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21300 Model Page TFL Bearing
21312 Bearing
Exact compact-model route for buyers checking 21312 suffix, bore type, clearance, application, shaft or housing context, current model, quantity, and destination.
Model: 21312
Series: 21300
RFQ: Model + suffix
21312 Bearing Sourcing Notes
21312 bearing searches usually come from buyers who already have a compact 21300 series model and need dimensions, suffix, clearance, bore type, and quote context before comparing the broader 21300 series route.
For B2B replacement and RFQ work, confirm the model, review candidate alternatives, and prepare the technical details buyers normally need before a quote.
Selection Checks
- Confirm the full 21312 marking, including suffix, bore type, and clearance if shown.
- Send the application, shaft or housing context, and photos of the current bearing when available.
- Use the 21300 series page for broader compact series routing and keep the RFQ details specific to exact 21312 requirements.
Specification Review
| Item | Typical RFQ Value | Why It Matters |
|---|---|---|
| Model | 21312 | Exact model route for compact 21300 series sourcing. |
| Specification check | Dimensions, suffix, bore type, clearance | These details affect fit and quote review. |
| RFQ task | Compact equipment fit | Application and shaft context help screen replacement risk. |
Common Applications
- Industrial fans
- Gear reducers
- Textile machinery
- Compact industrial equipment
Related Technical and RFQ Pages
Send a complete RFQ for 21312 Bearing
Include these details so TFL Bearing can review fit, available documents, and sourcing options without unnecessary back-and-forth.
- suffix
- bore type
- clearance
- application
- shaft or housing context
- current brand/model
- quantity
- destination
RFQ Details to Send
Send these details so TFL Bearing can review the model, suffix, cage, clearance, bore type, application, documents, and quotation route before confirming current availability or production options.
| 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. |
| bearing position | drive side, non-drive side, screen exciter, crusher pitman, fan shaft, gearbox input shaft | Bearing position helps review load direction, vibration exposure, access for lubrication, and failure risk. |
| current brand / model | SKF 22222 EK/C3, FAG 22320-E1-K, NSK 22320EAKE4, or photo if unclear | Brand and model references help identify suffix conventions and avoid assuming equivalence from dimensions alone. |
Request 21300 Model Page 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.