Pick Your Bearing Application.

INA bearing selections for machine tools, automotive lines, packaging axes, steel mills, conveyors and service parts.

  • Machine Tools
  • Automotive
  • Packaging
  • Steel
  • Conveyors
  • MRO
Schematic of machine tool spindle and linear axis bearing points

Machine tools and precision automation

Machine-tool builders need stiff linear motion, compact radial support and predictable preload. INA linear bearings and needle roller bearing sets are reviewed against rail straightness, carriage moment load, spindle duty, lubricant condition and mounting accuracy. Where an axis sees short oscillation instead of full rotation, we flag the risk of false brinelling and recommend lubrication intervals or alternate cage styles before release.

For automotive transfer lines and packaging machines, the selection logic changes. Bearing substitutions must be available globally, documented for receiving inspection and stable across repeated purchase orders. We therefore capture preferred series, approved alternates, certificate needs and drawing notes in the RFQ record.

Steel and conveyor applications add another layer of risk because contamination, shock load and long idle periods can be more important than catalog speed. In those cases the review asks for sealing condition, relubrication access, shaft shoulder design and whether a thrust washer or hardened raceway is already present. MRO teams also receive interchange notes that separate dimensional fit from functional fit, since a bearing that shares bore and width can still fail if internal clearance, cage material or washer hardness is wrong for the duty cycle.

  • Linear guide carriages for pick-and-place axes with preload class notes
  • Needle roller bearings in compact cam followers and indexing stations
  • Thrust bearing washer sets for screw drives and clamping units

Needle series

HK, BK, NK and NKI families for small radial envelopes.

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Linear guides

Rail and carriage systems for controlled moment loads.

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Thrust sets

AXK and washer combinations for axial load paths.

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"The useful part was the fit note. It told maintenance why the previous substitute failed after only 11 weeks." - Plant Reliability Engineer, Packaging OEM
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Specified into precision equipment programs worldwide

Machine tool OEM Automotive automation integrator Packaging line builder Steel mill maintenance group Global MRO distributor

Not sure which bearing family fits?

Send the machine envelope, load case and current part number. We will review the application and respond with a documented path.