Browse Selected Bearing References

Use the references below to begin your enquiry. Preserve the complete designation when comparing products or preparing a purchasing list.

Series	Selected catalogue references	Information to confirm
213	21318CAK; 21318KCTN1	Internal design, cage specification and bore type
222	22218CAK; 22219CAK; 22230CC / 22230CCK	Exact variant, clearance and mounting arrangement
223	22318MBK; 22318CAK; 22319CAK	Complete suffix, operating conditions and required documentation
230	23030MBK; 23028CAK	Bore configuration, dimensions and installation details
231	23126CAK; 23128CA / 23128CAK	Selected bore version and associated mounting components
232	23218CAK	Dimensions, internal configuration and application requirements

References listed together are not automatically interchangeable. If your bearing is not shown, send the full marking or a clear photograph for identification and availability review.

Self-Aligning Support for Industrial Equipment

Spherical roller bearings support radial loads and axial loads in both directions. Their self-aligning geometry accommodates angular misalignment associated with shaft deflection or alignment differences between the shaft and housing.

Permissible misalignment remains subject to the specific bearing and installation. Self-alignment does not remove the need to check shaft alignment, housing condition, lubrication and sealing.

Typical application areas include conveyors, industrial gearboxes, mining equipment and paper machinery. These are starting points for selection, not confirmation that every catalogue bearing suits every machine. Provide the equipment position and operating conditions so the required configuration can be reviewed.

For vibrating screens or other strongly vibrating equipment, identify the application explicitly. Include the original bearing specification and available operating data before approving a replacement.

Confirm Cylindrical or Tapered Bore

Cylindrical-bore and tapered-bore versions require different mounting arrangements. Check the exact version against the shaft and assembly drawing, even when the main catalogue dimensions appear similar.

K and K30 are commonly used to identify tapered bores in spherical roller bearing catalogues. Confirm the taper and complete designation using the applicable manufacturer's documentation. Do not omit a bore suffix when requesting a replacement.

A tapered-bore bearing may be mounted on a suitable tapered shaft or with an appropriate adapter or withdrawal sleeve. If a sleeve is involved, provide its reference and the shaft diameter. Ask for confirmation of compatibility and whether the sleeve, nut and locking components are included in the quotation.

Keep Clearance, Cage and Lubrication Requirements Separate

The complete designation can identify several independent features. A bore suffix, clearance code and lubrication feature do not describe the same property.

C3 denotes an internal clearance greater than Normal; it is not a higher quality or precision grade. Specify the clearance required by the equipment design. Check the mounting and operating requirements before substituting a different clearance class.

Catalogue references may also use CA, CC, MB or other design codes. Their interpretation depends on the manufacturer's designation system. Request confirmation of the internal design and cage material instead of assuming that similarly named variants have identical performance.

For lubrication features such as W33, verify the outer-ring groove and hole arrangement against the product drawing. Also confirm whether the bearing is open or sealed, how lubrication reaches the bearing and what protection the surrounding assembly provides. A lubrication groove does not establish that the bearing is sealed or pre-greased.

Information to Include in Your RFQ

Send one line per required configuration. If two items share a basic number but have different suffixes, list them separately with their own quantities.

RFQ field	What to provide
Bearing identification	Full designation, suffixes, original marking and replacement reference
Dimensions and mounting	Drawing, bore type, shaft diameter, housing details and sleeve reference where applicable
Internal configuration	Required clearance, cage specification and lubrication or sealing features
Operating conditions	Radial and axial loads, speed, temperature, vibration and contamination exposure
Supply scope	Bearing only or specified mounting components, with quantities for each
Quality requirements	Inspection characteristics, acceptance criteria and required documents
Commercial details	Quantity, destination, requested delivery date, packaging and marking requirements

For OEM approval or planned maintenance orders, identify the drawing revision and any documents required before shipment. Ask for the available scope of dimensional inspection, material documentation and batch identification at the quotation stage.

Minimum order quantity, availability and delivery timing should be confirmed for the exact configuration. For private-label enquiries, include the intended marking, packaging requirements and order quantity for review.

Frequently Asked Questions

Can I order using only the basic bearing number?

Include all suffixes whenever possible. The basic number alone may not identify the bore type, clearance or internal design needed for your equipment.

Are cylindrical-bore and tapered-bore bearings directly interchangeable?

Do not approve a substitution from the basic dimensions alone. Review the shaft, sleeve and complete mounting arrangement, then confirm the required bearing version.

Is C3 the best choice for every industrial application?

No. Select clearance according to the equipment specification and mounting conditions. A larger clearance is not a universal performance upgrade.

Does a K suffix mean an adapter sleeve is included?

No. The bearing designation does not establish the contents of the quotation. Specify the sleeve and other mounting components separately and confirm the supplied items.

Can any spherical roller bearing be used in a vibrating screen?

Suitability requires application review. Provide the original bearing designation and operating conditions so the cage, clearance and other relevant requirements can be checked.

What information helps with a replacement enquiry?

Send the full marking, equipment model, installation position, quantity and available drawing. Photographs can help identify the part, but technical compatibility should be checked before accepting a substitute.

Request Your Spherical Roller Bearing Quotation

Send your bearing list, technical requirements and destination to Nexans Bearing for configuration review and quotation.