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Linear ball bearings
Linear ball bearings are special ball bearings with several recirculating ball tracks. These bearings ensure that a machine element can move in a straight line along a shaft with little friction. Schaeffler Group Industrial offers linear ball bearings in compact, light and machined ranges.
Various linear ball bearings of the light range do not have an outer ring but several raceway plates on the outside diameter of the bearing on which the balls in the linear bearing roll. The mating track for all linear ball bearings is an INA shaft made from precision machined steel.
INA linear ball bearings allow friction-free and smooth linear movement. Possible misalignments in the adjacent construction of up to +/- 40 angular minutes can be compensated.
Solid shafts are made from quenched and tempered steel or corrosion-resistant steel. They can have various end face configurations depending on customer requirements: thes include flat ends, ground journals, threaded journals or threaded holes.
Shafts made from quenched and tempered steel have a surface hardness of 670 to 840 HV. For lightweight constructions, the shafts can also be supplied as hollow shafts.
The Schaeffler Group produces single-piece shafts up to a length of 6000 mm.
The shafts can be combined with track rollers and linear ball bearings. These linear guidance systems are very versatile, have unlimited stroke, are precise and have high load carrying capacity. They also allow high traverse speeds.