O-RING
ORS (Space saving) ORP (Movable type) ORG (Fixed type)
W (Thickness)
O-ring JIS No.
O–ring groove machining dimension (Reference value)
Part Number
Enlarged view of AA cross section
do (Inner diameter)
Type
＊ d
＊ D, D
No.
1 (common)
0.15 or less
20 21 22 24 25 26 28 30 31 32 34 35 36 38 39 40 42 44 46 48 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95
20 21 22 24 25 26 28 30 31 32 34 35 36 38 39 40 42 44 46 48 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95
24 25 26 30 31 32 34 36 37 38 40 41 42 44 45 46 48 50 52 54 30 35 40 45 50 55 60 65 70 75 80 85 90 95
19.8 20.8 21.8 23.7 24.7 25.7 27.7 29.7 30.7 31.7 33.7 34.7 35.7 37.7 38.7 39.7 41.7 43.7 45.7 47.7 24.4 29.4 34.4 39.4 44.4 49.4 54.4 59.4 64.4 69.4 74.4 79.4 84.4 89.4 94.4 99.4
P 20 P 21 P 22 P 24 P 25 P 26 P 28 P 30 P 31 P 32 P 34 P 35 P 36 P 38 P 39 P 40 P 42 P 44 P 46 P 48 G 25 G 30 G 35 G 40 G 45 G 50 G 55 G 60 G 65 G 70 G 75 G 80 G 85 G 90 G 95 G100 G105 G110 G115 G120
+ 0.06 0
0 –0.06
2.4 ± 0.07
A
± 0.3
A
W
W
ORP ( Movable type)
Part Number Usable Temperature Range
M Material
+ 0.08 0
0 –0.08
ORS
–30°C– 80°C –15°C–200°C
Nitrile rubber Fluoric rubber
(NBR–70–1)
3.5 ± 0.1
ORP/ORG
(FKM–70)
E Usable temperature range is for reference only.
Part Number ORS 30
Delivery Quotation
Order
± 0.5
± 0.3
Part Number
O–ring groove machining dimension (Reference value)
W (Thickness)
do (Inner diameter)
Type
＊ d
＊ D
＊ D
No.
1
3 4 5 6 7 8 9
5.3 6.3 7.3 8.3 9.3
2.5 3.5 4.5 5.5 6.5 7.5 8.5 9.5
3 4 5 6 7 8 9
5 6 7 8 9
± 0.5
ORG (Static type)
+ 0.10 0
0 –0.10
10 11 12 14 16 17 18 20 22 24 27 28 29 31 33 35 37 38 39 41 42 43 45 47 49 51
10.3 11.3 12.3 14.3 16.3 17.3 18.3 20.3 22.3 24.3 27.5 28.5 29.5 31.5 33.5 35.5 37.5 38.5 39.5 41.5 42.5 43.5 45.5 47.5 49.5
3.1 ± 0.1
1.5 ± 0.1
10 12 14 15 16 18 20 22 24 25 26 28 30 32 34 35 36 38 39 40 42 44 46 48
10 12 14 15 16 18 20 22 24 25 26 28 30 32 34 35 36 38 39 40 42 44 46 48
11.5 13.5 14.5 15.5 17.5 19.5 21.5 23.5 24.5 25.5 27.5 29.5 31.5 33.5 34.5 35.5 37.5 38.5 39.5 41.5 43.5 45.5 47.5
100 105 110 115 120 125
± 0.8
100 105 110 115
100 105 110 115
104.4 109.4 114.4 119.4
± 0.15
ORS (Space saving)
+ 0.05 0
+ 0.05 0
0 –0.05
120 120 ＊ For d, D, D 1 dimensions, refer to D the following. E ORP is the equivalent of P series of JIS standard. E ORG is the equivalent of G series of JIS standard.
For Cylinder Face Fixing
For Flat Surface Fixing
φ d
G
Example
O–ring Cylindrical cavity insert
φ d φ D
2.0 ± 0.1
Base plate
R0.1–0.2
Against external pressure
IN
OUT
± 0.25
φ D 1
51
＊ For d, D, D 1 dimensions, D Right page
G
E ORS is space–saving standard instead of JIS standard.
W (Thickness)
O-ring JIS No.
O–ring groove machining dimension (Reference value)
Part Number
do (Inner diameter)
R0.1–0.2
Type
＊ d
＊ D, D
No.
1 (common)
Groove machining example
3 4 5 6 7 8 9
2.8 3.8 4.8 5.8 6.8 7.8 8.8 9.8
P 3 P 4 P 5 P 6 P 7 P 8 P 9 P10 P11 P12 P14 P15 P16 P18
3 4 5 6 7 8 9
6 7 8 9
■ O-ring Groove Dimensions
Against internal pressure
E H size is required for flat surface fixing. E Use the ORP O–rings for movable applications. E Calculate the groove depth φ D(D 1 )− φ d 2
T H Tolerance
D/d Eccentricity max.
G + 0.25 0
Part Number
H
R max.
1.9 ± 0.07
+ 0.05 0
0 –0.05
ORS 3– 22 ORS 24– 48 ORP 3– 10 ORP 11– 22 ORP 24– 48 ORG 25–120
for cylinder face fixing from E Notation of O-ring for movable applications/for flat surface fixing is according to the specifications of JIS B2401. E There is difference between sizes of O-ring for movable applications/for flat surface fixing. E O-ring for movable applications can be used for flat surface fixing as well.
– –
– –
2.5 2.7 2.5 3.2 4.7 4.1
1.0 1.5 1.4 1.8 2.7 2.4
0 –0.1
10 11 12 13 15 16 18 19 20 22
0.4 0.4 0.7 0.8
0.05 0.05 0.08 0.08
ORP (Movable type)
± 0.24
10 11 12 14 15 16 18
10 11 12 14 15 16 18
± 0.05
10.8 11.8 13.8 14.8 15.8 17.8
+ 0.06 0
0 –0.06
2.4 ± 0.07
＊ For d, D, D 1 , D Right page
E ORP is the equivalent of P series of JIS standard.
1039
1040
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