22212CA/W33C3 Spherical Roller Bearing: Specifications and Selection Guide

The 22212CA/W33C3 is a double-row spherical roller bearing commonly cataloged with a 60 mm bore, 110 mm outside diameter, and 28 mm width. Its designation typically indicates a CA internal design, an outer-ring lubrication groove and holes (W33), and C3 radial internal clearance. Buyers should confirm the exact design details and load ratings against the selected manufacturer’s current catalog, because suffix conventions and performance data can vary.

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This guide explains how to read the designation, assess operating conditions, and compare supplier offers before purchase. It is intended for equipment manufacturers, maintenance teams, and industrial distributors sourcing a bearing for a defined shaft and housing arrangement. Use the information as a selection framework, then verify fit, lubrication, and ratings for your specific application.

Key Takeaways

• The commonly listed boundary dimensions are 60 mm bore, 110 mm outside diameter, and 28 mm width; confirm these dimensions before specifying a replacement.
• W33 generally identifies an outer-ring lubrication groove with three lubrication holes, while C3 identifies radial internal clearance greater than Normal.
• Selection depends on operating load, speed, temperature, lubrication, mounting conditions, and the bearing’s actual catalog ratings—not the designation alone.
• Ask suppliers to confirm the full designation, manufacturing details, inspection documents, packaging, and delivery terms in writing.

Who This Guide Is For

This guide is for buyers evaluating the 22212CA/W33C3 for new equipment, replacement, or inventory planning. It is also useful when comparing quotations that show the same basic bearing number but differ in cage description, clearance, lubrication features, or documentation. If you are replacing an installed bearing, record its full marking and check the equipment manual before changing the specification.

Understanding the 22212CA/W33C3 Designation

Basic bearing type and dimensions

The 22212 designation refers to a double-row spherical roller bearing series and bore code. For this size, standard product listings commonly show a 60 mm bore, 110 mm outside diameter, and 28 mm width. These dimensions help establish whether the bearing can fit the shaft and housing, but they do not by themselves confirm interchangeability in every application.

Spherical roller bearings use two rows of rollers and a spherical outer-ring raceway. This arrangement is designed to accommodate radial loads and, within the bearing’s operating limits, axial loads in both directions. The geometry can also accommodate a degree of misalignment between shaft and housing, but it does not compensate for poor mounting, excessive shaft deflection, or misalignment beyond the manufacturer’s limits.

What CA, W33, and C3 usually mean

Suffix meanings are widely used, but details can differ between manufacturers and product ranges. Do not infer a precise clearance value, load rating, limiting speed, or cage specification from the suffix alone. Request the manufacturer’s datasheet for the exact offered product and compare it with the original bearing or equipment specification.

Matching the Bearing to an Application

The 22212CA/W33C3 may be considered for machinery exposed to combined loads, possible shaft-to-housing misalignment, or a need for relubrication through the housing. Potential applications depend on the design and duty cycle of the equipment and may include industrial drives, conveyors, pumps, and other machinery using this bearing size. The bearing’s suitability must be checked against the actual load, speed, operating temperature, and lubrication method.

For auto-bearing or vehicle-related applications, verify the equipment manufacturer’s part number and service requirements rather than assuming that a general industrial bearing designation is interchangeable. Automotive operating conditions can involve vibration, shock, temperature changes, and space constraints that require application-specific validation. Where the bearing is part of a safety-critical assembly, follow the relevant design authority’s approval and inspection process.

A Practical Selection Framework

1. Confirm fit and replacement details

Start by checking the shaft diameter, housing bore, available width, and mounting arrangement against the commonly listed 60 mm × 110 mm × 28 mm envelope. Record the full bearing marking, including every suffix, and compare it with the equipment documentation. If the original bearing is damaged or markings are unreadable, have the fit and internal specification reviewed before ordering.

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2. Define loads, speed, and operating conditions

Provide the supplier with the expected radial and axial loads, shaft speed, duty cycle, and any shock or vibration conditions. Ask for the dynamic and static load ratings, reference speed, and any applicable limiting speed for the exact proposed bearing. Compare those catalog values with the application requirements using an appropriate engineering method; do not use a generic rating for all 22212 variants.

3. Check clearance, fits, and temperature

C3 clearance is not automatically the best choice simply because the machine runs hot or uses an interference fit. Fits and operating temperature can reduce internal clearance, while an unsuitable clearance can affect operating behavior and bearing life. Have the final clearance requirement checked against shaft and housing tolerances, temperature differences, mounting method, and manufacturer guidance.

4. Plan lubrication and maintenance

W33 features can support relubrication through the outer ring, but the bearing still needs a compatible lubricant and a suitable replenishment plan. Confirm lubricant type, quantity, delivery path, interval, and whether the application uses grease or oil. The groove and holes should be correctly positioned relative to the housing lubrication passage so that lubricant can reach the intended area.

Pricing, MOQ, and Lead Time

The quoted price for a 22212CA/W33C3 can depend on the specified design, order quantity, packaging, inspection requirements, and delivery destination. Minimum order quantity and lead time are supplier- and order-specific, so they should be confirmed on the quotation rather than assumed from the bearing number. For a fair comparison, ask each supplier to quote the same full designation, quantity, delivery term, and documentation scope.

For scheduled maintenance or production, consider evaluating both the immediate order and the replenishment plan. A quotation should clarify whether the product is available from stock or made to order, the stated dispatch timing, and how any changes will be communicated. These details help buyers assess supply risk without relying on unverified general lead-time claims.

Supplier Evaluation Checklist

Before issuing a purchase order, request written confirmation of the product designation, dimensions, clearance class, cage details, and lubrication features. Ask for the applicable datasheet, inspection or traceability documents available for the order, packaging information, and commercial terms. If the bearing will replace an existing part, share the original marking and equipment requirements so the supplier can identify potential specification differences.

At Tuoda Bearing, we support B2B buyers with product selection discussions, quotation coordination, and clarification of bearing specifications for sourcing evaluations. Share your required quantity, application, delivery destination, and any available drawing or bearing marking so we can review the request accurately. Product availability, documentation, and delivery details should be confirmed for each inquiry.

Conclusion and Next Steps

The 22212CA/W33C3 is commonly specified as a 60 mm × 110 mm × 28 mm spherical roller bearing with a CA design, W33 lubrication feature, and C3 clearance, subject to confirmation from the selected manufacturer. To decide whether it is right for your equipment, verify the dimensions and full suffix, then match load ratings, speed, clearance, fits, temperature, and lubrication to the application. The designation is a starting point for evaluation, not a substitute for checking the exact product data.

For a product assessment or quotation, send Tuoda Bearing the full bearing marking, operating conditions, required quantity, and delivery location. If you are replacing an installed bearing, include the equipment or original-part information and flag any differences in the proposed specification. This gives both buyer and supplier a clearer basis for confirming suitability, commercial terms, and next steps.