Infinityseal.com: Products: O-rings: Groove Design for O-ring Installation

Groove Design for O-ring Installation

Age resistance generally associated with products fabricated from various rubber.


Rod Seal Given: Rod Diameter C 0-ring Cross Section W Dynamic application No back-ups required		Example: = .500" = 3/32" nominal
Determine: 0-ring size Gland Depth F Groove Width G Rod Gland D		Example: = AS-568-112 (1/2" ID x 3/32" W nominal dimensions) = .090 .003(from chart) = .144 ± .003" (from chart) = C + 2F = .500" + 2x.090"= .680"
Piston Seal Given: Cylinder Bore A 0-ring Cross Section W Static application No back-ups required		Example: = 1.000" = 1/8" nominal
Determine: 0-ring size Gland Depth F Piston Groove B		Example: = AS 568-210 (1" OD x 1/8" W nominal dimensions) = .1 14 (from chart) Groove Width C = .195 + .003" (from chart) = A-2F = 1.000" -2x. 1 14" = .772"

A = Uniform Dash Number
B = Actual Cross Section Dia.
C = Dynamic1
D = Static

E = Dynamic1 + .000 / -.001
F = Static + .000 / -.001
G = No Backup Ring
H = One Backup Ring

I = Two Backup Rings
J = 500 PSI
K = 1500 PSI
L = Eccentricity3 (Maximum)
M = Radius (R)

Diametral
Squeeze (Minimum)

Gland Depth F

Groove Width
G + .003

Diametral2 Clearance (Max) D

A

B

C

D

E

F

G

H

I

J

K

L

M

-001
.040+.003

.004

.006

.033

.031

.056

-

-

.005

.0025

.002

.010

-002
.050 +.003

.005

.008

.042

.039

.070

-

-

.006

.003

.002

.010

-003
.060 +.003

.006

.009

.051

.048

.084

-

-

.007

.0035

.002

.016

-004 to -050
.070 +.003

.007

.011

.060

.056

.098

.140

.207

.008

.004

.002

.016

-102 to -178
.103 +.003

.010

.015

.090

.085

.144

.173

.240

.009

.004

.002

.016

-201 to -284
.139 +.004

.014

.021

.121

.114

.195

.210

.277

.010

.006

.003

.031

-309 to -395
.210 +.005

.021

.032

.184

.173

.294

.313

.412

.011

.007

.004

.031

-425 to -475
.275 +.006

.028

.042

.241

.227

.385

.410

.540

.012

.008

.005

.047