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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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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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Four-point contact ball bearings
Rlt_4pts_contact100 Spacer Designed to sustain combined loading, SNR 4-point angular contact bearings are particularly suitable for axial loads in both directions. Of lower footprint than dual-row angular contact bearings, they sustain slightly inferior radial loading.
Although with a lower rotating speed limitation than radial contact bearings, four-point angular contact ball bearings provide very satisfactory performance. Thanks to their general characteristics, they are a perfect trade-off for all common applications requiring bearings likely to sustain combined loading.
Technical data:
Puce fleche jaune The cage is generally made of machined brass, centred on the inner or outer ring which makes the ball ring solid with the outer ring.
Puce fleche jaune Axial clearance is not standardised. Values are available from SNR, on request.
Puce fleche jaune Seal or baffle.
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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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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 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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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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336-2001
30BG04S8G-2DS
30BG4S13-2DST2
30BGS10G-2DST(101.007)
30BGS10G-2DST2
30BG05S5G-2DS
5006-2NSL
30BG05S2DS
30BGS1-2NSL
30BG05S1-2NSL
32BG04S3G
320-2001
32BG05S1 -2DSL
35BG05S7G-2NST
35BD5220DF (101.011)
35BD5222DFX7 (101.006)
35BG05S6G
35BG05S10G-2DST2
35BG06G-2DS
DF0789(101.008)
38BG05S2G-2DS
101.008
40BGS40G
40BG05S1DS
40BG05S2G-2DS
712019-NBR-2
40BG05S1G-2DS
65S7684/6559496
40BGS12G-2DS
40BGS11G-2DS
40BGS39G
45BG07S5G-2DST
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Ref.ON
B8-74D
B8-85D
B8-85D
B8-23D
B8-79D
B8-79D
B10-46D
6000TT
62000-2RS
B10-50D
B10-50D
B10-50D
B10-50D
6201-2RS
214
6301-2RS
B12-40D
B12-53D
366
6202-2RS
6202TT
279
B15-69
B15-69
SC0299ZLU
348
B15-85D
319
B15-45D
336
336
B15-86D
B15-83D
6302-2RS
EC6302-2RS
382-2RS
6302-2RS
6203TT
6303-2RS
B17-107D
303WPP
B17-52D
333
B17-99D
B17-116D
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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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Angular contact ball bearings can stand a combined radial and axial load simultaneously. Its axial load carrying capacity increases with respect to the bearing's contact angle. The contact angle (å) is defined as the angle between the line contacting the raceway and ball. The axial load carrying capacity of angular contact ball bearings increases with increasing contact angle.
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NSK manufactures a complete range of metric single row angular contact bearings from 10mm to 775mm bore diameter. The standard contact angles available are 15, 25, 30 or 40 degrees. A range of inch sizes is also available with a standard 20 degree contact angle.
These bearings are capable of supporting radial loads and axial load in one direction. The larger the contact angle, the higher the axial load carrying capacity. For high-speed operation, however, smaller contact angles are preferred.
Normally these bearings are used in duplex pairs in order to support axial loads in either direction. They can be supplied paired back-to-back or face-to-face with known preloads or clearances built-in. They can also be supplied paired in tandem to accept exceptionally heavy axial loads in one direction.
The most popular contact angle for industrial bearings is 40 degrees and these can be supplied with different cage materials including steel, brass or polyamide.
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Double direction axial angular contact ball bearings are non self-retaining precision bearings with restricted tolerances to class SP. They comprise solid shaft locating washers, spacer rings, housing locating washers and ball and cage assemblies with solid brass cages. The parts of the bearings are matched to each other and can be fitted independently of each other; they must not be interchanged with those of bearings of the same size.
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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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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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