Spherical Roller Bearing Selection
Selection and RFQ review for spherical roller bearings by series, suffix, cage, clearance, bore type, application, and replacement requirement.
Selection Factors Buyers Should Confirm
Standard spherical roller bearings are usually quoted from an existing model, suffix, application, and quantity rather than from a broad catalog name alone. TFL Bearing can review common model availability, China supply options, required documents, and replacement risks after the buyer provides the current bearing details.
Series and boundary dimensions
Start with the full bearing number and boundary dimensions. Series such as 22200, 22300, 23000, 23100, 23200, 24000, and 24100 can point to different width, load, and housing requirements.
Cage type
Cage references such as CA, CC, MB, and MA should be checked with speed, load, lubrication, and replacement context before quotation.
Clearance class
CN, C3, and C4 should be reviewed with shaft fit, temperature, vibration, and the current failure mode.
Cylindrical or tapered bore
A K or K30 suffix changes the mounting path and may require adapter sleeve or withdrawal sleeve details.
Open, sealed, or shielded configuration
- Bore: Cylindrical or tapered (1:12, 1:30)
- Cage: CA (machined brass, prong-type), CC (stamped steel), MB (machined brass, window-type), MA (machined brass, outer-ring centered)
- Clearance: C2, CN, C3, C4, C5
- Sealing: Open, 2RS (double sealed), ZZ (double shielded)
- Lubrication: Standard grease, high-temperature, or customer-specified
Common SRB Series and RFQ Context
| Series | Bore Range | OD Range | Characteristics |
|---|---|---|---|
| 22200 | 25–300mm | 52–540mm | Medium-wide, general industrial |
| 22300 | 40–500mm | 90–620mm | Wide, high load capacity |
| 23000 | 25–300mm | 62–460mm | Medium-wide, lower cross-section |
| 23100 | 40–400mm | 100–620mm | Wide, very high capacity |
| 23200 | 40–400mm | 90–620mm | Extra wide, maximum load |
| 24000 | 40–300mm | 90–460mm | Wide, low cross-section |
| 24100 | 40–400mm | 100–620mm | Extra wide, low cross-section |
Application Conditions That Affect Review
Standard spherical roller bearings serve a vast range of industrial applications: fans and blowers, conveyor systems, pumps, gearboxes, paper machines, steel mill auxiliary equipment, marine propulsion, and general rotating machinery.
Shock load and vibration
Crushers, screens, and high-impact positions should include load and vibration details in the RFQ.
Heat and contamination
Steel, paper, cement, and outdoor equipment should include temperature, dust, water, and lubrication conditions.
Lubrication and maintenance access
W33, sealed, open, and relubrication requirements should be reviewed together with housing access.
Replacement brand and failure history
Send the existing brand reference and failure symptoms when the RFQ is a replacement or cross-reference request.
RFQ Details to Send
For a faster quotation, send the full model number, suffix, cage type, clearance, bore type, quantity, destination, and the brand being replaced. If the request is urgent, include the target timing and whether availability, production, sample validation, or consolidated shipment should be reviewed.
| RFQ detail | Example | Why it matters |
|---|---|---|
| full bearing model | 22222 EK/C3 W33, 22320 CAK/W33, or photo of the full marking | Identifies the series, size group, bore style, clearance reference, and starting point for quotation review. |
| full suffix / marking | K, K30, C3, C4, W33, CA, CC, MB, 2RS, or full ring marking photo | Suffixes can change bore type, clearance, cage design, lubrication groove, sealing, and replacement risk. |
| cage type | CA machined brass, CC stamped steel, MB machined brass, or unknown with photo | Cage design affects load, vibration tolerance, lubrication behavior, and suitability for screen or crusher duty. |
| clearance class | CN, C3, C4, C5, or current suffix if the clearance is not separately known | Clearance must be reviewed with shaft fit, temperature, vibration, speed, and failure history. |
| bore type | Cylindrical bore, K 1:12 tapered bore, K30 1:30 tapered bore, adapter sleeve reference | Bore style changes mounting method, sleeve requirements, shaft fit review, and replacement compatibility. |
| application equipment | crusher, vibrating screen, fan, gearbox, conveyor pulley, paper machine, or steel mill position | Application context affects load, shock, speed, contamination, lubrication, and document review. |
| quantity | 1 large bearing, 2 pcs for maintenance, 50 pcs distributor stock, or annual demand | Quantity affects quote route, packing, production planning, inspection scope, and freight review. |
| destination | Destination country, port, warehouse, distributor address, or project site region | Destination affects export documents, packing method, shipping route, and trade-term review. |
| required documents | Inspection report, material certificate, COO, RoHS / REACH statement, packing photos, buyer template | Document requirements must be confirmed before quotation because scope depends on order route and buyer template. |
| target timing | Maintenance shutdown date, urgent repair, trial order timing, or normal replenishment schedule | Timing helps separate availability review, production planning, sample validation, and consolidated shipment options. |
Request Product Line RFQ Review
Send us your specifications, drawings, and target quantities. TFL Bearing can review model fit, China supply options, available documents, and quotation details before confirming availability, production, or shipment timing.