H70 Brass ball G200 1.2mm is a kind of cooper ball. Diameter can be made from 1.0mm--25.4mm. Grade could be made from G100-- G500. Hardness is HRC28-35. Roundness is being 0.5micro and roughness is being 0.15micro.
1. Size: 1.0mm-25.4mm
2. Characteristics: With a low coefficient of friction, axial and radial movement.
3. Applications: Mainly used for valve, spray, instrument, pressure gauge. The meter, carburetor, electrical accessories, etc.
Copper standard steel cage, aluminum alloy standard steel ball cage, ball-type copper special secret to keep Aircraft, POM (plastic) Micronesia special steel cage-type, close-type aluminum alloy special steel cage, (copper, aluminum, POM) spiral steel cage.
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Grade information |
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GRADE |
Ball Dia. variation |
Deviation from spherical form (U) |
Surface roughness (U) |
lot Dia. variation (U) |
Basic Dia. tolerance (U) |
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INCH |
(U) |
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3 |
0.000003 |
0.08 |
0.08 |
0.012 |
0.13 |
±0.75 |
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5 |
0.000005 |
0.125 |
0.125 |
0.02 |
0.25 |
±1.25 |
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10 |
0.00001 |
0.25 |
0.25 |
0.025 |
0.5 |
±2.5 |
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16 |
0.000016 |
0.4 |
0.4 |
0.025 |
0.8 |
±2.5 |
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24 |
0.000024 |
0.6 |
0.6 |
0.05 |
1.2 |
±2.5 |
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48 |
0.000048 |
1.2 |
1.2 |
0.08 |
2.4 |
±5 |
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100 |
0.0001 |
2.5 |
2.5 |
0.125 |
5 |
±12.5 |
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200 |
0.0002 |
5 |
5 |
0.2 |
10 |
±25 |
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500 |
0.0005 |
12.5 |
12.5 |
- |
25 |
±50 |
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1000 |
0.001 |
25 |
25 |
- |
50 |
±125 |
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2000 |
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50 |
50 |
- |
100 |
±125 |
H. R. T. PRECISION STEEL BALL Co., Ltd. is a leading manufacturer of precision steel balls in China. Products include chrome steel balls, stainless steel balls, ceramic balls, plastic balls and brass ball. Our products and services have won confidence and goodwill among our many customers who require high-precision steel balls.
We supply precision steel balls to various industries in annual capacity of 8, 00, 000, 000 PCS, which cover aviation industry, automobile industry, precision instrument, electronic industry, measuring appliance, motorcycle, bicycle, bearing, medical instrument and food machinery, etc...The H. R. T. Company has a plant covering 1, 000 square meters, allocated with the most advanced machinery and facilities, with the approvals of ISO-9001-2008/ISO14000 and TS-16949. We have the ability, with bearing steel, stainless steel, carbon steel, glass, plastic and copper to manufacture precision balls up to G5, size ranging from 0.5mm to 250mm, especially the high-precision steel balls under 3mm, which have great quality advantages to be used in electronic, chemical, and mechanical industries.
We sincerely hope to build up friendly and long-term cooperation relationship with the customers from all over the world.
For more details on our company and products please feel free to visit our website.
