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KO Typical Equipment
- Industrial fans and blowers
- Conveyors and process machinery
- Textile equipment
- General industrial gearboxes
All Products
Spherical Roller Series TFL Bearing
21300 Series Spherical Roller Bearings
A general-purpose SRB section with more outside diameter than many 22200 models at the same bore code; check the actual boundary dimensions before substitution.
Series: 21300
Type: SRB
Enquiry: Model + suffix
21300 Series Overview
A general-purpose SRB section with more outside diameter than many 22200 models at the same bore code; check the actual boundary dimensions before substitution.
Confirm the full model, suffix, clearance, bore type, application, and quantity before ordering or assessing a replacement.
Section and Construction
A general-purpose SRB section with more outside diameter than many 22200 models at the same bore code; check the actual boundary dimensions before substitution.
- Two rows of symmetrical rollers running on a common spherical outer-ring raceway.
- Available configurations can include cylindrical bore or K tapered bore, with manufacturer-specific cage and lubrication suffixes.
- Useful where radial load, moderate axial load, and shaft or housing misalignment occur together.
Configuration Options
| Item | Series guidance | Confirm before order |
|---|---|---|
| Bore | Cylindrical bore or K tapered bore, depending on model and manufacturer. | Shaft diameter, taper, sleeve, and full suffix. |
| Cage / internal design | Steel or brass cage designs may be offered; match the full suffix and operating conditions. | Cage code, load ratings, speed, temperature, and vibration. |
| Internal clearance | CN, C3, and other clearance classes must be selected with fit, temperature, and speed. | Fits, operating temperature, speed, and measured residual clearance. |
| Model range | 213xx designation family. Detailed pages are published for 21310 and 21312; send another complete 213xx marking for confirmation. | Complete model, suffix, marking photo, quantity, and application. |
Adjacent Series Differences
- 22200 Series
- Usually a smaller radial section at a comparable bore code; compare D, B, ratings, and housing space.
- 22300 Series
- A heavier radial section used when the load and housing envelope justify a larger bearing.
Exact Models
Published Dimensions and Ratings
Open a 21300 Series model to compare dimensions, design references, load ratings, speed references, mass, mounting data, and calculation factors.
For another model, send the full bearing number or a clear marking photo.
Request model data →What to Confirm Before Ordering
- Provide the full bearing number, including suffixes such as K, C3, C4, CA, CC, MB, or W33.
- Confirm whether the quote is for original replacement, brand interchange, or spare availability planning.
Specification Checklist
| Item | Value to confirm | Why it matters |
|---|---|---|
| Series focus | 21300 Series | General section series used for industrial replacement sourcing. |
| Common check | Bore, cage, clearance | Suffix details can change fit, load behavior, and lubrication. |
| Order detail | Model confirmation | TFL can review candidate alternatives and document requirements. |
Common Applications
- Industrial gearboxes
- Fans and blowers
- Mining equipment
- Paper and steel machinery
Request a Spherical Roller Series Quote
Send the full specification, drawing, quantity, destination, and required documents. We will confirm the selected configuration, availability, and timing in the quotation.