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INA Rolling and Plain Bearings

INA Rolling & Plain Bearings
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INA Bearing Company is a division of The Schaeffler Group that is associated with the production of high quality roller bearings, plain bearings and linear components. INA Bearing Company also manufactures a wide range of precision parts for car engines, transmission and power trains to meet the needs of the automotive industry.

INA Bearing Company was founded in 1946 by Dr. Georg Schaeffler, the inventer of the needle roller bearing with cage assembly. INA Bearing now uses 63 manufacturing facilities around the globe which makes INA Bearing competitive in a volatile global marketplace.

INA Rolling and Plain Bearings

INA Thin Section Bearings
INA Thin Section Bearing

Thin section bearings have high precision, low noise, and a high load carrying capacity. These ball bearings are available in three different designs and have an extremely small, predominantly square cross-section. Thin section bearings are available as deep groove ball bearings (C), four point contact bearings (X) and angular contact ball bearings (E). Each of these designs is available in various series. The series correspond to the cross-section sizes. The balls are matched to the series.

INA Ball Roller Bearings

Ball roller bearings are a new and innovative rolling bearing series based on a simple “slimming plan”, which means the removal of all areas of the ball not under load. 15 % is cut off on both sides of the ball, producing a “flattened” ball that is 30 % narrower. This produces a new rolling element with new technical characteristics and advantages in completely new dimensions.

  • INA Series BXRE Single Row Ball Roller BearingINA Series BXRE single row ball roller bearings have a high load rating, dimensions in accordance with DIN 625-1; a long rating life; and downsizing capability.
  • INA Series BXRO double row ball roller bearings in O arrangement are double row bearings with rows of rolling elements in an ‘O’ arrangement. They can support both radial and axial forces. Benefits include: an increase in performance compared with series 32 ball, and an increase in rating life.
  • Series BXRT double row ball roller bearings in tandem arrangement require less space and have lower friction; and offer an alternative to tapered roller bearings.
Cylindrical Roller Bearings
  • Cylindrical roller bearings with cage are units made up of solid inner and outer rings with cylindrical roller and cage assemblies. The outer rings have rigid ribs on both sides or are without ribs, the inner rings have one or two rigid ribs or are designed without ribs. The cage prevents the cylindrical rollers coming into contact with each other during rolling.
  • Low-friction cylindrical roller bearings are LSL and ZSL are single row, self-retaining and correspond to dimension series 23. The bearings have solid outer rings with two ribs, while the inner rings have one rib. The inner ring can be removed and this gives easier fitting of the bearings. Disc cages or spacers prevent the cylindrical rollers coming into contact with each other during rolling.
  • INA_Cylindrical_Roller_Bearing_Ncp205_BearingHigh precision cylindrical roller bearings are double row precision bearings for machine tools. They allow radially rigid, high precision bearing arrangements and are mainly used for the radial support of main spindles. The bearings consist of solid outer rings without ribs, solid inner rings with three ribs and cylindrical roller and cage assemblies with solid brass cages.
  • Full complement cylindrical roller bearings are have solid inner and outer rings and rib-guided cylindrical rollers. Since these bearings have the largest possible number of rolling elements, they have high radial load carrying capacity and high rigidity, and are suitable for compact designs. Because of their kinematic conditions, they cannot achieve the high speeds possible using cylindrical roller bearings with cage. Full complement cylindrical roller bearings are available as non-locating, semi-locating and locating bearings and in single and double row designs.
  • Cylindrical roller bearings with snap ring grooves are full complement, self-retaining units comprising solid inner and outer rings, rib-guided cylindrical rollers and sealing rings. The outer rings have grooves for retaining rings. The inner rings are axially split, 1 mm wider than the outer rings and are held together by a steel strip that is rolled into place.
INA Needle Roller and Cage Assemblies
  • Drawn cup needle roller bearings with open ends/closed ends are units comprising thin-walled drawn outer rings and needle roller and cage assemblies. Drawn cup need roller bearings with open ends are also available in full complement versions. The majority of the bearings are single row designs.
  • INA Needle Roller BearingsNeedle roller bearings with ribs are single or double row units made up of  machined outer rings with ribs, needle roller and cage assemblies and removable inner rings. The bearings are available in open and sealed versions. Needle roller bearings with ribs are X-life bearings. In these bearings, the roughness and geometrical accuracy of the raceways have been optimized. This gives higher load carrying capacity and longer life.
  • Needle roller bearings without ribs are single or double row units made up of machined outer rings without ribs, needle roller and cage assemblies and removable inner rings. The bearings are not self-retaining which means the outer ring, needle roller and cage assembly and inner ring can be fitted independently. Needle roller bearings without ribs are X-life bearings in which the roughness and geometrical accuracy of the raceways have been optimized, providing for a higher load carrying capacity and longer life.
  • Aligning needle roller bearings are units made up of drawn outer cups, plastic support rings with a concave inner profile, outer rings with a spherical outside surface, needle roller and cage assemblies and removable inner rings. The bearings can compensate static shaft misalignments and can thus tolerate misalignment of the shaft relative to the housing. Aligning needle roller bearings are firmly seated in the housing bore.
  • Combined needle roller bearings are units comprising radial needle roller bearings with a rolling bearing component capable of supporting axial loads. Combined needle roller bearings are X-life bearings. In these bearings, the roughness and geometrical accuracy of the raceways have been optimized. This gives higher load carrying capacity and longer life.
  • Inner rings are made from hardened rolling bearing steel and have precision machined or ground raceways. They are used where the shaft cannot be used as a raceway with needle roller and cage assemblies, drawn cup needle roller bearings with open ends, drawn cup needle roller bearings with closed end and needle roller bearings; or needle roller bearings must be combined with wider inner rings in order to facilitate axial displacement of the shaft in relation to the housing; or optimum running surfaces are required for the seal lips.
  • Inner rings, precision machined are the raceway is precision machined. Chamfers on the end faces allow easy insertion into the bearings and prevent damage to the seal lips of the bearings. The inner rings are available with and without a lubrication hole.
  • Inner rings, ground are the raceway is ground. The end faces are turned and the edges are broken. These rings have larger tolerances than the rings of series IR. They are therefore suitable for applications that permit larger tolerances for width and less demanding requirements for axial runout.
  • Drawn cup roller clutches are one-way clutches made up of thin-walled, drawn outer rings with a series of ramps on the inside diameter, plastic cages, springs and needle rollers. They can transmit torques in one direction and are radially compact. The roller clutches are available with and without a bearing assembly.
  • Sealing rings are designed as contact seals that protect the bearing position against contaminants, spray water, and excessive loss of grease. Sealing rings are matched to the small radial dimensions of drawn cup needle roller bearings and needle roller bearings. They are easy to fit: simply pressed into the housing bore. Sealing rings allow circumferential speeds at the seal lip of up to 10 m/s, dependent on the surface quality of the shaft.
INA Axial Angular Contact Ball Bearings

Axial angular contact ball bearings(double direction) are non-self-retaining precision bearings with restricted tolerances to class SP. They include 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.

Axial cylindrical roller bearings/Axial cylindrical roller and case assemblies/Axial needle roller bearings

  • Axial cylindrical roller bearings include axial cylindrical roller and cage assemblies and shaft and housing locating washers. The bearings have particularly small axial section height, have high load carrying capacity and high rigidity and can support axial forces in one direction.
  • Axial cylindrical roller and cage assemblies include axial cages with one or two rows of cylindrical rollers. The cage assemblies have particularly small axial section height, high load carrying capacity and high rigidity. They can support axial force from one direction and act as non-locating bearings in a radial direction. Axial cage assemblies are combined with housing or shaft locating washers or are integrated directly in the adjacent construction. If they are used without axial bearing washers, the raceway must be produced as a rolling bearing raceway.
  • Housing locating washers are produced by machining, the outside surface is ground and the running surface is high precision machined. They are housing located and are combined with axial cage assemblies if the adjacent surface cannot be used as a raceway.
  • Shaft locating washers are produced by machining, the bore is ground and the running surface is high precision machined. They are shaft located and are combined with axial cage assemblies if the adjacent surface cannot be used as a raceway.
  • Bearing washers can be used as housing and shaft locating washers. The bore and outside surface are turned, the running surface is ground.

INA Axial needle roller and cage assemblies

Axial needle roller and cage assemblies/Axial bearing washer/Axial needle roller bearings

  • Axial needle roller and cage assemblies comprise plastic or metal axial cages with integrated needle rollers and have a very small axial section height. They can support high axial forces in one direction. Radial loads must be supported by separate means. Axial needle roller and cage assemblies require hardened and ground axial running surfaces for use as raceways.
  • Axial bearing washers are punched, through hardened and polished and can be used as shaft or housing locating washers. These washers are suitable if the adjacent machine part is unhardened but is sufficiently rigid and geometrically accurate.
  • Axial needle roller bearings are units comprising axial needle roller and cage assemblies and axial bearing washers with a centering spigot. They can be combined with drawn cup needle roller bearings and needle roller bearings. The axial running surface for the needle roller and cage assembly must be hardened and ground.
INA Crossed Roller Bearings

Crossed roller bearings are bearings for precision applications that correspond in their dimensions to ISO dimension series 18 in accordance with DIN 616. They include outer rings, inner rings, rolling elements and plastic spacers. The outer ring is split and is held together by three retaining rings.

INA Slewing Rings

Slewing rings are known worldwide as premium products in the field of rolling bearing technology. These machine elements have high load carrying capacity, a versatile range of applications and are highly cost-effective. Due to their design, a single bearing can support radial, axial and tilting moment loads making it possible to replace bearing arrangements consisting of a combination of radial and axial bearings with a single bearing. This lowers the costs and work required in the design of the adjacent construction and the fitting of bearings.INA Yoke type track rollers

INA Yoke Type Track Rollers (roller type)/Stud Type Track Rollers (roller type)
  • Yoke type track rollers are single or double row units fitted on studs. They comprise thick-walled outer rings with a profiled outside surface and needle roller and cage assemblies or full complement sets of cylindrical or needle rollers. Yoke type track rollers can support high radial loads and axial loads arising from misalignments and skewed running and are suitable for cam drives, slideways, conveying equipment etc. The bearings are available with or without an inner ring and in open and sealed versions.
  • Stud type track rollers comprise thick-walled outer rings with a profiled outside surface, solid roller studs with a locating thread, thrust washers and needle roller and cage assemblies or single or double row full complement sets of cylindrical or needle rollers. They can support high radial loads and axial loads arising from misalignments and skewed running and are suitable for cam drives, slideways, conveying equipment etc. The bearings are available in several designs and with or without an eccentric.
INA Track Rollers

Track rollers are self-retaining, single or double row units with thick-walled outer rings which can support axial forces in both directions and high radial forces. The bearing outer rings have a crowned or cylindrical outside surface. Designs with a crowned outside surface are used where there is misalignment in relation to the raceway and edge stresses must be avoided. The track rollers are available with an inner ring, with a stud and with a plastic tire on the outer ring.

INA Bearings for Screw Drives

Bearings for screw drives are subject to requirements that often cannot be fulfilled by conventional bearings because of their design and construction. INA/FAG maintains a wide range of axial angular contact ball bearings for the design of maintenance-free or low-maintenance bearing arrangements; and for the highly dynamic operating conditions of screw drives that are precise, have high load carrying capacity, high rigidity and low friction and are easy to fit.

  • Axial angular contact ball bearings are available in single row, double row or triple row ready-to-fit units. They are self-retaining and include thick-walled, geometrically stable outer rings, ball and cage assemblies and single-piece or two-piece inner rings. In several series, the outer ring has through holes for straightforward flange mounting of the bearing to the adjacent construction. The bearing rings are matched to each other such that a defined preload is achieved once the rings are clamped by means of a precision locknut.
  • INA Needle roller/axial cylindrical roller bearingNeedle roller/axial cylindrical roller bearings are consist of an outer ring with radial and axial raceways, two shaft locating washers, an inner ring, a radial needle roller and cage assembly and two axial cylindrical roller and cage assemblies. The bearings are available in versions that are suitable or unsuitable for screw mounting.
  • Seal carrier assemblies/Precision locknuts are screwed to the centre washer of needle roller/axial cylindrical roller bearings and precisely centered there. They seal the bearings from the outside. The sealing elements are supplied as a complete set and comprise a seal carrier with an integral rotary shaft seal, a gasket and socket head cap screws for mounting the carrier on the centre washer of the bearing.
INA Rotary Table Bearings
  • Axial radial bearings/Axial angular contact ball bearings are ready-to-fit high precision bearings for high precision applications with combined loads. They can support radial loads and axial loads from both sides and tilting moments and are particularly suitable for bearing arrangements with high requirements for running accuracy, for example in rotary tables, face plates, milling heads and reversible clamps. Due to the fixing holes in the bearing rings, the units are very easy to fit. The bearings are radially and axially preloaded after fitting.
  • Axial/radial bearings with integral measuring system are include: an axial/radial bearing YRTM with a dimensional scale and a MEKO/U electronic measuring system. The electronic measuring system contains two measuring heads, a set of shims and an electronic evaluation system. Bearings of series YRTM correspond in mechanical terms to axial/radial bearings YRT but are additionally fitted with a magnetic dimensional scale. The measuring system can measure angles to an accuracy of a few angular seconds by non-contact, magneto-resistive means.
INA Radial Insert Ball Bearings/Housing Units/Roller Chain Idler Sprocket Units/Idler Pulley UnitsINA Radial insert ball bearing
  • Radial insert ball bearings are single row, ready-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.
  • Housing units are available in many different designs as plummer block, flanged and take-up housing units. The ready-to-fit units consist of INA cast iron or INA sheet steel housings in which the INA radial insert ball bearings are integrated. In order to ensure correct function and operational reliability in all operating conditions, the bearing and housing are matched to each other. Due to the spherical outside surface of the bearing outer ring and
  • Roller chain idler sprocket units idler puller units are chain guidance and return units for roller bush chains and roller chains. They compensate chain stretch resulting from operation and improve the smoothness of running of the system at high loads and speeds.
INA ELGES Spherical Plain Bearings, Rod Ends
  • Maintenance-free ELGES spherical plain bearings/Cylindrical plain bushes are used where there are particular requirements for operating life or where bearings with a metallic sliding contact surface are not suitable for lubrication reasons, e.g. under unilateral load. Spherical plain bearings allow spatial adjustment movements and, depending on the bearing type (radial, angular contact or axial spherical plain bearing), can support, radial, combined or axial loads.
  • INA ELGES spherical plain bearingELGES spherical plain bearings requiring maintenance must be lubricated because of the steel/steel or steel/bronze sliding contact surface. The lubricant reduces friction, decreases wear, increases the operating life and gives protection against corrosion. When designing the bearing arrangement, it must be ensured that the bearing position is adequately provided with grease. The bearings are available as radial, angular contact and axial bearings
  • Maintenance-free ELGES rod ends consist of a housing with an integral shank and a maintenance-free spherical plain bearing. The housing with integral shank has an external or internal thread. The spherical plain bearing is firmly seated and located in the housing. Rod ends are protected against corrosion by a zinc plating.
  • ELGES rod ends requiring maintenance include a housing with an integral shank and a spherical plain bearing requiring maintenance. The housing with integral shank has an external or internal thread. The spherical plain bearing is firmly seated and located in the housing. Rod ends are protected against corrosion by a zinc plating.
  • ELGES hydraulic rod ends are fitted with radial spherical plain bearings GE..-LO or GE..-DO. They have a steel/steel sliding contact surface, can support radial forces in a tensile or compressive direction, transmit movements and forces with low moment levels and are suitable for alternating radial loads. The rod ends can be screwed into place by means of a thread in the shank or welded in place by means of round or square welding faces.
INA Metal-Polymer Composite Plain Bearings

INA Metal Polymer Plain BearingMetal-polymer composite plain bearings replace the standard Permaglide® plain bearing previously used. The new INA metal-polymer composite plain bearings enable economical solutions in many industrial and automotive applications and are very effective with oscillating movements. These bearings can achieve a rating life many times longer than bearings made with conventional materials. Plus, all INA new plain bearings are lead-free and environmentally friendly. Different innovative materials ensure unprecedented variety. A selection of bearings with maintenance-free and low-maintenance materials are available under the designations E40 and E50.