Metric O-Ring Groove Sizes


 
 

Metric O-Ring Groove Information
 
The O-Ring Store LLC
Metric o-ring groove designs vary greatly and choosing the right one for your application is important for maximum o-ring performance. This metric o-ring groove design reference guide will help you find the right radius, back-up, pressure and other o-ring dimensions for basic applications. Once you find the exact metric o-ring you need, you can easily order online from the world's largest o-ring inventory network.

O-Ring Gland Dimensions

C/S
d2
(mm)
Pressure No Back-Up
100 Bar max
One Back-Up
> 100 Bar
Two Back-Up
> 100 Bar alternating
Radius
Stat Dynam. Pneum P
(mm)
L
(mm)
P
(mm)
L1
(mm)
P
(mm)
L2
(mm)
r1
(mm)
1.00 X     0.70 1.40 - - - - 0.20
1.50 X     1.14 2.40 - - - - 0.30
1.60 X     1.21 2.40   - .   0.30
1.78-1.80 X X   1.49 2.50 1.50 4.16 1.50 6.16 0.40
1.78-1.80     X 1.58 2.50 - - - - 0.40
1.90 X     1.40 2.60 - - - - 0.40
1.90   X   1.55 2.60 1.55 4.00 1.55 5.40 0.40
2.00 X X   1.68 2.80 1.70 4.20 1.70 5.60 0.40
2.40   X   1.80 3.30 2.05 4.70 2.05 6.10 0.50
2.40     X 2.16 3.30 - - - - 0.50
2.40 X     1.90 3.20 - - - - 0.50
2.50   X   2.12 3.50 2.15 4.90 2.15 6.30 0.50
2.50 X   X 2.28 3.50 - - - - 0.50
2.62-2.65 X X   2.25 3.25 2.28 4.65 2.28 6.50 0.60
2.62-2.65     X 2.36 3.25 - - - - 0.60
2.70 X X   2.30 3.60 2.30 5.00 2.30 6.40 0.60
2.95 X X   2.20 3.90 2.50 5.30 2.50 5.30 0.60
3.00   X   2.58 4.10 2.60 5.50 2.60 6.90 0.60
3.00     X 2.72 4.10 - - - - 0.60
3.00 X     2.45 3.80 - - - - 0.60
3.10 X X   2.50 4.10 2.70 5.50 2.70 6.90 0.60
3.50 X X   2.65 4.60 3.05 6.00 3.05 7.40 0.60
3.53-3.55 X     2.70 4.80 3.10 6.20 3.10 7.60 0.80
3.53-3.55     X 3.21 4.40 - - - - 0.80
3.60 X X   2.80 4.80 3.15 6.20 3.15 7.60 0.80
4.00 X X   3.46 5.40 3.51 6.80 3.51 8.20 0.80
4.50 X X   3.50 5.80 4.00 7.50 4.00 9.20 0.80
5.00 X X   4.45 6.70 4.46 8.50 4.46 10.30 0.80
5.00     X 4.65 6.70 - - - - 0.80
5.30-5.33 X X   4.72 6.45 4.75 7.66 4.75 10.26 1.20
5.30-5.33     X 4.85 6.45 - - - - 1.20
5.70 X X   4.60 7.20 5.00 8.90 5.00 10.60 1.20
6.00 X X   5.06 7.60 5.12 9.40 5.12 11.20 1.20
6.00     X 5.30 7.40 - - - - 1.20
6.99-7.00 X X   6.05 8.75 6.10 10.12 6.10 13.55 1.50
6.99-7.00     X 6.22 8.75 - - - - 1.50
8.40   X   7.65 11.10 7.68 13.30 7.68 15.50 1.50
8.40     X 7.85 11.10 - - - - 1.50
8.40 X     7.35 9.10 - - - - 1.50
Information within is believed to be accurate and reliable. However, The O-Ring Store, LLC makes no warranty, expressed or implied, that parts supplied in this material will perform satisfactorily in specific applications. It’s the customer’s responsibility to evaluate the material prior to use.
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1847 Wilma Dr, Clarkston WA 99403
Phone 208-413-6377 - Fax 208-413-6719