|
|
Axial angular contact ball bearings, for screw mounting
The complete units are consisted of a single-piece outer ring, a two-piece inner ring, balls, cage assemblies and seals.
Bearings are double direction angular contact ball bearings with a 60° contact angle in an O arrangement.
can support axial loads from both directions as well as radial loads.
are preloaded after assembly by a precision locknut.
are protected from contamination by lip seals or gap seals.
are greased with a lithium complex soap base grease to SHELL Alvania RL3.
can be relubricated.
are suitable for operating temperatures from -30°C to +120°C (limited by the grease, sealing ring material and the plastic ball cages).
are precision bearings e.g. for use with screw drives.
outer ring is suitable for flange mounting.
lip seals or gap seals on both sides.
|
|
The construction of this ball bearing is similar to mounting two single row angular ball bearings back to back(DB).
Capacities of double row ball bearing is less than single row since few balls can be inserted per row.
This bearing type can sustain radial, moment and bi-directional axial loads.
|
|
- sizes per Type Series 70, 72,73,
- low-friction, low noise, rolling contact ball guide,
- self-adjusting preload, increased number of balls,
- running during extended lifetime with high precision.
- 16º contact angle, face-to-face orientation,
- standardised per DIN 628 part 5
- Precision ABEC 5...7...9...HQ
two rows within the space of a single row bearing:
- Type K (factory standard)
- Type UK (dimensional series 20)
- Type UL, UM (Type series 72, 73)
|
|
Cylindrical roller bearings with snap ring grooves
. Basic Design: Full complement. Double row. Sealed on both sides
. Highest dynamic & static load ratings:
- Maximum utilization of bearing section provides maximum load ratings.
. Superior sealing capability:
- Unique design rubber contact seal prevents dust & water invasion.
. Location: Easy to locate axially due to snap rings on both sides.
. Lubrication: - Lubricate with a lithium soap-based grease containing an EP additive.
. Relubrication: - Lubricate through lubrication hole & grooves only in inner ring.
. Operating temperature: Suitable for -30 to +120°C
. Application: Highly suitable in rope sheave
|
|
|
|
|
|
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
|
|
BEARINGS NO 305-SZZ-3
MG 2X4 306-SZZ-5
9296783 307-SZZ-4
231427 307-SZZ-9
MG206FFHA 307-SZZ-10
MG207FFQH MG-307FFK
MG207FFQA MG 37 ELF
MG207FFU MG 37 ELF-A
MG207FFQ MG 37 ELF-B
MG207FFWA X-376 RS
MG5208VFF1 MG TY 14
MG5208VFFE 1344566
MG5208VFFP 308-SZZ-5
MG5208VFFA 308-SZZ-6
309-SZZ-4 MG 308FFA
X-501-2RS MG 38-2
37N=9AA-132A MG 38-6.1
31/JL MG 38-10
207-SZZ31 MG 38-11
MG 27-10 MG 38-18
MG YT-1 MG 38-7
D580007 37B-911-152A
D581814 37B-911-252A
6071-13220 37EB-71-3326A
91398-22720
91398-22750
91398-22780
MG 307/NS901
231359
|
|
large slewing ring pre-loaded for robotics and for applications where high stiffness and accuracy are requested
|
|
Four point contact bearings are single row angular contact ball bearings and therefore require significantly less space in an axial direction than double row designs.
The bearings comprise solid outer rings, split inner rings and ball and cage assemblies with brass or polyamide cages. Due to the two-piece inner rings, a large number of balls can be accommodated. The halves of the inner ring are matched to the specific bearing and must not be interchanged with those of bearings of the same size. The outer ring with the ball and cage assembly can be fitted separately from the halves of the inner ring.
|
|
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
|
|
Four-point contact ball bearings are a type of single-row angular contact bearing. They can be subjected to radial and axial load in any direction or a combination of radial and axial load.
This type of bearing is mainly used for an axial load and is a separable bearing. One four-point ball bearing can at times be used to replace two angular contact ball bearings used in pairs.
|
|
at the moment selected types or series Q.. and QJ.., e.g. Q306, QJ306, QJ308, QJ206, QJ207, QJ208, QJ209, QJ210, QJ212, QJ218, Q313, Q317
additional types are possible on request
cage design: Glass-fibre reinforced polyamide 66 or brass
|
|
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
|
|
Timken produces precision bearings and assemblies in miniature, instrument and thin-section series. All are manufactured with quality steel, tolerances and features that meet demanding application challenges. These precision bearings and assemblies are applied in surgical and medical imaging devices, precision pumps, measurement and material handling equipment as well as guidance, weapons and space applications.
Super precision ball bearings are available in inch sizes.
|
|
features:
Acetal races as standard
Polypropylene,PEEK, nylon and other materials for bearing races also available
Stainless steel 316 balls as standard
Glass, plastic and other stainless steel ball types available
advantages:
Corrosion resistant
Lubrication free
Lightweight
Low friction
Quiet
Hygienic
Maintenance free
Non-metallic with glass balls
Non-magnetic with glass balls
In excess of 25 years proven performance
|
|
|
Angular contact bearings are designed such that a contact angle between the races and the balls is formed when the bearing is in use. The major design characteristic of this type of bearing is that one, or both of the ring races have one shoulder relieved, or higher than the other. In order for these bearings to function properly, they must be assembled with a thrust load. This loading (or preload) creates a line of contact (or contact angle) between the inner race, the ball and the outer race. The preload can be built into the bearing or created when the bearing is inserted into an assembly. The contact angle varies from 15° to 40° and is measured relative to a line running perpendicular to the bearing axis. Angular contact bearings are unidirectional thrust bearings that can withstand heavy thrust loads and moderate radial loads.
|
|
Flush ground set combination
(Universal matching)
Flush ground set combination bearings are also available with suffix U. This permits the use of random combinations where two or more bearings are mounted.
This type is used for for supporting the ball screws that are used as actuators of high precision and high machines, precision measurement equipment, robots, etc. This is a precision and high ability bearing.
|
|
Timken produces precision bearings and assemblies in miniature, instrument and thin-section series. All are manufactured with quality steel, tolerances and features that meet demanding application challenges. These precision bearings and assemblies are applied in surgical and medical imaging devices, precision pumps, measurement and material handling equipment as well as guidance, weapons and space applications.
Super precision ball bearings are available in inch sizes.
|
|
|
|
|
|
SNFA Series VEB (ISO 19) and VEX (ISO 10) have been developed to offer outstanding performance even in very demanding and advanced applications.
The different issues affecting high speed applications have been analysed when designing and producing these series. Particular attention has been paid to dynamic and heat effects and lubrication problems without neglecting other features such as the load capacity and rigidity. VEB and VEX bearings offer a wide range of application possibilities both with grease and oil lubrication.
The values given for rigidly preloaded bearings are valid as long as operating conditions do not involve marked heat-induced preload increase. In some applications, such as electrospindles for instance, the electric motor generated heat thermally increases bearing preload and reduces the
speed obtainable. H1/NS version VEB and VEX bearings (with ceramic balls and air-oil lubrication feed holes in the outer ring) are the ideal solution for reaching maximum speed.
Minimum air-oil lubrication, controlled constant preload, accurate bearing mounting and good spindle balance are necessary for obtaining satisfactory results with VEB and VEX bearings.
|
|
Koyo's line of EXSEV (Extreme Special Environment) bearings were specifically engineered for the tough applications..like those involving high temperatures, corrosive solutions and atmospheres, dry lubrication, low particle emissions, non-magnetic environments and high vacuum conditions.
Koyo meets the challenge with specialty steels, silicon nitride bearing components and advanced dry film coatings for protection and low particle emissions.
|
|
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
|
|
|
|
|
|
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
|
|
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
|
|
Development of low-torque ball bearing that improves automotive fuel efficiency.
JTEKT Corporation has developed a low-torque ball bearing for use in oil lubrication that improves automotive fuel efficiency.
Many oil-lubrication ball bearings are used in the motor-support areas of hybrid vehicle transmissions and the gear-support areas of automotive automatic transmissions, manual transmissions, and continuously variable transmissions.
Further improvement in automotive fuel efficiency is currently sought, and further reduction of rotational resistance (rotational torque) in the ball bearings used in the above mechanisms is seen as essential. By optimizing the design dimensions of the bearing internal parts, JTEKT has succeeded in reducing rotational torque 40% in comparison with the conventional product.
|
|
SNFA's prime objective has always been to reach the highest levels of specialisation in the design, development and manufacture of precision bearings.
The various series manufactured by SNFA present a wide variety of configuration and sizes. They consist of bearings ranging from a minimum of 6 mm diameter bore to a maximum of 380 mm outer diameter.
Development has always been in line with international standards, as there is a need to offer interchangeability, bearing specifications are therefore classed in accordance with such standards. Specifically, SNFA bearing are designed and manufactured in accordance with the following standards:
- Overall dimension, radii ABMA Std 20 (Equivalent to ISO 15)
- Dimensional tolerance ABMA Std 20 (Equivalent to ISO 492)
- Running accurary tolerance ABMA Std 20 (Equivalent to ISO 492)
|
|
Gamet Bearings has been manufacturing ultra precision bearings since the early 1950’s.
Originally founded to provide products for the machine tool industry, Gamet has expanded its range into many other industry sectors where the highest level of precision is required. Precision ball screw support bearings, cartridges and blocks are also made to meet the ever increasing demands for accuracy placed on linear movement and positioning.
Plain Cup Bearing
Flanged Cup Bearing (C Type)
Constant pre-load Bearing (P type)
Plain Cup (G type) Bearing
Flanged Cup Bearing (H type)
|
|
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
|
|
NSK manufactures a full range of metric and inch size miniature ball bearings with bore diameters of less than 10mm. These can be divided into two basic types, deep groove and angular contact ball bearings.
Deep groove ball bearings are the most common and NSK offer several variants for miniature sizes:
Standard type
Flanged outer ring type
Extended inner ring type
Synchro bearings with thick section outer rings
Extra-thin section type
In addition, NSK can also provide these bearings with shields or seals (contact or non-contact) on one or both sides of the bearing and pre-lubricated with grease.
For applications requiring higher speed, rigidity or axial load capacity, then miniature angular contact bearings are also available.
|
|
BNL now offers a range of higher performance miniature plastic bearings designed to directly replace steel bearings in many demanding long-life light-load applications.
Produced to meet the demanding performance needs of business machines, office equipment and other light duty mechanical applications. Already approved and supplied to the leading OEM manufacturers worldwide.
|
|
Deep groove ball bearings are available in a variety of sizes, and are the most popular of all rolling bearings. This type of bearing supports radial load and a certain degree of axial load in both directions simultaneously.
Extra-small ball bearings and miniature ball bearings:
The open type is widely used. Also available are the shielded / sealed type and the flanged type; the latter is easily positioned in the axial direction.
|
|
|
|
|
|
Ball Bearings
Ball bearings are machinery components, which comprise an outer ring, inner ring, balls, retainers, shields and snap rings. Miniature bearings and small-sized ball bearings have up to 30mm in external diameter. Essential to high-precision rotary components, ball bearings determine rotational accuracy.
Bearing types include Radial Ball Bearings (Deep Groove and Angular Contact) and Thrust Ball Bearings. Radial bearings are designed to carry both radial and axial (thrust) loads, while thrust bearings are designed for pure thrust loads only. Many different configurations are available for ball bearings.
Miniature Bearings
Our miniature bearings range in sizes from .1181 to 1.000 inch O.D. (3mm to 26mm), and are available in inch and metric sizes.
Miniature bearings and instrument bearings are single row bearings. The construction of these miniature bearings enables them to carry moderate radial and thrust loads at low operating torque while providing high performance within a small envelope design. Miniature bearings and instrument bearings are typically available in both stainless steel for those applications requiring corrosion resistance and chrome for maximum fatigue life.
Minebea manufactures more than 8,500 different types of miniature and small-sized bearings, most of which have external diameters of 22mm or less.
|
|
|
|
Ball bearing, Thrust ball bearing
