Y π WHERE: F = FACTOR OF SAFETY (SEE FORMULA (c) ABOVE).
P = DESIGN LOAD.
Y = YIELD STRENGTH IN COMPRESSION OF GROOVE MATERIAL (P.S.I.).
(f) DIFFERENTIAL ROTATION:
THE CONDITIONS UNDER WHICH A RETAINING RING MAY BE USED WHEN ADJACENT PARTS ROTATE RELATIVE TO IT, FALL INTO TWO CATEGORIES:
(1) WHERE NO THRUST IS EXERTED BY ADJACENT PART: IN THIS CASE, DIFFERENTIAL ROTATION OF RING AND ADJACENT PART CREATES NO ELEMENT OF RISK IN THE APPLICATION OF THE RINGS BECAUSE NO FRICTIONAL TORQUE IS EXERTED BY THE MACHINE PART ON THE RING.
(2) CONSIDERATION MUST BE GIVEN TO THE MAGNITUDE OF THE THRUST INVOLVED. THE FRICTION MOMENT MAY NOT EXCEED THE BENDING MOMENT, WHICH THE RING CAN TOLERATE WITHOUT RELEASING ITS PRESSURE AGAINST THE BOTTOM OF THE GROOVE, FORMULATED AS FOLLOWS;
10
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business