Precision Bearings

Product Details:

NTN offers a wide range of Precision Angular Contact Ball Bearings for use in high speed machining. These product designs are manufactured to address both radial & thrust loads while still maintaining speed requirements needed for metalworking and other machining processes. These designs are normally found in CNC spindles which are critical for maintaining tight tolerances to achieve proper finished goods in manufacturing.

Precision Cylindrical Roller Bearings are essential in spindle designs utilized in the manufacturing marketplace. Both single and double row precision cylindrical roller bearing designs are manufactured with tighter tolerances and clearance options to maintain efficient finished goods. Cylindrical rollers bearings are required where thrust loads and rigidity are present in the machining process.
Precision Taper Roller Bearings are utilized within some CNC machining processes. They are found in small spindle designs that require heavy thrust load capabilities. They also can be found in other machining functions not related to the primary spindle itself. Their precision taper rollers are manufactured with tighter tolerances to maintain proper functionality.

The rigidity of the main spindle of a machine tool is associated with both bearing rigidity and shaft rigidity. Bearing rigidity is typically governed by the elastic deformation between the rolling elements and raceway surface under load. Usually, bearings are preloaded in order to increase the rigidity. Under same loading conditions, a roller bearing has a higher rigidity than a ball bearing of the same size. 
NTN High Precision Bearings combine leading technology and the expertise of a global leader to optimize the performance of your machine.The range of precision bearings has been developed by NTN experts in close collaboration with some of the biggest names in machine tools. The benefit of the range:• Productivity: optimised production cost• Accuracy: high-quality machining• Reliability: reduced maintenance costs• Eco-Design: environmental protection

The range features the ULTAGE® label, proof of its ultimate performance.

Spindle Bearings• High Precision Angular contact ball bearings - Standard, High-Speed and Ultra-high-speed• High precision cylindrical roller bearings with 1 or 2 rows of rollers - Standard and High-Speed• Angular Contact Ball Bearings for Axial loads
Ball Screw Support Bearings• BSTU - sealed• BST - open/sealed

Product Details:

Standard Series of High Precision Angular Contact Ball Bearings, A basic series of NSK bearing (Super Precision Angular Contact Ball Bearing) that meets ISO standards.

Features:

• NSK''s Z steel, a long life bearing steel, is used as the standard material
• The 70 and 79 series are sealed with a grease life that has been improved by one and half times

Robust Series of Ultra High-Speed Angular Contact Ball Bearings:

This series developed with the best of material, evaluation, and analysis technologies, of which NSK is proud. This is highly functional series for machine tool. In addition, the sealed type of this series, which offers longer service life and shows excellent environmental friendliness is available.

Features:

• Reduces heat generation and achieves high-speed rotation
• X type bearing, which is made of SHX steel developed by NSK, offers long service life for use in high-speed applications
• Wide lineup to meet various applications is achieved
• Grease life of the sealed type has been extended

Robust Series, Spinshot it of Ultra High-Speed Angular Contact Ball Bearing With Oil-Air Lubrication

Ultra High-Speed rotation and low-noise performance has been achieved through focusing efforts on optimizing the oil-air lubrication system of this bearing.

Features:

Achieves 40,000 min-1 with ISO-40 equivalent taper using oil-air lubrication.

• Noise levels reduced by approximately 3 dB to 5 dB in comparison with conventional oil-air lubrication
• Achieves 40,000 min-1 with about half of the air volume of conventional oil-air lubrication

Robust BGR Series of Ultra High Precision Angular Contact Ball Bearings:

Accommodate the need for high precision and ultra high-speed for shaft diameters of less than 30 mm. Highly functional series that support the high performance requirements of compact spindles.

Features:

• Ultra high-speed bearings designed specifically for compact spindles
• X-type with inner and outer rings that are made of excellent heat resistant and wear resistant SHX steel help high-speed applications achieve a long service life
• High precision specifications are standard

Robust Series of Ultra High-Speed Angular Contact Thrust Ball Bearings:

A Robust series of angular contact ball bearings for sustaining axial loads that achieves high-speed and high rigidity performance.

Product Details:

RHP Bearings have a long heritage, which is respected throughout the world. RHP Super Precision Bearing (Ransom, Hoffman and Pollard) was formed in 1969 as a result of the amalgamation of three of the UK's leading bearing manufacturers. RHP Bearings has gone onto field of various bearing types in a multitude of applications. NSK a major world force in rolling bearing technology is an organization committed to global localization. Recognizing the synergy with RHP since 1990, NSK joined force to create NSK-RHP which is strongly identified as a core brand by customers throughout the world.

Currently NSK-RHP has three specialties:

• RHP Inch series bearing
• RHP Bearing units incorporated into different housings
• RHP Super Precision Bearings for Machine Tool Application

In the field of modern machine tool building, instrument making and other engineering activities, ever increasing demands are placed on bearing performances in the terms of higher rotational accuracies and speeds. These demands are reliably met with RHP Super Precision Bearings, which demonstrates the following distinct features:

Features:

• Extreme accuracy
• High rotational speed
• Minimum friction and heat generation
• Controlled rigidity

NSK-RHP Super Precision Bearings:

NSK-RHP manufacturers three basic types of Super Precision Bearings:

• Single row angular contact ball bearings
• Ball screw support bearings
• Single row radial ball bearings
• Angular contact ball bearings

This is the most adaptable and important bearing within the NSK-RHP range for use in machine tool spindles. The many combinations of contact angle and preload allow precise bearing selection to cope with most arduous of requirements, be they speed or capacity. The range has preferred contact angles 15 degrees and 25 degrees and laminated phenolic resin cages. Bearings can be supplied singly, in paired units or multiple sets.

The NSK-RHP Excel range has been introduced in response to industries need for higher speeds and has a larger number of balls. They also offer higher stiffness. They are dimensionally interchangeable with bearings with normal ball diameter. The NSK-RHP Ultra range is designed for particularly high speed application.

The NSK-RHP Excel, Ultra and normal ranges can be supplied with silicon nitride (ceramic) balls. These offer higher speeds and lower operation temperatures, as well as enhanced stiffness.

Ball Screw Support Bearings:

• NSK-RHP has available a comprehensive range of ball screw support bearings, cartridge and pillow block
• Units Ball Screw support bearings with their high rigidity, low torque, simple mounting and elimination
• Of the need for preload adjustment provide ideal support solution
• RHP ball screw support bearings are

Designated BSB have 60 degrees contact angle and are manufactured to P3 tolerances. The balls are separated by one piece, glass fiber reinforced nylon molded cage.

Product Details:

FAG super precision bearings for main spindles stand for very high precision and absolute operational security. Innovative FAG spindle bearing solutions are continually raising standards in relation to speeds, accuracy and rating life. For the main spindle system and the overall machine tool system to be successful, however, bearing components alone are no longer sufficient as a guarantee. Significant increases in performance and the creation of unique selling propositions for the customer are now achieved when the bearing manufacturer offers advice and carries out development work on the basis of wide-ranging system knowledge as well as being able to provide support through a range of service functions. It is through close partnership with the manufacturers of spindles and machine tools and through shared knowledge, founded on experience, of the requirements of end users and their customers that the potential exists for achieving a leading role in the market.
Differrent Variant for fag Spindle bearings are as below
 B7014 Standard spindle bearings, steel balls, medium series 
B71914 Standard spindle bearings, steel balls, light series.
B7214 Standard spindle bearings, steel balls, heavy series
HC7014 Hybrid spindle bearings with small balls, ceramic balls, medium series
HC71914 Hybrid spindle bearings with small balls, ceramic balls, light series 
HCB7014 Hybrid standard spindle bearings, ceramic balls, medium series
HCB71914 Hybrid standard spindle bearings, ceramic balls, light series
 HCB7214 Hybrid standard spindle bearings, ceramic balls, heavy series 
HCRS7014 Hybrid high speed spindle bearings, ceramic balls, medium series
HCRS71914 Hybrid high speed spindle bearings, ceramic balls, light series
 HS7014 Spindle bearings with small balls, steel balls, medium series 
HS71914 Spindle bearings with small balls, steel balls, light series.

Additional Information:

• Item Code: HS71900-C-T-P4S

Product Details:

Barden is the pre-eminent leader in super precision ball bearing manufacturing in the world today. Barden Super Precision Bearing excel in applications where bearings of lesser quality have failed. If superior accuracy, reliability of operation, long-life, high running speeds and low noise and vibration are requirements in your application, Barden/FAG precision bearings are the bearings of choice.

These high speed super precision bearings are available with fibre cages, ceramic and small balls, or sealed.

Barden Angular contact bearings have one ring shoulder partially or totally removed. This allows a larger ball complement than found in comparable deep groove bearings, hence a greater load capacity. Speed capability is also greater.

Angular contact bearings are assembled to a contact angle by varying the radial clearance. Spindle size Barden angular contact bearings have nominal contact angles of either 15° or 25°. The smaller angle delivers better radial capacity and rigidity, the larger angle is better for axial rigidity.

Ball Screw Support Bearings:

Series L Ball screw support bearings are specially designed for high performance machine tools, where extreme rigidity requirements preclude the use of standard angular contact bearings. The internal configuration has been designed to provide an optimum combination of high rigidity, low drag and exceptional control of lateral runout and long life. Contact angle is high at 65° to provide axial rigidity and the very high thrust capacity.

Also available are the 7602., 7603 and BSB (15 mm width) series.

Spindle Bearings

Barden offers both Angular Contact and Deep Groove Spindle Bearings that are made to exacting Abec 7 or Abec 9 specifications, standards that Barden routinely exceeds.

Angular Contact bearings support thrust loads or combinations of radial and thrust loads in one direction while a deep groove spindle bearing can accept radial loads thrust loads (limited) in either direction or a combination of loads.

Instrument Ball Bearings

Barden offers both Angular contact and Deep Groove Instrument Bearings.

Angular Contact Instrument Bearings

Angular contact bearings have one ring shoulder partially or totally removed. This allows a larger ball complement than found in comparable deep groove bearings, hence a greater load capacity. Speed capability is also greater.

Angular contact bearings are assembled to a contact angle by varying the radial clearance. Instrument angular contact bearings have nominal contact angles of either 10° or 15°.

Separable and non-separable types are available. In a separable bearing (B type), the cage holds the balls in place so that the outer ring assembly (with cage and balls) can be separated from the inner ring.

Separable bearings are useful where bearings must be installed in blind holes or where press fits are required, both on the shaft and in the housing. The separable feature also permits dynamic balancing of a rotating component with inner ring mounted in place, apart from the outer ring and housing.

Angular contact bearings support thrust loads or combinations of radial and thrust loading. They cannot accept radial loads only — a thrust load of sufficient magnitude must be present. An individual angular contact bearing can be thrust-loaded in only one direction; this load may be a working load or a preload.

Deep Groove Instrument Bearings

Deep groove ball bearings have full shoulders on both sides of the raceways of the inner and outer rings. They can accept radial loads, thrust loads in either direction, or a combination of loads.

 

 

Product Details:

Since 1952, the SNFA Group has distinguished itself in the market as one of the finest precision angular contact bearing manufacturers in the world. Known for their exacting quality and innovative design, SNFA Bearing are engineered to run smoother, faster, cooler, quieter and longer than competitive products. Roto Precision is pleased to offer in Canada the full range of SNFA products for all of your high speed super precision angular contact bearing requirements.

With more than 50 years of experience, exclusively within the design and manufacturing of special bearings for advanced technology, in particular for Aerospace and Machine Tool application, SNFA has become the reference point in the world of high quality, advanced technology bearings.

As the Group activity expanded, SNFA gradually implemented an organizational structure based on three major product groups with the objective of reaching the highest levels of specialization in:

• Cylindrical and spherical roller and ball bearings for the Aerospace industry
• High precision angular contact ball bearings for machine tool and other special applications
• Special bearings for high performance applications

• SEA
• SEB
• VEB
• VEB/NS, VEB/XN
• HB
• HB/NS, HB/S/NS, HB/S/XN
• EX
• VEX VEX/S
• VEX/NS, VEX/S/NS, VEX/S/NX
• HX, HX/NS
• HX/NS, HX/S/NS, HX/S/XN
• E200
• BS200, BS200/S
• BS200 (Special)
• BSDU
• BSQU
• BSQU/1

Product Details:

IBC offers an exceptionally high quality range of precision and super precision bearings from their production plants in Germany and Switzerland.

Their capability to innovate has set them apart from other manufactures. The use of different materials for bearing components has been one of the divisive factors in increasing the performance of their products. The use of ceramic rolling elements, enhanced cage materials like PEEK overcome challenging environments.

IBC’s product range is further enhanced by ATCoat thin dense chrome plated bearings which are designed for special applications, offering service life boosting characteristics as well as outstanding wear and corrosion protection properties.

The innovative way that IBC holds stock in component form and their streamlined assembly program allows for greatly reduced delivery lead times on matched bearings and special assemblies incorporating non standard materials produced specifically for customers actual requirements.

Product solutions include:

· Super Precision Angular Contact Ball Bearings

· Cylindrical Roller Bearings

· Ball Screw Support Bearings

· ATCoat Rolling Bearings

· Precision Locknuts

· Linear Motion Bearings

 

Product Details:

Angular Contact Ball Bearings Standard Type:

• Series 7900C/7900AC
• Series 7000C/7000AC
• Series 7200C/7200AC Series

High-speed Angular Contact Ball Bearings:

• BNH Series

Thrust Load Angular Contact Ball Bearings:

• TAH Series
• TBH Series

Multiple-row Cylindrical Roller Bearings:

• NN3000 Series
• NNU4900 Series

Cross Tapered Roller Bearings:

• XRN Series
• XRG Series

Ball Screw Support Bearings:

• TAB Series
• TAF Series

Product Details:

Small ball bearings, thin-section bearings and special-purpose ball bearings from Zwicker Kugellager GmbH are used in many areas of industry, from medical engineering and the electric motor industry to the broad spectrum of mechanical engineering. The focal areas of production are precision ball bearings with bore diameters from 4 mm to 25 mm. Our customers particularly value the flexible manufacturing offered by Zwicker.

Products: Deep-groove ball bearings with bore diameters from 4 mm to 25 mm, with various shields and seals, cages, lubricating greases or oils p Bearings for prosthetics p Bearing units p Special-purpose bearings according to drawing

Product Details:

Myonic is an international industrial bearing manufacturer that has been part of the MinebeaMitsumi group of companies since 2009. The MinebeMitsumi group comprises 66 subsidiaries in 18 countries, leads the competition with new methods and technologies, and consistently strives for innovation through investment, research and development.

Myonic products have consistent high precision and are used in numerous applications. Myonic products are used when you require high rotational speeds, low friction and low noise levels with high product lifecycles.

National Precision Bearing is your source for Myonic and continually work with the factory to offer cost optimized technical solutions.

Key Myonic Products:

Highest precision miniature ball bearings are used in the area of medical, vacuum, foodstuff, aerospace and high-speed technology as well as in many other industrial applications. Myonic offers innovative and economic solutions through sustainability in quality, speed and flexibility. Due to their many years of experience in dealing with extreme conditions, they are able to offer tailor made solutions for every customer.

• Ball Bearings
• Dental Bearings
• Machine Tool
• Ball Bearings

Myonic products have consistent high precision and are used in all kinds of applications to meet high rotational speeds, low friction moments, maximum rigidities, low noise levels at the smallest dimensions with high product lifecycles.

Myonic also has a ball bearing solution ready for standard applications or can develop this in cooperation with the customer. During this process, the material selection, the lubricant, the closures and the design of the interior geometry of the ball bearing are very important. This makes it possible for myonic ball bearings to achieve 1 million rotations per minute and can be used at temperatures above 500°C or below -180°C, in a high vacuum or in a dry helium atmosphere.
Dental Instrument Bearings

Dental bearings must be able to withstand the most extreme conditions and at the same time are one of the most decisive components for the performance of a dental instrument. To consistently improve this performance, an individual solution must always be sought and implemented consistently.

For decades, myonic has supplied customers worldwide with its innovative and reliable dental bearings and has earned itself an exceptional market position. Severe operational challenges such as rotational speeds of up to 500,000 rpm, vibrations, superheated steam or different cleaning media can be met by using Myonic dental products.

Myonic solutions can be found in turbines, contra angle handpieces and dental motors.

Aside from the individual design, these challenges are met with a systematic selection of materials and lubricants.

• Machine Tool Bearings

The machine tool industry requires capable system partners to continue to increase its own competitiveness. The necessary short development cycles require maximum flexibility and innovative solution approaches.

Myonic products are used in rotary table systems and rotary axes as well as in linear propulsion units.

The precision requirements are met using state-of-the-art production technologies. The manufacturing processes used at myonic enable optimised geometries while maintaining maximum precision and flexibility.

 

Product Details:

STC-Steyr® is an international manufacturer of rolling bearings and accessories and has been manufacturing rolling bearings in series production in the traditional industrial location of Steyr, Austria, since 1922.
STC-Steyr® opened an office in Berlin in 2007, from which the STC-Steyr® brand serves the global market.

• Ball bearings

Ball bearings are a sub-category of roller bearings. In ball bearings, rolling elements between a inner ring and an outer ring reduce frictional resistance, in contrast to lubrication in the case of plain bearings. The rings secure axles and shafts by absorbing radial and/or axial forces, depending on the structural form, while allowing the rotation of the shaft or components mounted on an axle (for example, a wheel). Rolling friction mostly occurs between the three main components of inner ring, outer ring and rolling element. Since the rolling elements in the inner and outer ring roll on hardened steel surfaces with optimised lubrication, the rolling friction of these bearings is relatively low.

• Deep-groove ball bearings

Deep-groove ball bearings are particularly versatile. In addition to allowing the absorption of radial loads, they simultaneously enable the absorption of axial loads in both directions. They are of simple construction, durable in operation and maintenance and suitable for high to very high rotational speeds.

 

• Axial deep-groove ball bearings

Axial deep-groove ball bearings are suitable for supporting axial loads but must not be subjected to radial loads. Axial deep-groove ball bearings are not self-retaining and consist of the shaft washer, housing washer and ball set retained by a cage. Depending on the application, they are manufactured as single or double-direction bearings. Single-direction axial deep-groove ball bearings are suitable for absorbing axial forces in one direction and can thus support the shaft to one side. Double-direction axial deep-groove ball bearings, by contrast, can absorb axial forces in both directions and thus, as locating bearings, they support the guidance of the shaft to both sides.

• Angular contact ball bearings

Single-row angular contact ball bearings are non-separable bearings with solid inner and outer and rings whose raceways are offset against each other in the direction of the bearing shaft. This allows angular contact ball bearings to be subjected to radial and axial loads. They only absorb axial forces in one direction and thus need to be adjusted against a second bearing. Single-row angular contact ball bearings are designed for high rotational speeds.

Product Details:

WM Berg has earned a reputation worldwide for quality, reliability and service. They offer precision machine parts in a variety of product lines with competitive pricing.

WM Berg offers a wide variety of precision-made bearings that enable machinery to to move at extremely high speeds and carry remarkable loads with ease and efficiency.Berg offers many different options for your application, including custom bearings:-

• Journal Bearings
• Ball bearings
• Linear Bearings
• Needle Bearings
• Roller & Thrust Bearings
• Spherical Bearings
• Oil-less Bearings

They also offer Couplings and Shafts, Precision Gears, Sprocket and Pulleys, Belts and Chains etc

WM Berg offers several types of bearings that support linear motion.The Berg Linear Ball Bearing line features multiple circuits of freely recirculating balls to transmit the applied loads.Available in four styles, they provide extremely low friction along with high load carrying capacity.

Ball Bearings

Berg manufactures custom ball bearings with up to ABEC-7 tolerances. Customization options include single or double row, flanged or unflanged, open or shielded. Their stainless steel and plastic ball bearings are ideal for high-precision applications requiring close tolerances and high running accuracy.

OILLESS BEARINGS

Berg manufactures oilless (self-lubricating) bearings including plain or flanged ultra-precision, plain or flanged grade S.A.E. 30, and plain and flanged style.

THRUST BEARINGS

Thrust bearings support axial loads (force applied in the same direction as the shaft), reduce friction and allow rotation of mechanical parts.

Common Applications Requiring Customized Thrust Bearings:

• Industrial machinery with rotating shafts such as generators, compressors, blowers, pumps & turbines
• Medical technology with rotating shafts such as dialysis machines, blood or infusion pumps, endoscopes, centrifuges, cutting tools & more
• Fans used in aircraft air supply systems
• Fluid control valves
• Machine tools

ROLLER BEARINGS

Roller bearings use cylinders as rollers instead of balls. Roller bearings can handle heavier loads than ball bearings and may include multiple rows of rolling cylinders to increase load capacity. WM Berg manufactures roller bearings in two types: needle roller bearings and thrust roller bearings.

Common Applications Requiring Customized Roller Bearings:

• Air cargo handling systems
• Industrial conveyor systems
• Medical imaging equipment
• Precision motion control systems used in robotics or machining

SPHERICAL BEARINGS

Berg manufactures spherical bearings including self-lubricating and self-aligning spherical annular bearings, and spherical bearings with lubrication required. Customization options include bore diameter, single or double row, sealed or unsealed cage, dual or external raceway, plating, and material. Spherical bearings are ideal for applications involving heavy loads that require shock/vibration resistance.

ANGULAR CONTACT BEARINGS

Berg manufactures non-separable angular contact ball bearings with up to ABEC-7 tolerances. Customization options include ball and cage material, contact angle, sealed or open, preloading, and lubrication hole for oil or grease. Angular contact bearings are ideal for high-speed operations that require rigidity and bearing load support.

Product Details:

Angular Contact Bearings:
Fafnir angular contact ball bearings are designed for combination radial and axial loading. Single-row bearings have high thrust capacity in one direction. Some single-row bearings are specifically designed for duplex mounting in sets for maximum performance. Double-row Conrad bearings can accommodate thrust in both directions.

The special geometry of angular contact bearing raceways and shoulders creates ball contact angles that support higher axial loads. Different designs offer contact angles ranging from 20° to 40°. Higher angles provide more axial load capacity for longer service life operating under axial and radial loads.

Typical Applications:

• General industrial
• Chemical
• Utilities
• Agricultural
• Expanded Options
• Special lubricants
• Special cage materials
• Special preloads
• Special coatings for corrosion resistance

2MM-WI types with 15° initial contact angle are designed to meet the needs of machine builders for precision bearings which will operate at as low a temperature as possible for a wide range of speeds and operating loads. In order for machines to produce more accurate work at a higher production rate, the bearings must provide a high degree of rigidity in both axial and radial directions while operating a minimum temperatures. For example, precision machining or cutting tools impose heavier loads on bearings than those encountered in precision grinding. In the former, speeds are slower and loads heavier than the latter, where speeds are high and loads light.

3MM-WI types, manufactured with 25° contact angle, are for use on applications where the loading on the bearings is predominately thrust — and a high degree of axial rigidity is a definite requirement. Typical applications for these are large vertical rotary surface grinders, horizontal and vertical disc grinders, and thrust bearing applications for heavy duty lathes where the bearings must directly carry extremely high tail stock or chucking pressure.

2MM-WO types with 15°-18° initial contact angle are designed for extremely high-speed applications where centrifugal force of the balls is the principal load on the bearing. Unlike the MM-WI type which has a low shoulder outer ring, the 2MM-WO type has full shoulders on both sides of the outer race and a low shoulder on one side of the inner ring.

2MM-WN types with 15° initial contact angle are designed to meet the needs of machine manufacturers who require optimum oil flow through the bearings.This design incorporates a low shoulder on the non-thrust side of both the inner and outer rings.

2MMV and 3MMV 99100WN types are available with 15° or 25° contact angle variations and have been developed to operate under the demanding requirements of high speed machine tools. They incorporate design features which permit operation at higher speed than standard angular contact ball bearings. The bore, outside diameter, and width are the same as the MM9100 series.

HX Types are dimensionally interchangeable with equivalent 9100, 99100 and ISO Series-10 bearings. These designs enable spindle heads to remove more material in less time while maintaining superior machining tolerances. HX bearings come with steel or ceramic ball complements with a 15 degree standard contact angle in a WN construction design.

Ballscrew Support Bearings:
To meet the requirements of the servo controlled machinery field, Torrington has developed a new series of ball bearings specially designed for ballscrew applications.