|
Through an exclusive grinding process and equipment designed by our own, we’re able to provide precision ground rubber balls with a very close tolerance and superior surface at an unbeatable price.
--- Perfect as Check Balls / Valve Balls in low pressure sealing applications
--- Also suitable for Light load bearings, especially when quite operation required
. No parting lines. Precision ground to a superior sealing surface.
. Very close diameter tolerances for outstanding sealing performance.
Superior than RMA Class A1 High Precision Standard.
. Abrasion resistant, low friction, and virtually no lubrication required
. Resistant to corrosion
. Withstand severe vibration and impact
. Non-magnetic
. Much lighter than metal balls
. Minimal space needed
Standard Precision Ground Rubber Balls:
. Sizes from 0.093” to 0.500”, available diameter and tolerance listed in the table below.
. Material: NBR
. Hardness: 70 duro
. Color: Black
. Generally in stock for prompt delivery. If not, we can make them for you within 72 hours.
Diameter & Tolerances of Standard Precision Ground Rubber Balls
|
Diameter
|
Tolerances
|
|
Inch
|
Decimal Inch
|
mm
|
Diameter
+/- (Inch)
|
Diameter
+/- (mm)
|
Sphericity
(Inch)
|
Sphericity
(mm)
|
|
3/32
|
.093
|
2.36
|
.003
|
0.08
|
.003
|
0.08
|
|
1/8
|
.125
|
3.18
|
.003
|
0.08
|
.003
|
0.08
|
|
9/64
|
.140
|
3.56
|
.003
|
0.08
|
.003
|
0.08
|
|
5/32
|
.156
|
3.96
|
.003
|
0.08
|
.003
|
0.08
|
|
3/16
|
.187
|
4.75
|
.003
|
0.08
|
.003
|
0.08
|
|
7/32
|
.218
|
5.54
|
.003
|
0.08
|
.003
|
0.08
|
|
1/4
|
.250
|
6.35
|
.003
|
0.08
|
.003
|
0.08
|
| |
.275
|
7.00
|
.003
|
0.08
|
.003
|
0.08
|
|
5/16
|
.312
|
7.94
|
.003
|
0.08
|
.003
|
0.08
|
|
3/8
|
.375
|
9.53
|
.003
|
0.08
|
.003
|
0.08
|
| |
.394
|
10.00
|
.004
|
0.10
|
.005
|
0.13
|
|
7/16
|
.437
|
11.11
|
.004
|
0.10
|
.005
|
0.13
|
|
1/2
|
.500
|
12.70
|
.004
|
0.10
|
.005
|
0.13
|
Custom Sizes, Materials (Silicone, EPDM, Viton,....), Hardness (50~90 duro), and Color available.
Food Grade materials upon request.
.
| 
