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Timken is a premier manufacturer of ball bearings. Whether it's a standard single-row deep groove radial ball bearing or an advanced integral design, Timken has a solution. Timken® Fafnir® ball bearings are found in a broad range of applications including agriculture, food processing, pumps and compressors, electric motors and other precision industrial applications.
Fafnir Ball Bearings:
Radial Ball Bearings
Angular Contact Ball Bearings
Super Precision Ball Bearings
Wide Inner Ring Ball Bearings and Housed Units
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SNR TOPLINE bearings benefit from SNR's state-of-the-art innovations, providing suitable solutions for the most extreme operating requirements.
This product range breaks down into 4 families, with bearings capable of sustaining temperatures from -60 °C (LT series) to +150 °C (FT series) and up to +200 °C (HT series), as well as high rotational speeds up to 700,000 N.Dm (HV series).
Fitted with steel cages, the Topline bearings are also proposed in sealed version (fluorinated elastomer or Viton seal, according to the series) or in protected version (deflector baffles, of lower cost, and suitable for higher rotational speeds).
The TOPLINE product range greases have been selected for their outstanding performance in application and submitted to thorough testing. 70 % of the bearing failures are attributable to lubrication: therefore, particular care has been paid to grease selection, now a major contributor to the quality of our bearings, guarantying their reliability and durability.
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Check our website for bearings for the latest RC Models.
Cross Reference Guides for RC Car & Truck, RC Engines is available on request Email sunil@bocabearings.com
New MX & Ceramic MX Bearings : As radio controlled engines have evolved they have become more powerful, use more nitro fuel and come under greater thrust loads, than in the past.
Econo Series: Designed with the price conscious hobbyist in mind. The Econo Series are a comparable replacement to your current model's stock set of bearings.
High Speed/High Heat Series: Designed with two different types of non-metallic retainers, Polymite Plastic (TH9) and Phenolic Fiber (THB). This one piece design allows for higher RPM's, the non-metallic retainer reduces bearing corrosion and the C3 fit allows for heat expansion and freer rotation.
Stainless Steel Series: The Stainless Steel Series will withstand more moisture or water submersion than our chrome steel RC bearings.
High Performance Series: Designed with our exclusive 2RU rubber seal technology. The High Performance Series were created specifically to eliminate fuel leakage problems.
Ceramic Premium Series: It is more durable, capable of achieving much higher RPM's as well as capable of handling drastically higher temperatures. Our Premium Series are ABEC #3, 5 & 7's and guarantied to withstand much higher levels of nitro than our standard RC bearings.
Ceramic/High Performance Series: This is the ultimate combination of cutting edge ceramic technology and our exclusive 2RU rubber seals. If you want to pamper your engine, this is the way to do it!
sunil@bocabearings.com
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Full ceramic bearings are best suited to extreme operating environments where traditional steel bearings fail. The two main ceramic materials used are Silicon Nitride (Si3N4) and Zirconia (ZrO2). Ceramic is inert, non magnetic, non conductive and capable of withstanding high temperatures up to 1,000C.
Suited for Industrial applications, Medical, Food, Robotics, Chemical industries.
Full ceramic bearings are highly recommended for vacuum environment as well as high heat and corrosive solution applications. Performance racing applications also see great benefit by using full ceramic bearings in certain components. Works well under adverse lubrication conditions.
High radiation, Lightweight, underwater applications make them more attractive to use.
Avail in ZrO2, Si3N4 ceramic materials
Available with PEEK retainer, Teflon retainer or as full complement version.
Radial Full Ceramic Series, Metric/Inch, Open/Sealed
Inch 0.125 to 1.500 inch bore dia
Metric 3 mm to 110 mm bore
Angular Contact Full Ceramic Series
Metric 8 mm to 20 mm bore dia
Self Aligning Full Ceramic Series
Metric 10 mm to 30 mm bore dia
Special sizes can be made - Contact sunil@bocabearings.com
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Special single-row radial contact ball bearings
Stretching clamp for film stretching machines
Client's objectives:
Increasing the stretching rate.
Avoiding lubricant projections on the film.
Operation at 200°C.
Increased service life.
SNR-specific development:
Thick outer ring.
Low torque bearing.
Special design seals.
Special grease, compatible with rail temperature and oil.
Optimized lifetime.
Other possible applications: Transport, Farming machines, Textile, Handling, Lifting, Reduction gears, Rail, Agrifood, Machine-tools, Turbine pumps, Chemical industry, Cam rollers and conveyer rollers.
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Double-row angular contact ball bearings
Thanks to the offset inner/outer ring raceways, dual-row angular contact ball bearings sustain high axial loads and mean radial loads. They sustain high speeds slightly inferior to those admitted by radial contact bearings, of which they keep the general characteristics.
Thanks to their double ball rows, they are robust, multi-purpose bearings, offering good axial loading characteristics in both directions.
Technical data :
Glass fibre-reinforced polyamide cage (3200A, 3300A, 5200 and 5300 series).
Steel sheet cage (3200 B and 3300 B Series). Other cages available on request.
Variants fitted with baffles or seals (5200 and 5300 Series).
Non-standard axial clearance. Values available from SNR on request.
Normal or increased (C3) radial clearance.
Contact angles:
Puce carre 25° for series 3200 and 3300A,
Puce carre 32° for series 3200 and 3300B,
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Double-row radial contact ball bearing
SNR double-row ball bearings have become the natural substitute for single-row ball bearings for higher radial load applications, or for axial loads in both directions. Suitable for mean rotating speeds, these bearings only admit very slight misalignment between shaft and housing, to the order of 0.06°.
Technical data:
Standard synthetic material cage. Pre-greased bearing.
Standard seal.
Normal clearance classification (N). Other groups can be delivered on request.
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We list bearing sizes for most major brands of fishing reels including Shimano, Abu Garcia, Newell, Penn, Daiwa. All of our fishing reel bearings are rated at ABEC #5 or #7.
Check our website for updated info on bearings for latest models of fishing reels.
Shimano Part Number Cross Reference Guide on our website: Listing of most major sizes for Shimano fishing reels and associated Shimano part numbers.
Four Packs Ceramic Lightning Series: Save big on Four Packs. Boca Bearing Company is proud to introduce a very affordable, ceramic solution for your fishing reels. These high tech bearings are ABEC #5's.
REEL GREASE POWER: Reel Grease Power Lightning Lube 2oz Nozzle Tube. Improves performance, reduces heat and extends life of parts.
REEL POWER: LBT Lightning Lube - Reel Power 100ml Spray Bottle. Lubricant for all moving parts.
Ultra Dry Lightning Lube: This thin film coating enhances the delay in corrosion & reduces friction drastically.
These ceramic hybrid bearings bring the latest technology to the fishing industry providing bearings that increase casting distance by over 10%, have substantially longer life and give overall better performance. Ceramic hybrids are a combination of stainless steel races with ceramic balls. Ceramic balls are several times harder than steel, are frictionless and lighter which makes faster spool start-up and higher sustained spool speeds.
E-Mail sunil@bocabearings.com
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MachLine® - High Precision
High precision bearings for machine-tool spindles
Precision, stiffness, high speeds: SNR High Precision bearings meet the most stringent needs.
They also permit machining timesavings as well as maintenance cost savings, and their good load capacity and low heating feature contribute to longer service life.
Technical data:
Universal or matched set bearings.
Very high quality 100 Cr6 steel rings and balls.
Two contact angles: 15° (CV Series) and 25 ° (HV Series).
Three preload levels.
Laminate resin cage centred on the outer ring.
For applications requiring even higher rotating speeds, SNR proposes bearings fitted with ceramic balls, qualified as "hybrids" (CH prefix), on request.
Their specific properties allow increased rotating speeds without over-heating, while improving bearing stiffness and increasing bearing and associated part service life.
For all its series, SNR proposes 2 precision levels ISO4 and ISO2, corresponding to the highest precision tolerances in effect for ball bearings.
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High precision bearings for machine-tool spindles
Precision, stiffness, high speeds: SNR High Precision bearings meet the most stringent needs.
They also permit machining timesavings as well as maintenance cost savings, and their good load capacity and low heating feature contribute to longer service life.
Technical data:
Universal or matched set bearings.
Very high quality 100 Cr6 steel rings and balls.
Two contact angles: 15° (CV Series) and 25 ° (HV Series).
Three preload levels.
Laminate resin cage centred on the outer ring.
For applications requiring even higher rotating speeds, SNR proposes bearings fitted with ceramic balls, qualified as "hybrids" (CH prefix), on request.
Their specific properties allow increased rotating speeds without over-heating, while improving bearing stiffness and increasing bearing and associated part service life.
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High temperature bearings
Fitted with a steel sheet cage, the F600 range bearings receive a specific surface treatment making them more resistant to oxidation and thermal shocks, and allowing operations between 200°C and 350°C.
Suitable for slow handling at high temperatures, they require a rotating speed of less than 50 RPM and moderate loads. Radial clearance was increased to compensate for thermal expansion deviations between the 2 rings and for neighbouring component distortions.
The special treatments of the F600 series can be applied on request to other bearing symbols and types (e.g. spherical roller bearings). Please contact SNR's technical departments.
Applications examples: oven carriages, transport rolls, conveyors, porcelain works, glass making, foundries, cement plants, brick plants…
Series: F600 (standard), F604 (greased and protected), F605 (limestone process)
6000, 6200, 6300
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Conventional all steel bearings limit design potential as technology requirements roll forward at a fantastic rate. Ceramic Hybrid bearings offer a long list of characteristics far superior to that of conventional all-steel bearings.
Ceramic hybrids are a mixture of steel races and ceramics balls. The most common ceramic ball used, because of its hardness, is the Silicon Nitride (Si3N4) ball, although in certain environments either Zirconia (ZrO2) or Alumina Oxide (Al2O3) can be used. Ceramic hybrids offer higher RPMs due to the non-porous ball surface, longer life due to having a greater Rockwell hardness than steel and decreased weight as a result of being 2/3 the weight of steel. Ceramic hybrids are ideally suited to any application looking to achieve increased speed, durability and heat dissipation.
Stainless Steel Series: Stainless Steel resists corrosion in atmospheric, pure water environments as well as most acids, alkaline solutions, and chlorine environments. The easy cleaning ability of stainless makes it the first choice for strict hygiene conditions, such as dental tools, hospitals, kitchens and other food processing envoronments.
Ultra Seals Series: The Ultra Seal is a non-contact, frictionless seal that is placed beneath the metal shields. Say goodbye to dirt, dust and other contaminants without any increased drag. These bearings are maintainence free and lubed for life.
Ceramic Hybrid Series: Ceramic is the new Holy Grail! Its lighter, smoother, stiffer, harder, corrosion resistant, and electrically resistant. These fundamental characteristics allow for a wide range of performance enhancements in bearings.
Contact sunil@bocabearings.com
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Precision, stiffness, high speeds: SNR High Precision bearings meet the most stringent needs.
They also permit machining timesavings as well as maintenance cost savings, and their good load capacity and low heating feature contribute to longer service life.
Technical data:
Universal or matched set bearings.
Very high quality 100 Cr6 steel rings and balls.
Two contact angles: 15° (CV Series) and 25 ° (HV Series).
Three preload levels.
Laminate resin cage centred on the outer ring.
For applications requiring even higher rotating speeds, SNR proposes bearings fitted with ceramic balls, qualified as "hybrids" (CH prefix), on request.
Their specific properties allow increased rotating speeds without over-heating, while improving bearing stiffness and increasing bearing and associated part service life.
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Insert bearings are very popular with Go Kart applications.
Inserts with Steel Balls
Metric 30 mm
Inch 0.75 to 1
Inserts with Ceramic Balls
Metric 35 mm to 50 mm
Some of the Ceramic Inserts Inch sizes include UC202C 5/8", UC204C 3/4", UC205C 1", UC 206C 1-3/16"/ UC 206C 1-1/4", UC 207C 1-3/8"
Some of the Ceramic Inserts Metric sizes include UC204C 20mm, UC205C 25mm, UC206C 30mm, UC207C 35mm, UC208C 40mm, UC209C 45mm, UC210C 50mm
Most of these insert sizes are also avail in the standard steel insert version.
Avail in 4 Bolt or 2 Bolt version
E-Mail sunil@bocabearings.com
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Insert bearings for self-aligning bearing units
The internal structure of bearing-inserts is largely similar to that of standard ball bearings of Series 6200 and 6300.However, they feature wider inner rings to facilitate fitment onto the shaft, or taper bore rings permitting the use of tightening sleeve.
All bearing-inserts are sealed on both sides and can be supplied with cylindrical or spherical outer rings.
Our insert bearings are delivered ready for mounting and are life-lubricated, with suitable grease. No complementary element is required for normal operating conditions.
SNR insert bearings outer and inner rings and balls are made of hardened 100Cr6 bearing steel (or stainless steel if need be).
Standard cast iron or steel sheet insert bearings are delivered with 2-piece riveted steel sheet cages. Stainless steel and thermoplastic insert bearings are fitted with stainless steel cages. The seals are made of nitrile rubber or steel sheet. These bearings can be fitted with blanking caps or not.
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Bearing Tolerances
max. interferance fit of outer ring: 1 to 3 µm
recommended shaft tolerances: +0 to -6 µm
outside diameter: 0 to -8 µm
bore diameter: 8 to -0 µm
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The xiros® polymer ball bearings are single-row grooved ball bearings based on DIN 625. The lubricant-free and maintenance-free ball bearing consists of four components.
- The outer ring
- The inner ring
- The cage
- And the balls
The inner and outer rings are made of igus® tribopolymers to maximize service life and minimize coefficients of friction. In contrast to metallic ball bearings, xiros® polymer ball bearings manage absolutely without lubrication. For this reason they are suited for a multitude of applications that depend not on extreme rotary speeds or loads, but just on lubricant-free application in contrast to permanently lubricated metallic ball bearings. These areas are for example food and medical industries, packaging and textile industries, or the chemical industry and cleanroom applications as well as electronics and office technology.
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Self-aligning ball bearings
With double ball rows and a spherical raceway in the outer ring, self-aligning ball bearings can compensate for installation errors or shaft misalignment.
The SNR double-row self-aligning ball bearings are useful for applications requiring high rotating speeds while exercising moderate radial, and moderate or low axial loading.
SNR proposes an extensive range of self-aligning ball bearings, available with or without seals. Certain Series are fitted with an increased width inner ring (11200, 11300 Series) for easier fitting on shaft.
Technical data:
• Common dimension bearings are fitted with a metallic or synthetic cage (maximum continuous operating temperature = 120°C). Large size bearings are equipped with steel sheet or machined brass cages.
• 2200 and 2300 Series bearings can receive seals.
• Clearance : normal, increased (C3).
Application examples : Long-shaped and flexible shafts, standard industrial applications, chemistry, agriculture…
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Single-row angular contact ball bearings
The inner and outer ring raceways of single-row angular contact ball bearings are offset with respect to each other. This design is particularly suitable for applications combining radial and axial loads. Depending on the series, the contact angle between balls and rings is variable to increase the axial load capacity of the bearings. This angle is 40° for normal precision bearings, and 30° for a few bearings.
Technical data:
Puce fleche jaune Metallic or synthetic material cage (maximum continuous operating temperature = 120°C). Large size bearings fitted with a machined brass cage.
Puce fleche jaune Normal clearance.
Puce fleche jaune Seal or baffle.
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The SNR single-row radial contact ball bearing range is suitable for the most diversified applications. Designed essentially to sustain moderate radial loads, these bearings, which are the most commonly used, also sustain moderate axial loads in all directions. They are particularly suitable for applications with high rotating speeds and when energy loss limitation is sought.
Technical data:
• Standard steel sheet, or solid cages, or polyamide cages (with 25% glass fibre fill)
• Nitrile Seal or baffle
• Normal or increased clearance (C3). Other clearance categories are available on request.
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Ball thrust bearings
SNR has developed a complete range of high quality ball thrust bearings. Thrust bearings are designed to maintain the shaft in one single direction. They admit low rotating speeds and sustain high axial loads. You are strongly advised against submitting them to radial loading.
Ball thrust bearings are comprised of separate items facilitating installation and maintenance. Grease and oil lubrication is feasible.
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RBC Aerospace Bearings offers a full line of Mil Spec Standards and many specialty and custom ball bearing rod end anti-friction bearings to the aerospace industry and all major OEM specifications. These double row, self-aligning bearings accommodate the application%u2019s low torque, high load, and misalignment needs. Product conforms to SAE-AS6039, formerly MIL-B-6039.
These double row self-aligning rod ends have inner rings and balls made from thru-hardened 52100 or 440C stainless to accommodate an application%u2019s corrosion resistance needs. The bearings are lubricated 80 to 100% fill in compliance with MIL-G-81322, MIL-G-23827, and Boeing%u2019s BMS3-33 specifications. Ball bearing rod ends are equipped with PTFE seals bonded to corrosion resistant caps.
The rod end body is selectively heat treated to provide a combination of a fracture tough head, ductile shank, and a carburized raceway to provide high load carrying capacity. External surfaces are plated with cadmium to provide corrosion protection and thread lubricity. The rod end body can be supplied to AISI8620 or RBC%u2019s proprietary AeroCres® corrosion resistant material.
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Automobile air-conditioner bearings
3800-2RS--3818-2RS, 3903-2RS--3912-2RS
5800-2RS--5818-2RS, 5903-2RS--5912-2RS
Double-row thin section angular contact ball bearings
We developed some new products as per customers' samples or drawings
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Key Specifications/Special Features:
30300 series, 32000 series, 32300 series
30200 series, 31300 series, 32200series
All inch series available
Technical capability: Accuracy: tolerance from ISO P0-P4 (US ABEC-1-ABEC-7); Low noise: z1-z3 at accelerated velocity value and zv1-zv3 at velocity value; Working life: according to ISO standard.
Primary Competitive Advantages:
Price
Quality Approvals
Customers' Drawings Accepted
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Brand Name:
EBI
Country of Origin:
China (mainland)
Key Specifications/Special Features:
604-6012, 623-6212, 634-6310,Open,ZZ,2RS High precision Electric Motor Quality ball bearings with high speed, high temperature & noise free
Technical capability:
Accuracy: tolerance from ISO P0-P4 (US ABEC-1 ABEC-7)
Low noise: z1-z4 at accelerated velocity value and zv1-zv4 at velocity value
Working life: according to ISO standard
Primary Competitive Advantages:
Price
Quality Approvals
Customers' Drawings Accepted
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Brand Name:
EBI
Country of Origin:
China (mainland)
Key Specifications/Special Features:
High precision class
Low noise & Vibration
Superior Sealing
Various sizes for different car engine models
Good life performance
Primary Competitive Advantages:
Price
Quality Approvals
Main Export Markets:
Worldwide
Payment Details:
Payment Terms:
L/C, T/T or D/P at sight
Delivery Details:
FOB Port:
Ningbo or Shanghai
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Thrust ball bearings are made as single and double direction bearings. Both designs can transmit high axial loads but must not be loaded radially. Besides the design with flat washers, thrust ball bearings with spherical housing washers and seating washers are available.
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Axial deep groove ball bearings comprise shaft locating washers, housing locating washers and ball and cage assemblies. The bearings are not self-retaining; the ball and cage assembly and bearing washers can therefore be fitted independently of each other.
In addition to series with flat washers, there are also series with spherical housing locating washers for compensation of static misalignment. These designs are normally used in comjunction with support washers. Axial deep groove ball bearings are available in single and double direction designs.
Both designs can support high axial forces but must not be subjected to radial loads.
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Flanged thin section ball bearing used in stone-working machinery.
The bearing purpose is to guide diamond wires for cutting the stone
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Series LEL
with ground raceways
Consists of:
-Four ball race rings with ground raceways
-Segmented strip cage with retained balls
Features:
-Direct integration into your mating structure
-Free selection of ball pitch
Smallest mounting space and high precision
Best radial and axial accuracy
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 see the results for the following category : Ball screws |
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