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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:
-7000-7040, 7200-7240, 7301-7330, with suffix "C", "AC" and "B" -Quality can reach ABEC-7 (P4), with high speed application -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
Application: High precision , High speed, High temperature, for
spindles of machine tools,etc.
Working life: according to ISO standard
Primary Competitive Advantages:
-Good life performance
-Quality Approvals
-Customer' s Drawings Accepted
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Single row angular contact ball bearings are self-retaining units with solid inner and outer rings and ball and cage assemblies with polyamide, sheet steel or brass cages. The raceways of the inner and outer rings are offset in relation to each other in the direction of the bearing axis. The bearings are available in open and sealed versions. Their self-alignment capacity is very small.
Many sizes of angular contact ball bearings are supplied in X-life design. These bearings are indicated in the dimension tables. Bearings of X-life quality have an improved raceway geometry as well as optimised surfaces. This gives a significant increase in the fatigue limit load of the bearings. In calculation of the expanded adjusted rating life, values up to 50% higher are achieved. In certain applications, a smaller design of bearing arrangement can therefore be used if necessary.
Double row angular contact ball bearings are units with solid inner and outer rings and ball and cage assemblies with polyamide, sheet steel or brass cages. They correspond in design to single row angular contact ball bearings in pairs in an O arrangement but give a narrower design than these. They differ in the size of their contact angle and the design of the bearing rings.
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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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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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We offer a full line of full ceramic & ceramic hybrid bearings specifically suited to bicycles. Various ABEC tolerances, radial plays, retainer styles and seal/shield configurations are available.
To make things easier for you we have compiled bearing kits and listed them according to the manufacturer and model of the bike component that the bearings will fit.
Our Ultra Seal line of ceramic hybrid bicycle bearings are specially designed for On Road and relatively clean riding environments.
Our Yellow Seal line of ceramic hybrid bicycle bearings are specially designed for Off Road and excessively dirty riding environments.
All sealed bearings are packed in grease and will require a short break in period to loosen up.
Dry Lube Any Bearing!
If you are on a quest for reducing the rolling resistance of any steel or ceramic hybrid bearing without the heavy investment that Full Ceramic bearings require, then our Ultra Dry Lube (UDL) coating process is for you. UDL can be applied to any metal substrate and it greatly reduces friction to about half that of graphite. This allows bearings to be run completely dry without any need for grease or oil. The result is a super free spinning bearing that does not have the typical drag associated with a bearing packed in grease or oil.
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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 50 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
Insert Full Ceramic Series
Check for available sizes
Contact sunil@bocabearings.com
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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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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.
Fishing Reel Cross Reference Guide: Listing for fishing reel manufacturers and models, as well as individual bearings and kits. – Available on request.
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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Brand Name:
EBI
Country of Origin:
China (mainland)
Key Specifications/Special Features:
The range of model number:
Miniature bearings: Inner diameter 1mm - 10mm, 3/32" - 1/2" and flanged types
Thin type ball bearings: 6700-6707, 6800-6818, 6900-6920, 16000-16028 with open, z, zz, 2RS
Deep groove ball bearings (with open, z, zz, 2RS): 6000-6030, 6200-6228, 6300-6330, 6403-6418, inch series: R, RLS, RM, 1600 series
Special high precision ball bearings for car Alternator & starters,speed gear box, drive shafe center support,etc.
Material in stainless steel or structure modifications can be made according to customers' requirements at velocity value
Model 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
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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.
sunil@bocabearings.com
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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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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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Deep groove ball bearings are versatile, self-retaining bearings with solid outer rings, inner rings and ball and cage assemblies. These products are of simple design, durable in operation and easy to maintain; they are available in single and double row designs and and in open and sealed variants. Due to the production technology used, open bearings can still have turned recesses on the outer ring for seals or shields.
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Radial insert ball bearings are single row, rady-to-fit units comprising a solid outer ring, an inner ring extended on one or both sides, cages made from plastic or sheet steel and P, R, L or T seals. Bearings with an inner ring extended on both sides undergo less tilting of the inner ring and therefore run more smoothly.
The outer ring has a crowned or cylindrical outside surface. In conjunction with an INA housing matched to the bearing type, bearings with a crowned outside surface compensate for shaft misalignments; see Compensation of misalignments.
They are located on the shaft by means of an eccentric locking collar, grub screws in the inner ring, an adapter sleeve, drive slot or fit. Radial insert ball bearings are particularly easy to fit, suitable for drawn shafts of grade h6 to h9 and, with a few exceptions, can be relubricated.
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1.Single row angular contact ball bearings
2.The angular angle with 15,25,40 degree
3.Standard precision P0 or increased precision P6 or P5
4.The bearing will be mounted or as pair mounted
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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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GWG produce large diameter angular contact ball bearing. In addition to standard items,GWG can make non-standard and custom beairngs with shorter lead time than expected.For more information,please view our homepage www.gwgbearings.com
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Angular contact ball bearing, suitable for high-speed and high-precision rotation, is mainly used in the principal shaft in machine tools, HF motor, gas turbine, oil pump, air compresser, printing machine, etc.
Main specifications of ZQZ bearings include 71900, 7000, 7200, 7300 and 7400.
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Starting with unground ball types and developing into the ground field, RBC NICE today produces a complete line of precision ground, semi-ground, and unground bearings and bearing assemblies. If you are uncertain as to which of RBC's NICE® Ball Bearings, Inc. is best suited for your design application, check with our selection guide. To view an entire product series, select a product from the list that follows.
1600 - Precision Ground Radial Bearings
3000 - Semi-Ground Radial Bearings
6900 - Semi-Ground Radial Bearings, Extended Inner with Flanged Housing
7500 - Heavy Duty Precision Ground Radial Bearings
7600 - Heavy Duty Precision Ground Radial Bearings with Extended Inner Ring
400 - Single Row Unground Radial Bearings
5000 - Single Row Unground Flanged Radial Bearings
500 - Single Row Unground Combination Radial and Thrust Bearings
600 - Unground Thrust Bearings
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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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GWG make large diameter deep groove ball bearing. In addition to stardard bearings, GWG supply non-standard and customer bearings in shorter lead time than expected.For more information,please view our homepage www.gwgbearings.com
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Deep groove ball bearing, featured of simple structure and convenient using, is the kind of bearing that is used the most extensively in the world. With little friction coefficient and high limit speed, it can be used to bear axial load when the rotate speed is too high and thrust ball bearing is not suitable to be used.
ZQZ deep groove ball bearing (open) mainly incudes: 6000, 6200, 62200, 62300, 16000, 6300, 6400, etc.
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Four-point contact ball bearings
GWG produce large diameter Four-point contact ball bearings. In addition to standard items,GWG can make non-standard and custom beairngs with shorter lead time than expected.For more information,please view our homepage www.gwgbearings.com
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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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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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