Linear bearings and linear bearing and housing ╳
See Mounting dimenstions units are available in the compact, light, heavy duty, machined and plain bearing range. The bearings can support high loads while having a relatively low mass and allow the construction of linear guidance systems with unlimited travel.

Each series has quite specific characteristics that makes it particularly suitable for certain applications. These may include, for example, requirements for compensation of misalignments, low‑friction running, high accelerations and travel speeds or long operating life.

The range, which has been constructed and expanded in accordance with a modular concept, provides the best technical and economic solution, in relation to each application, for bearing arrangements with shaft guidance systems.

Linear ball bearings and linear plain bearings are available in open or closed designs. The open design has a segment cut out and is intended for supported shafts. Several series allow, in conjunction with the corresponding housings, adjustment of the radial clearance in order to achieve clearance-free or preloaded guidance systems.

Misalignment can be caused by tolerance defects, mounting errors or inaccuracies in the adjacent construction. Linear ball bearings of series KN..-B and KNO..-B can compensate static misalignment ╳
Deviation of an actual line from a theoretical ideal line, for example a bearing axis from the shaft axis; may be due to machining, flexing of shaft or deformation of housing. of up to ±30′, linear ball bearings of series KS and KSO up to ±40′, Figure 1.

Due to the self-alignment function, the balls run without difficulty into the load ╳
Load which, for example, is to be supported at a friction point. Also strain from pressure and/or heat.

See Contact surface zone. At the same time, the load ╳
Load which, for example, is to be supported at a friction point. Also strain from pressure and/or heat.

See Contact surface distribution over the whole ball row is more uniform. This leads to smoother running, allows higher accelerations and prevents overloading of the individual balls.

Overall, this means that the bearings can achieve higher loads and a longer operating life; if necessary, the adjacent construction ╳
The immediate environment of the bearing; the bearing and adjacent construction have a reciprocal influence on each other can be designed to be smaller and more economical.

In order to fully utilise the basic load ╳
Load which, for example, is to be supported at a friction point. Also strain from pressure and/or heat.

See Contact surface ratings given in the dimension table, the shaft raceway must be hardened (670 HV + 170 HV) and ground. Please observe the information in the section Design of bearing arrangements,   link.

Linear ball bearings and plain bearings are also available in conjunction with INA housings as complete bearing units. The linear bearing is located in the housing ╳
See Mounting dimenstions by means of a radial fixing screw to prevent axial displacement.

The housings are made from a high rigidity, high strength ╳
See Viscosity aluminium alloy that allows the full load ╳
Load which, for example, is to be supported at a friction point. Also strain from pressure and/or heat.

See Contact surface carrying capacity of the bearings fitted to be utilised. In the machined series, pressure diecast housings are also available.

Due to the comparatively low total mass, the units are particularly suitable for reduced mass designs with high loads and where higher accelerations and travel speeds are required.

Threaded or counterbored holes in the housing ╳
See Mounting dimenstions allow straight­forward screw mounting on the adjacent construction, if necessary from below.

For rapid alignment, the housings have a locating edge. This also prevents distortion of the linear bearings when the housings are being mounted.

Centring holes allow rapid additional location by dowels on the adjacent construction.

The housings are available in closed design, with a segment cutout and in open, slotted and tandem versions (with and without a centring collar).

In this variant, the bearing and housing ╳
See Mounting dimenstions are closed. High precision standard guidance systems with a fixed enveloping circle can thus be easily achieved.

Open designs with a segment cutout are used where, in the case of long guidance systems, the shaft must be supported and the bearing arrangement must be highly rigid.

Closed designs and designs with a segment cutout are also available in several series with a slot. Slotted variants are suitable for clearance-free or preloaded guidance systems. The operating clearance is set by means of an adjusting screw.

The tandem version contains two linear bearings. As a result, the units have particularly high load ╳
Load which, for example, is to be supported at a friction point. Also strain from pressure and/or heat.

See Contact surface carrying capacity.

Tandem ball bearing and housing ╳
See Mounting dimenstions units are available in open and closed designs. Both variants are also available in the named design with a slot.

For special applications, there is also a tandem version with a centring collar for locating bores to H7.

As a result of volume production in large quantities, the complete units are normally considerably more economical than customers’ own designs.

The bearings are available in an open version and with contact seals ╳
Elements intended to prevent the ingress of gaseous, fluid and solid materials through the gaps formed by adjacent components whilst stationary or moving.

See
Seal
Operating life
Friction on both sides (suffix PP). The end face seals ╳
Elements intended to prevent the ingress of gaseous, fluid and solid materials through the gaps formed by adjacent components whilst stationary or moving.

See
Seal
Operating life
Friction have two seal ╳
Elements such as axial face seal, labyrinth seal, rotary shaft seal or gap seal which prevent the ingress of gaseous, liquid and solid materials through the gaps between combined components during movement or whilst stationary lips; the outer lip prevents the ingress of contamination, the inner lip retains the lubricant in the bearing.

Due to the initial greasing with a high quality ╳
See DIN 55 350 part 11 and ISO 8402 for terminology and definitions. grease ╳
See
Lubricant
Grease cartridge
Fatty acids and the integral lubricant reservoir, the linear bearings are maintenance-free for many applications; if necessary, however, they can be relubricated.

Linear ball bearings can be lubricated, depending on the design, via the openings in the outer ring or radial holes arranged in the centre of the bearing.

In the units, lubrication ╳
Feed of fresh lubricant to friction points. Fresh lubricant mixes with used lubricant at the friction point. Lubricant feed is by means of lubrication equipment. The time period for relubrication is shorter than that for the lubricant change interval.

See
Lubrication method
Lubrication condition
Recirculating lubrication
Lubrication technology
One-off lubrication
Hydrodynamic lubrication
Lubricant change intervall
Lubricant change
Lubricant
Lubricant paste
Oil
Grease
Lubrication film
Lubrication system is carried out via a separate lubrication ╳
Feed of fresh lubricant to friction points. Fresh lubricant mixes with used lubricant at the friction point. Lubricant feed is by means of lubrication equipment. The time period for relubrication is shorter than that for the lubricant change interval.

See
Lubrication method
Lubrication condition
Recirculating lubrication
Lubrication technology
One-off lubrication
Hydrodynamic lubrication
Lubricant change intervall
Lubricant change
Lubricant
Lubricant paste
Oil
Grease
Lubrication film
Lubrication system nipple in the housing; location of the bearing in the housing ╳
See Mounting dimenstions and the relubrication devices are thus separate from each other.

Bearings and housings can be used at operating temperatures from –30 °C to +80 °C.

The table shows the operating limits for linear bearings.

Once the interrelationships of bearing size and design, load, operating clearance, location of bearings and lubrication ╳
Feed of fresh lubricant to friction points. Fresh lubricant mixes with used lubricant at the friction point. Lubricant feed is by means of lubrication equipment. The time period for relubrication is shorter than that for the lubricant change interval.

See
Lubrication method
Lubrication condition
Recirculating lubrication
Lubrication technology
One-off lubrication
Hydrodynamic lubrication
Lubricant change intervall
Lubricant change
Lubricant
Lubricant paste
Oil
Grease
Lubrication film
Lubrication system have been checked, it may be possible in individual cases to use higher values. Please contact us in this case.

Linear bearing and housing units should be allocated in accordance with the linear bearing fitted.

Suffixes for available designs: see table.

Linear ball bearings of the heavy duty range KS and KSO and the corresponding ball bearing and housing ╳
See Mounting dimenstions units have particularly high load ╳
Load which, for example, is to be supported at a friction point. Also strain from pressure and/or heat.

See Contact surface carrying capacity and have an angular adjustment facility for compensation of misalignments. They have very good running characteristics.

Linear ball bearings KS and KSO comprise a plastic cage ╳
The part of a rolling bearing which separates, retains and, where necessary, guides the rolling elements with loosely retained segments. The double row segments with crowned raceway plates can realign themselves in all directions and thus compensate misalignments. Since the complete segment undergoes realignment, there is no disruption to the recirculation of the balls. This results in uniformly low displacement resistance.

The series KS is of a closed construction and is designed for use on shafts. KSO has a segment cutout and is used in conjunction with shaft and support rail units.

The bearings are available with contact seals ╳
Elements intended to prevent the ingress of gaseous, fluid and solid materials through the gaps formed by adjacent components whilst stationary or moving.

See
Seal
Operating life
Friction or gap seals. The end face contact seals ╳
Elements intended to prevent the ingress of gaseous, fluid and solid materials through the gaps formed by adjacent components whilst stationary or moving.

See
Seal
Operating life
Friction have two seal ╳
Elements such as axial face seal, labyrinth seal, rotary shaft seal or gap seal which prevent the ingress of gaseous, liquid and solid materials through the gaps between combined components during movement or whilst stationary lips; the outer lip prevents the ingress of contamination, the inner lip retains the lubricant in the bearing.

Linear ball bearing and housing ╳
See Mounting dimenstions units of the heavy duty range are available with an integral bearing and, in the tandem version with particularly high load ╳
Load which, for example, is to be supported at a friction point. Also strain from pressure and/or heat.

See Contact surface carrying capacity, with two bearings.

The housings are made from high strength ╳
See Viscosity aluminium.

The housings are available in a closed design, with a segment cutout for supported shafts and with or without a slot. In designs with a slot, the radial clearance can be adjusted by means of an adjusting screw.

All series have a locating edge and centring holes for dowel holes.

The bearings are sealed on both sides, they have an initial greasing and can be relubricated via a lubrication ╳
Feed of fresh lubricant to friction points. Fresh lubricant mixes with used lubricant at the friction point. Lubricant feed is by means of lubrication equipment. The time period for relubrication is shorter than that for the lubricant change interval.

See
Lubrication method
Lubrication condition
Recirculating lubrication
Lubrication technology
One-off lubrication
Hydrodynamic lubrication
Lubricant change intervall
Lubricant change
Lubricant
Lubricant paste
Oil
Grease
Lubrication film
Lubrication system nipple in the housing.