PBA Catalog
Insert Ball Bearings Housed Bearing Units
Radial Insert Ball Bearings (
)

- The ball-based guidance systems with the highest load carrying capacity and rigidity
- 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
- The outer ring has a crowned or cylindrical outside surface. In conjunction with an INA housing matched to the bearing type, bearings with a crowned outside surface compensate for shaft misalignments
- They are located on the shaft by means of an eccentric locking collar, grub screws in the inner ring, an adapter sleeve, drive slot or fit. Radial insert ball bearings are particularly easy to fit, suitable for drawn shafts of grade h6 to h9 and, with a few exceptions, can be relubricated
Download Official INA insert Ball Bearings Catalogs
Roller Chain Idler Sprocket Units Idler Pulley Units (
)

- 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
- The ready-to-fit units comprise chain sprockets and deep groove ball bearings. The chain sprockets are made from high strength steel, sintered iron or plastic (polyamide)
- Chain sprockets made from plastic give especially smooth and quiet operation. Since the inner ring of the deep groove ball bearing is extended on both sides, no additional spacer rings are necessary
- In series KSR..BO, the inner ring is locating on the shaft by means of a locking collar. The bearing bore of this series has a plus tolerance. As a result, unmachined shafts up to ISO tolerance h9 can be used under moderate loads and speeds
Download Official INA insert Ball Bearings Catalogs
Housing Units (
)

- Available in many different designs as plummer block, flanged and take-up housing units. The ready-to-fit units comprise 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 the spherical housing bore, INA housing units can compensate for static angular misalignment of the shaft; see Compensation of misalignments.
- The units are used predominantly as locating bearings, but can also be used as non-locating bearings under low loads and speeds
- The housings are screw mounted on the adjacent construction. Less demanding tolerances are sufficient for the screw mounting surfaces
