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440C Stainless Steel Series Balls: A martenistic type steel used extensively in bearing applications that require hardness, dimensional stability, corrosion resistance and toughness. Resistant to fresh water, steam, oil, gas, perspiration, alcohol, blood and food stuff. 440 is also magnetic.
316 Stainless Steel Series Balls: Providing resistance to sulfurous acid compounds and other highly corrosive environments. 316 Stainless Steel is used in the presence of sulfuric, phosphoric and ascetic acids. It is the least magnetic of the 300 series.
304 Stainless Steel Series Balls: An austentistic, unhardened stainless steel with excellent resistance to corrosion by oxidizing agents, most organic checmicals, food stuffs and sterilizing solutions.
302 Stainless Steel Series Balls: Extremely corrosion resistant to oxidizing solutions and organic compounds in an unhardened state. In its annealed condition it withstands attacks by food stuffs, sterilizing solutions and nitric acid. Not recommended for sulfuric or halogen applications, and is slightly magnetic.
52100 Chrome Steel Balls: Contains chromium and has excellent surface quality and high load capability due to thorough hardening. 52100 Chrome Steel is a universal material for many applications.
Balls - Avail in Grade 3, 5, 16, 25 in select sizes
440C Stainless Steel Metric 1 to 13 mm
440C Stainless Steel Inch 1/32 to 1 1/4
302 Stainless Steel Inch 7/64 to 1 1/4
304 Stainless Steel Inch 2
316 Stainless Steel Metric 3 to 4
316 Stainless Steel Inch 1/8 to 2
52100 Chrome Steel Metric 1 mm to 40 mm
52100 Chrome Steel Inch 1/8 to 4
E-Mail sunil@bocabearings.com
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We offer all types of industrial or precision balls achieved in various materials and tolerances (metric sizes).
- Nominal diameter : from 0.20 mm to 150 mm
- Material : steel, stainless, ruby, sapphire, ceramic or tungsten carbide.
- Tolerances according to :
DIN 5401 and ISO 3290
- Applications : ball bearings, aerospace, automotive, pumps, valves, mechanical, medical, ...
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Our company is able to provide a full range of balls, with differtent inserts to obtain the required weight, in order to satisfy any application
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Tungsten Carbide/ Tungsten Nickel materials have a unique combination of properties, high compressive strength, hardness and resistance to wear, as well as an ability to withstand shock and impact. Typical applications are valves, flowmeters, ball screws, and linear bearings. Balls from this material are also used for ballizing, gauging and ball pens.
* Ball Pens Tungsten carbide ball has Advanced production techniques and international technical level. Hardness>1400-1500, roughness Ra0.063-0.8 micron,Diameter Tolerance <0.001mm, lineation 2000-2500m, wear-out<0.003mm, microspore uniform distribution, writes smoothly, lineation clearing, abrasion proof,long using life ,printing ink wet ability well, carry over more printing ink, lineation clearing ; good handle ,takeing bake superabundant printing ink. Size from : Diameter 0.38 - 1.4mm .
* Blank Balls Size: Diameter 2.0mm - 100.0mm, offer any Grade material for your using purpose.
* Polished Balls It is used for sintered carbide material by grinding, the technology is advanced, the quality is reliable, corrosion prevention and abrasion proof. The sintered carbide ball can advance bearings' useful life, advance products' useful life, improve products Value.
Welcome your any inquiry to us
website : http://www.tungsten-carbides.com/pro360_1094.htm
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All of our products are qualified through our A2LA lab, the only accredited lab for sphericity in the United States. We also supply customers who require DFARS, Lockheed and NADCAP compliance. For our automotive program, all our heat treat suppliers have been audited by an accredited 3rd party auditor approved by Ford, GM and Chrysler and are in full compliance. We can leverage over 45 years of application experience and rapid prototyping to provide the right standard or custom solution to your project. And we are ISO 9001:2000 resgistered to ensure consistency and quality in all operations.
We offer ball sphericity within 3 millionths of an inch (0.077 micron), 100% quality inspection, and a choice of over 27 high performance materials - all guaranteed to meet or exceed the standards of the American Bearing Manufacturers Association (ANSI/ABMA Std 10 - 1989).
We manufacture in Bristol, CT, and also import semi-finished products from low cost regions and do the finishing in our Bristol plant to guarantee product quality.
Below is a list of our most common products (other materials are available upon request)
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CERBEC Balls are made from two types of silicon nitrides made by Saint-Gobain Ceramics: NBD200 and SN101C. Both are qualified by bearing companies worldwide and meet all the essential requirements of a bearing grade silicon nitride. They are both fabricated using glass encapsulation HIPing which assures 100% density, high beta phase content, micron-sized grains, and minimal levels of glass phase. The attached TABLE 1 shows the typical properties for NBD200 and SN101C silicon nitrides.
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CERBEC balls are known worldwide for their extremely smooth surface finish. Our manufacturing process is totally dedicated to Si3N4 finishing. This focus yields surface finish typically < 0.10 micro inch (< 0.003 micron) consistently from batch to batch for the tens of millions of balls we produce annually. Reduced bearing friction from Si3N4 is a function of smooth surface finish - it must be done right all at the time. CERBEC balls have over 10 years' history of superior surface finish.
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For bearings, a silicon nitride must have certain important characteristics to work properly – in other words, not just any silicon nitride will meet the requirements of bearing performance. There are relatively few silicon nitride’s on the market that are qualified by bearing companies worldwide. Saint-Gobain makes CERBEC balls from (2) qualified silicon nitrides: NBD-200 and SN-101C which are described below.
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CERBEC Balls are made from two types of silicon nitrides made by Saint-Gobain Ceramics: NBD200 and SN101C. Both are qualified by bearing companies worldwide and meet all the essential requirements of a bearing grade silicon nitride. They are both fabricated using glass encapsulation HIPing which assures 100% density, high beta phase content, micron-sized grains, and minimal levels of glass phase. The attached TABLE 1 shows the typical properties for NBD200 and SN101C silicon nitrides.
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RUBBER BALLS
Our firm boasts a twenty-year experience in the production of full spheres in rubber; besides the normal molding of the product we have various equipments for the rectification of the ended piece. The spheres in rubber are produced according to the demands of our clients and they find applications in the sectors of the submerged pomps, of the mixers, in the componentistiches of the automotive and in many others. The used rubbers and you recommend they are the followings :
NBR-SBR-EPDM-SILICONE-FFKM-NR-NBSB.
We have besides spheres in rubber produced with certified WRAS, ACS, NSF.
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SKF Magnetic Bearings has supplied thrust bearings from 130 to 24,500 N (30 to 5,500 lbf), for shaft diameters ranging from 9 to 130 mm (3/8 to 5 inches). These are installed on machines that have rotational speeds ranging from 1,800 to 100,000 rpm. SKF also supplies canned thrust bearing designs for hermetically sealed applications and thrust bearings for high temperature applications up to 220°C (428°F).
The thrust bearings shown above are 17,000 N capacity (3,800 lbf) for a 12,000 rpm turbocompressor with a 120 mm shaft.
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Whether fused or sintered, our ceramic beads ensure high efficiency when microgrinding and microdispersing a whole range of industrial products such as paints, inks, pigments, dyes, mineral fillers, magnetic coatings, pharmaceuticals, agrochemicals and cosmetics.
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