Global Sealing Systems

General Design Consideration

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Global Sealing Systems
[Korea]

Address
Mailing Address ;  Busan Busan
Phone
82-51-9321001
Contact name
Kerry Rhee

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Product Details

Description

General Design Consideration

STANDARD DIMENSIONAL TOLERANCE TABLE-MOLDED RUBBER
PRODUCTS DRAWING DESIGNATION "A1" HIGH PRECISION


Size
(mm)
Above-INCL
Fixed
Closure
0-10
.10
.13
10-16
.13
.13
16-25
.06
.20
25-40
.20
.25
40-63
.25
.32
63-100
.32
.40
100-160
.40
.50
Size
(inch)
Above-INCL
Fixed
Closure
0-40
.004
.005
.40-.63
.005
.006
.63-1.00
.006
.008
1.00-1.60
.008
.010
1.60-2.50
.010
.013
2.50-4.00
.013
.016
4.00-6.30
.016
.020

STANDARD DIMENSIONAL TOLERANCE TABLE-MOLDED RUBBER
PRODUCTS DRAWING DESIGNATION "A2" PRECISION


Size
(mm)
Above-INCL
Fixed
Closure
0-10
.16
.20
10-16
.20
.25
16-25
.25
.32
25-40
.32
.40
40-63
.40
.50
63-100
.50
.63
100-160
.63
.80
160-& over
multiply by
.004
.005
Size
(inch)
Above-INCL
Fixed
Closure
0-40
.006
.008
.40-.63
.008
.010
.63-1.00
.010
.013
1.00-1.60
.013
.016
1.60-2.50
.016
.020
2.50-4.00
.020
.025
4.00-6.30
.025
.032
6.30-& over
multiply by
.004
.005

STANDARD DIMENSIONAL TOLERANCE -TABLE MOLDED RUBBER
PRODUCTS DRAWING DESIGNATION "A3" COMMERCIAL


Size
(mm)
Above-INCL
Fixed
Closure
0-10
.20
.32
10-16
.25
.40
16-25
.32
.50
25-40
.40
.63
40-63
.50
.80
63-100
.63
1.00
100-160
.80
1.25
160-& over
multiply by
.008
.008
Size
(inch)
Above-INCL
Fixed
Closure
0-40
.008
.013
.40-.63
.010
.016
.63-1.00
.013
.020
1.00-1.60
.016
.025
1.60-2.50
.020
.032
2.50-4.00
.025
.040
4.00-6.30
.032
.050
6.30-& over
multiply by
.005
.008

STANDARD DIMENSIONAL TOLERANCE -TABLE MOLDED RUBBER
PRODUCTS DRAWING DESIGNATION "A4" COMMERCIAL


Size
(mm)
Above-INCL
Fixed
Closure
0-10
.32
.80
10-16
.40
.90
16-25
.50
1.00
25-40
.63
1.12
40-63
.80
1.25
63-100
1.00
1.40
100-160
1.25
1.65
160-& over
multiply by
.008
.010
Size
(inch)
Above-INCL
Fixed
Closure
0-40
.013
.032
.40-.63
.016
.036
.63-1.00
.020
.040
1.00-1.60
.025
.045
1.60-2.50
.032
.050
2.50-4.00
.040
.056
4.00-6.30
.050
.063
6.30-& over
multiply by
.008
.010

 Note
  1. Fixed dimension tolerances apply individually to each fixed dimension by its own size.
  2. Closure dimension tolerances are determined by the largest closure dimension and this shingle tolerance is used for all other closure dimensions.
  3. Drawing Designation "A3" tolerances indicate a "commercial" product and will normally be used for most products.

 Summary of RMA Drawing Designations
Dimensional Tolerances
(Table 2-5)
Relative Dimensions
Finish
(Table6)
Flash Extension
(table7)
Boding
(Specify Grande and Method on B1 and B2)
Load-Deflection Characteristic(Spcify only When Needed)
(Table10)
Packing
A1
No designation, see text and/or your rubber supplier. Specify only when needed
F1
T.00mmT.000
B1
D1
P1
A2
F2
T.08mm T.003
B2
D2
P2
A3
F3
T.40mm T.016
B3
D3
P3
A4
F4
T.80mm T.032
B4
-
-
-
-
T.160mm T.063
B5
-
-
-
-
T.235mm T.093
-
-
-
-
-
T.00mm T.00
-
-
-

 RMA Drawing Designation for Flash Extension
Drawing Designation
T.00mm
 (T.000)No flash permitted on area designated.(Standard notation regarding other surfaces must accompany this notation.)
T.08mm
 (T.003) This tolerance will normally require buffing, facing, grinding or a similar operation.
T.40mm
 (T.016) This tolerance will normally require precision die trimming, buffing or extremely accurate trimming.
T.80mm
 (T.032) This tolerance will normally necessitate die trimming, machine trimming, tumbling, hand trimming, or tear trimming.
T1.60mm
 (T.063) This would be the normal tear trim tolerance.
T2.35mm
 (T.093) This tolerance will normally require die trimming, tear trimming, or hand trimming of some type.
T -
(T -) No flash limitation.

 RMA Drawing Designation for Flash
Drawing Designation
F1
 A smooth, polished and uniform finish completely free of tool marks, dents, nicks and scratches, as produced from a highly polished steel mold. In areas where F1 is specified, the mold will be polished to a surface finish of 10 micro-inches(250nm)or better
F2
 A uniform finish as produced from a polished steel mold. In areas where F2 is specified, the mold will be polished to a surface finish of 32 micro-inches(800nm) or better but with very small tool marks not polished out.
F3
 Surfaces of the mold will conform to good machine shop practice and no micro-inch finish will be specified. This is "Commercial Finish".
F4
 Satin finish.

 


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