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Ceramic balls are lighter, smoother, stiffer, harder, corrosion resistant, and electrically resistant. These fundamental characteristics allow for a wide range of performance enhancements in bearings. Ceramic Balls are particularly well suited for use in extremely harsh environments where high temperatures or corrosive substances are present.
Silicon Nitride (Si3N4) Series: A new material suitable for applications where high loads, high speeds and extreme temperatures are factors. Long life and the need for minimum lubrication makes this material perfect for harsh conditions. Si3N4 is anti-magnetic. Maximum useful temperature is 2552°F.
Alumina Oxide (AL203) Series: Resistant to most corrosive materials, however not recommended for environments containing hydrochloric hydroflouric acids or strong alkaline solutions. Maximum useful temperature is 3180°F.
Zirconia (Zr02) Series: Inert to corrosive materials, with the exception of hydrofloric acid and hot concentrated sulfuric acid. Maximum useful temperature 1800°F.
Balls - Avail in Grade 3, 5, 16, 25 in select sizes
Si3N4 Metric .8 to 12
Si3N4 Inch 1/32 to 1/2
Zr02 Metric .8 to 8
Zr02 Inch 1/32 to 3/8
AL2O3 Metric 1.2 to 8
AL2O3 Inch 1/32 to 1/4 |
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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 |
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Miniature bearings of very utmost precisions
Radial antifriction bearings
Bearings with thrusts axial
Bearings with contact obliques
Accessories
Of 0.6mm to 90mm
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High Carbon Chrome Balls
This is an oil-hardened steel, which is universally used by the ball and roller bearing industry. The steel has high hardness and good resistance to deformation with excellent wear resistance. Usually vacuum degassed and uniformly through hardened in atmosphere controlled electric furnaces.
International Equivalents
AISI 52100, EN31, JIS G4805 SUJ2, Wks 1.3505
Material Specification
Composition
C 0.95 - 1.10 %
Cr 1.30 - 1.60 %
Mn 0.25 % Max
Si 0.15 - 0.30 %
P 0.03 % Max
S 0.025 % Max
Hardness
HRc 60 - 67
Mechanical Properties
Tensile Strength 325,000 psi
Yield Strength 295,000 psi
Density 0.283 lbs/cu in
Size Range
0.635mm (0.025") to 101.6mm (4")
Standard Grades Available
5, 10, 16, 20, 28, 40, 100, 500 |
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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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Ceramic balls are particularly suited to harsh environments. Their main advantages over steel is that they have a density of 40% lower than steel. Have 29% lower thermal expansion and are 150% harder. In certain high-speed applications their life is extended by as much as a hundred times. The three main materials used are Alumina Oxide, Zirconia Oxide and Silicon Nitride.
Material Specifications-Alumina Oxide
Composition: 99.5% Al2O3/0.5% other
Hardness: 1700 Hv
Max Work Temp: 1400oC
Material Specifications-Zirconia Oxide
Composition: 97% ZrO2/3% MgO
Hardness: 80 - 84 Ra
Max Work Temp: 2400oC
Material Specifications-Silicon Nitride
Composition: 87% Si3N4 / 13% other
Hardness: 1400 - 1700 Hv
Max Work Temp: 1000oC
Standard Grades Available
3, 5, 10, 16, 20, 28, 40, 100. |
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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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Material Specifications
Composition 87% Si3N4 / 13% other
Hardness 1400 - 1600 Hv
Ultimate Compressive Strength > Mpa 4000
Youngs Modulous > Gpa 303-313
Poisson's Ratio > 0.28 - 0.30
Maximum Working Temperature 1000oC
Corrosion Resistance Insert to most substances.
All Silicon Nitride materials are Hot Isostatically Pressed (HIP'd)
Approved bearing grade material available in accordance with F2094 Class 1a.
Standard Grades Available
3, 5, 10, 16, 20, 28, 40, 100. |
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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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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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Tungsten Carbide 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.
Material Specification
Composition
Tungsten Carbide 93 - 95 %
Cobalt 5 - 7 %
Hardness
Hra 90.5 - 91.5
Mechanical Properties
Density 14.947 - 15.0% g/cm3
Thermal Conductivity 100 W/m/oC
Electrical Resistivity 20 u ohms/cm
Linear Expansion Coefficient 20 - 400oC 4.9 10-6/oC
Linear Expansion Coefficient 20 - 800oC 5.3 10-6/oC
Transverse Rupture Strength @ 20oC 2600 N/mm2
Fracture Toughness K c @ 20oC 12 MN/m2
Compressive Strength @ 20oC 6200 N/mm2
Poisson's Ratio 0.22
Magnetic Properties Slightly magnetic
Size Range
1.588mm (1/16") to 50.800mm (2")
Standard Grades Available
5, 10, 25, 100 |
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- Bird Deterrent System using Hollow Plastic Balls:
CIC Floating Hollow Plastic Ball Covers are used to camouflage ponds, tanks, and water basins to prevent birds from seeing and landing in industrial water that may contain harmful chemicals, oils, acid, and salts. 4" (100mm) Hollow Plastic Balls
- Polypropylene Hollow Balls:
Hollow Plastic Balls help control heat loss, evaporation, and help with odor and mist control. Hollow Balls are also used as a check-valve ball in flow control applications. Order by the trial pack, carton, bulk pack or truckload.
- HDPE Hollow Balls:
Hollow Plastic Balls help control heat loss, evaporation, and help with odor and mist control. Hollow Balls are also used as a check-valve ball in flow control applications. HDPE Hollow Balls can be used in Oil and Gasoline Applications. Order by the trial pack, carton, bulk pack or truckload.
-Large Hollow Plastic Balls:
Large Hollow Plastic Balls are used for Display, Technical, Research, Industrial, telescope bodies, signage, and animal toys. The balls are made with a small hole in top that is completely enclosed with a welded plastic fitting and threaded plug. Seventeen standard colors are available. Hollow Balls are made from Polyethylene that meets FDA requirements for food contact.
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Custom formulated Cast Phenolic Balls offer excellent abrasion and impact resistance for valves, pumps, and flow control. They are a suitable replacement for Stainless Steel in most applications. Phenolic Balls also offer an excellent combination of chemical and heat resistance with superior tensile and compressive strength compared with other plastic balls.
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CIC Ball is a leading supplier of a wide variety of Precision Balls.
The balls meet the highest quality standards of the bearing, valve, pump, and medical industries. Products are designed and made to perform in demanding industrial applications.
Our technical sales staff has over 30 years experience serving customers in all aspects of product development. We can provide the material selection, technical assistance, and specialized industry knowledge required. We ship worldwide and have a global distribution network that can provide product and customer assistance. |
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Cast Polyurethane Balls are available with or without a metal core insert. Polyurethane coated steel balls are used in pumps that require a fast sealing check valve ball. The balls are offered precision ground or as molded (with seam). Polyurethane offers excellent Abrasion resistance, Tear Strength, Chemical Resistance, and wide operating temperature range. Polyurethane balls offer greater performance characteristics when compared to rubber balls and can be used in heavy duty industrial applications.
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- Nitrile Rubber Balls:
Seamless Rubber Balls Provide Excellent Sealing in Flow Control Applications such as Pumps and Check- Valves. Excellent oil resistance.
Molded Only Buna N Rubber Balls (with molding seams) are available for non-critical applications.
- Viton Rubber Balls:
Seamless Viton Rubber Balls Provide Excellent Sealing in Flow Control Applications such as Pumps and Check- Valves. Viton Balls are Suitable for High Temperature and Harsh Chemical Environments.
- Silicone Rubber Balls:
Seamless and Molded-Only Silicone Rubber Balls Provide Excellent Performance in High Temperature Medical and Food Applications.
- Pure Gum Rubber Balls:
Seamless and Molded-Only Pure Gum Rubber Balls Provide Excellent Shock Absorption, Abrasion Resistance and Sealing.
- Neoprene Rubber Balls:
Seamless Neoprene (CR) Chloroprene Rubber Balls Provide Excellent Performance in General Industrial Applications. Molded Only Neoprene Rubber Balls are available.
- EPDM Rubber Balls:
Seamless and Molded-Only EPDM Rubber Balls Provide Excellent Performance in Water and Environmental Applications. |
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CIC Ball is a leading supplier of a wide variety of Precision Balls.
The balls meet the highest quality standards of the bearing, valve, pump, and medical industries. Products are designed and made to perform in demanding industrial applications.
Our technical sales staff has over 30 years experience serving customers in all aspects of product development. We can provide the material selection, technical assistance, and specialized industry knowledge required. We ship worldwide and have a global distribution network that can provide product and customer assistance. |
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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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| ... products without technical information |
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HIGH CAPACITY
The patented recirculating-ball principle affords high precision and load carrying capacity at any angle of inclination. Shock-absorbing and 'friction-less' load capacities from 30 - 2000 kg (75-4480 lbs)
MEDIUM DUTY
A simple cup-and-ball design with load capacities from 20 - 500 kg. These offer good performance in the movement of loads in any horizontal direction. Many popular metric configurations available.
LIGHT DUTY
Suited to light hardware applications, these pressed-steel units offer an economic, alternative handling solution. Available in many different configurations, offering load ratings of 20 kg {44 lbs} to 120 kg {264 lbs}.
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Advantages:
Large selection of standard and special ball screws
Precision steel, stainless and nylon balls
Ball diameter 12,5 mm - 90 mm
Hollow balls and specific solutions on request
Fields of use. cargo handling, conveyor systems,
Machinery and facilities, robot industry
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| Ball transfer units provide instant directional change and are manufactured to meet the highest standards of performance in load transfer applications |
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Material Options - standard materials are of high-grade steel with outer housings zinc-plated for standard corrosion resistance - we also offer 3 further levels of resistance to corrosion to handle the most difficult working environments:
1. Stainless steel balls only.
(Add suffix 'A' to part number)
2. Arduous conditions - specially treated steel housing with stainless
steel load-bearing parts. (Add suffix 'Z' to part number)
3. All stainless steel construction.
(Add suffix 'SS' to part number)
Note: Non-marking Nylon 66, Acetal or Phenolic Resin balls are
available, together with other special order materials, upon request.
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Versatile spring loaded units which are pre-loaded to support from 23 to 2036 kgs.
Integral moulded Nylon seal and zinc plated housing for corrosion resistance. Available in different forms, with or without additional fixing flange. Load at maximum deflection from 32 to 2036 kgs.
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| ... products without technical information |
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