Loads and shaft movement
State radial and axial loads, shocks, rotational speed and any shaft deflection. Self-aligning geometry does not remove the need to check housing alignment, fits or the locating and non-locating bearing arrangement.
MAINLAND BEARING · INDUSTRIAL SUPPLY
Bearing sourcing for mining conveyors and heavy machinery.
Mining purchasing teams need a bearing offer tied to an identifiable machine duty, not only a generic heavy-duty label. Mainland's 22200 spherical roller and 30200 tapered roller ranges provide starting points for model and dimension comparison. For conveyors, drives, crushers or screens, send the bearing arrangement and operating conditions for an application-specific review.
APPLICATION REVIEW01 02 03
Resolve these points before ordering.
Bore, cage and lubrication
Confirm cylindrical or tapered bore, mounting method, cage design, clearance and lubrication grooves or holes. Include grease or oil details, relubrication access and contamination control in the purchase specification.
Vibrating screens need a specific review
A standard spherical roller bearing is not automatically a vibrating-screen bearing. Vibration duty can require specific cage, clearance and tolerance choices. Request written approval for the selected configuration before substitution.
MODEL & DIMENSION COMPARISON
Catalog starting points for your review.
These are reference models, not approved selections for a specific machine. Final suitability, suffix and performance data require technical confirmation.
| Model | Bearing type | Bore d (mm) | Outside D (mm) | Width B/T (mm) | Details |
|---|---|---|---|---|---|
| 22208 | Spherical Roller Bearing | 40 | 80 | 23 | View specifications → |
| 22210 | Spherical Roller Bearing | 50 | 90 | 23 | View specifications → |
| 22212 | Spherical Roller Bearing | 60 | 110 | 28 | View specifications → |
| 30210 | Tapered Roller Bearing | 50 | 90 | 21.75 | View specifications → |
PROCUREMENT QUESTIONS
Before you choose a replacement.
Does matching a 22200 designation prove interchangeability?
No. The base designation is a starting point. Internal design, cage, bore, clearance, lubrication features and the actual duty must also agree.
Can Mainland publish a load rating for my selected configuration?
Request the released technical sheet for the complete order code. Public RFQ pages currently provide boundary dimensions; configuration-specific C, C0 and speed limits require engineering confirmation.
Further technical reading: NTN mining equipment bearing guide. Third-party guidance explains selection principles; it does not establish Mainland product ratings or endorsements.