Self-Aligning Bearings
Self-aligning ball and spherical roller bearings that tolerate shaft misalignment.
Self-aligning bearings for shafts that cannot be kept true - long lines, soft structures, mounted units. They accommodate a couple of degrees of misalignment instead of loading the race edge.
4–6 weeks
10 pieces
ISO 9001:2015
Technical Specifications
| Parameter | Value | Unit |
|---|---|---|
| Misalignment capacity | 2–3 | ° |
| Bore range | Ø20–Ø300 | mm |
| Precision class | P0–P5 | - |
| Load capacity | High radial | note |
| Housing | Plummer block options | - |
| Sealing | Labyrinth or lip | available |
Available Materials
- Bearing steel 52100
- Case-hardening steel 8620
- Brass cages
- Stainless 440C
Typical Applications
- Conveyor line shafts
- Fan and blower shafts
- Long drive shafts
- Agricultural machinery
- Mounted bearing units
Surface Finishes
- Ground races
- Black oxide
- Passivate
- Pre-lubricated
- Sealed
Industries Served
- Industrial Equipment
- Agricultural Machinery
- Mining & Construction
- Water Treatment
- Food Processing
What drives the price of this part
Derived from the callouts on this page. Where a driver is not on the drawing, it is not on this list.
- Part size
- Bore range at Ø20–Ø300 mm decides which machine the part lands on and how many setups it needs. Size is the driver buyers most often leave out of a first enquiry, and it is the one that changes the quote fastest.
- Material
- The first material listed, Bearing Steel 52100 (100Cr6), rates 4/10 on our machinability scale at 60–66 HRC hardened · 183–217 HB annealed. On this shop's scale a harder alloy means slower passes and more tool changes, and that is cycle time the quote has to carry.
- Order size
- Minimum order is 10 pieces, so on a first order setup and programming are spread over very few parts and they are most of the price. Repeat orders at the same quantity are cheaper without anything on the drawing changing.
See how cycle time is calculated in the machining time calculator and what else moves a price in the cost driver reference.
How these parts are inspected
Matched to the callouts above and the instruments actually on the floor.
- Coordinate measuring machine (Zeiss CONTURA G2, two machines, GR&R 8.4% on the critical feature)
- Dimensional report against the drawing, with a 100% check on critical features rather than a sample
- Certificate of conformance and the mill certificate with every shipment
- Bore gauges and an optical comparator for hole position and edge form
The full equipment list, with counts, is on the capability page; the inspection sequence is on quality and inspection.
Questions buyers ask
- Should a self-aligning bearing be used to fix a misalignment problem?
- It handles a small one, not a big one. If the shafts are out by more than a couple of degrees the bearing will run hot and wear - fix the alignment or fit a coupling.
Related part families
Roller Bearings
Cylindrical, tapered and needle roller bearings for radial loads a ball bearing cannot carry.
Bearing Housings
Machined housings with bearing seats bored to H7, coaxial to 0.01 mm across the pair.
Coupling Assemblies
Rigid, flexible and jaw couplings bored to fit your shafts, with keys and inserts fitted.