MS16634C
(e) LOCATION OF GROOVE =
L
MAX =
M
MIN +
T
MIM + TAKE-UP (AS LISTED)
L
MIN =
M
MAX +
T
MAX + .005 1/
∆
TAKE-UP � L +
∆ ∆
M + T + .005 WHERE:
∆ L
L = MAX -
∆ M
L
MIN
M
M = MAX -
∆ T
T = MAX -
MIN
T
MIN
(f) VIBRATION =
A RETAINING RING WILL BE SECURE AGAINST VIBRATION IF ITS SHEAR FATIGUE STRENGTH EQUALS OR EXCEEDS THE FORCE CREATED BY THE MASS OF THE PART BEING REPEATEDLY ACCELERATED AGAINST THE RING.
(1) SHEAR STRENGTH OF RING (CRITICAL). ABUTTING COMPONENTS TO HAVE SHARP CORNERS.
.36XTS � W a X = ULTIMATE SHEAR STRENGTH OF RING MATERIAL (PSI) 2/
g T = RING THICKNESS (INCHES)
WHERE: S = SHAFT DIAMETER (INCHES)
OR FOR HARMONIC MOTION W = WEIGHT OF ABUTTING PARTS (POUNDS)
2
a = δω
2
.36XTS � W δω
g
2 g = ACCELERATION DUE TO GRAVITY (IN/SEC )
δ = AMPLITUDE OF VIBRATION (INCHES)
ω = ANGULAR SPEED (RAD/SEC)
2 a = ACCELERATION (IN/SEC )
(2) COMPRESSION STRENGTH OF GROOVE MATERIAL (CRITICAL) =
2
.55YdG � W δω
Y = YIELD STRENGTH IN COMPRESSION OF THE GROOVE
g WHERE: MATERIAL (PSI)
d = GROOVE DEPTH (INCHES)
G = GROOVE DIAMTER (INCHES) OTHER SYMBOLS AS SHOWN IN (1)
1/ IT IS ADVISABLE FOR SAFER RING ASSEMBLY TO CALCULATE
L
MIN WITH AN ADDITIONAL .005 IN ORDER THAT THE
RING IS NOT FLATTENED OUT COMPLETELY IN ADVERSE TOLERANCE CASES.
2/ X = 100,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS UP TO AND INCLUDING .219 INCH SHAFT DIAMETER OF CARBON STEEL OR CORROSION RESISTANT STEEL.
X = 120,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS .250 AND .312 INCH SHAFT DIAMETER OF CARBON STEEL OR CORROSION RESISTANT STEEL.
X = 150,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS .375 INCH AND OVER SHAFT DIAMETERS OF CARBON STEEL
OR CORROSION RESISTANT STEEL.
X = 110,000 PSI ULTIMATE SHEAR STRENGTH FOR RINGS OF ALL SHAFT DIAMETERS OF BERYLLIUM COPPER.
7
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business