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Spherical Roller Bearings This type features a large load rating capacity and self-aligning capability. Cylindrical and Tapered bore are available, as are Adapter assemblies and Withdrawal sleeves. Suitable for low or medium speed applications which involve heavy or impact loading.
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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)
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Angular Ball Bearings with Ceramic Balls for Super High Speed Operation
These bearings present the super high speed dn value, 2,100,000 (as dmn value; 2,600,000) using air-oil lubrication. Boundary dimensions are equal to the ISO standard series, but super high speed revolution using air-oil lubrication can be obtained. Bearings also operate under high acceleration conditions.
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Deep Groove Ball Bearings Available as Single or Double Row type. Features include open, one or two shields, one or two seals and locating snap ring. Also available as Extra small, Miniature and Maximum types. The most popular type of bearing, it supports both radial load and a certain degree of axial load in both directions simultaneously.
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NMB is the world’s largest manufacturer of miniature and instrument ball bearings, producing 150 million bearings per month.
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. Standard inch and metric
series radial bearings carry moderate radial and thrust loads at low operating torque and provide high performance within small envelope designs. Stainless steel or chrome steel bearings are available with crown or ribbon type
metallic cages, as well as plastic crown type cages. Open or shielded bearings may be flanged or unflanged. Various types of seals may be specified depending upon the anticipated environment to which the bearings will be exposed.
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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
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These bearings employ plastic for the bearing box and ceramics for the ball, and can be used in corrosive environments with developing fluid and steam.
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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
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Radial ball bearings:
Radial ball bearings
Radial insert ball bearings
Angular contact ball bearings
Spindle bearings
Four point contact bearings
Self aligning ball bearings
Thin section bearings
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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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Self-aligning ball bearings are double row, self-retaining units comprising solid outer rings with a concave raceway, inner rings with a cylindrical or tapered bore and ball and cage assemblies. The bearings are available in open and sealed versions.
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Self aligning ball bearings are non separable double-row radial bearings:
- Excellent alignment compensation due to the spherical outer ring raceway
- Suitable for low to medium radial loads and low thrust loads
- Available in open and sealed versions, as well as in tapered bore (suffix K)
- Standards: DIN 616, DIN 630
- Series: 1200, 1300, 2200, 2300, 11200, 11300
- Application examples: agricultural machinery, chemistry, pumps, etc.
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in dimension series:
1204.. up to 1220..
2204.. up to 2220..
1304.. up to 1319..
2304.. up to 2319..
11205.. up to 11212..
11306.. up to 11310..
cage design: cage of glass-fibre reinforced polyamide 66 resp. brass cages for larger measurements, sheet steel cages on request
series 22.. and 23.. also in sealed version
self-aligning ball bearings are available with cylindrical and tapered bore
larger dimensions on request
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This type is constructed with the inner ring and ball assembly contained within an outer ring which has a spherical raceway. Due to the construction, this bearing type will tolerate a small angular misalignment from deflection or mounting error. Self-aligning ball bearings are suitable for long shafts where accurate positioning of housing bores is difficult. This type is often used in conjunction with pillow blocks. Cages are made from pressed steel or polyamide resin. This bearing should only be used in light axial load applications due to the small axial support of the rolling elements by the outer ring raceway.
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Angular contact ball bearings with single row, double row, matched sets.
To stand axial and radial loads, the range will include different contact angles (12 to 60 degrees), high accuracy for machine tool spindle applications, large size for heavy industries and wheel special bearings also.
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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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The raceways of both the inner and outer rings of this bearing type are made with a set contact angle.
Single-row Angular Contact ball bearings can sustain radial, axial or composite loads, however, any axial load must be in one direction.
Larger contact angle type has better axial load capability.
Small contact angle type has higher permissible speed capability.
This bearing type is generally used in adjacent positions.
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Spindle bearings are single row angular contact ball bearings comprising solid inner and outer rings and ball and cage assemblies with solid window cages. They cannot be dismantled. The bearings are available in open and sealed versions.
Spindle bearings have restricted tolerances. They are particularly suitable for bearing arrangements with very high requirements for guidance accuracy and speed capacity. They have proved highly suitable for the bearing arrangements of spindles in machine tools.
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- sizes per Type Series 719, 70 (718 per agreem.)
- installlation-ready, preloaded universal bearings with fibre cage, and 21º contact angle, optimised for high speed and axial stiffness;
- Precision ABEC 7... 9... HQ
- single row 719/70 USS...
- double row 719/70 USO... (in face-to-face/"DB"-configuration)
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Here's a low profile, large bore bearing that's destined to change your thinking about robotics, inspection equipment, satellites, cameras and similar applications where precise positioning and lightweight designs are critical.
At just 2.5mm wide, ULTRA-SLIM® bearings are available in bore sizes ranging from 35mm to 170mm for an array of applications requiring compact motion control design components.
Precision-engineered ULTRA-SLIM® bearings are made of stainless steel for corrosion resistance. Hybrid versions with ceramic balls are available upon request. ULTRA-SLIM® bearings are available in angular contact (Type A) radial contact (Type C), and four-point contact (Type X) styles.
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Our ability to work in close partnership with our customers to replace traditional steel bearings with custom-designed plastic cost reducing solutions is what truly sets BNL apart from other bearing manufacturers.
The company has been at the cutting edge of plastic bearing design and technology for over 30 years, building an expertise that is unrivalled in this niche market.
The specialist design expertise of our dedicated in-house design team enables us to achieve the best and most cost-effective solutions for all of our customers.
Carefully considering the functional requirements of the application from the outset, we work closely with the customer's own design engineers to produce a single piece, rolling element bearing assembly with additional integrated features such as axles, precision gears, fixing clips, mounting flanges and pulleys. Forming fully integrated assemblies, these additional features maximise the part's functionality and deliver whole system cost reductions to the customer through a significantly reduced parts count and assembly time.
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Deepgrooveballbearing are particularly versatile.They are simple in design, non-separable,suitable for high and even very high speeds and are robust in operation,requiring little maintenance.Deep raceway grooves and the close conformity between the raceway grooves and the ball enable deep groove ball bearings to accommodate axial loads in both directions, in addition to radial loads,even at high speeds.Single row deep groove ball bearings are the most widely used bearing type.
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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.
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The self-aligning ball bearing has two rows of balls and a common concave sphered raceway in the outer ring. The bearing is consequently self-aligning and insensitive to angular misalignmengts of the shaft relative to the housing. It is particular suitable for applications where considerable shaft deflections or misalignment are to be expected.additionally,the self-aligning ball bearing has the lowest friction of all rolling bearings,which enables it to run cooler even at high speeds.
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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 (∝) 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. There are a wide variety of designs and sizes, those commonly used and included in our catalog are:
* Single row angular contact ball bearings
* Double row angular contact ball bearings
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deep groove ball bearings
CAGES:
As to cages, waved pressed steel cages are most common, sometimes turning firmed steel cages and polyamide resin cages are also used.
APPLICATIONS:
Gear box, apparatus instrument, magnetos,elecrical motor,household electrical appliance, gas engine, vehicle, agriculture equipment, engineering machine, ect.
MAINLY TYPE:
Open type, one shield in one side, two shields in both sides, one skeleton rubber seals(contact/non-contact) in one side,two skeleton rubber seals (contact/non-contact) in both sides, with snap ring groove in O.R. and two shields in both sides, with snap ring groove in O.R. and one shields in opposite sides.
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Deep groove ball bearings are the most popular type of ball bearing, they are widely used in a variety of industries. As a result they are available in many sizes with many variations. Deep groove ball bearings are simple in design, suitable for high speeds, non-separable and are able to accommodate axial loads in both directions as well as radial loads.
Deep-groove bearings are durable in operation and easy to maintain. RSM deep groove ball bearings are designed to deliver optimum value and reliability.
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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.
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