21315 CAW33 SING ISB spherical roller bearing

21315 CAW33 SING ISB Spherical Roller Bearing – High Load Capacity and Misalignment Compensation

Product Description

21315 CAW33 SING ISB is a double-row spherical roller bearing designed to operate under very high radial loads and moderate axial loads acting in both directions. Its spherical roller design allows compensation of shaft misalignment relative to the housing, ensuring extended service life and high reliability in demanding industrial applications.

The CAW33 version features a machined brass cage (CA type) and a lubrication groove with lubrication holes in the outer ring (W33), enabling efficient grease distribution and prolonged operating performance. The SING designation indicates a single commercial packaging unit.

Applications

• Industrial gearboxes
• Construction and agricultural machinery
• Crushers and vibrating screens
• Industrial fans
• Heavy-duty drives operating under variable load conditions

Technical Specification

• Manufacturer: ISB
• Designation: 21315 CAW33
• Type: double-row spherical roller bearing
• Design: self-aligning (misalignment compensation)
• Cage: machined brass (CA type)
• W33: lubrication groove and lubrication holes in the outer ring
• Load capacity: very high radial loads + axial loads in both directions
• Packaging: SING – single commercial package

Note: exact dimensions (d, D, B), dynamic and static load ratings, and permissible speeds should be verified in the manufacturer’s technical documentation.

Features and Benefits

• High radial load capacity – suitable for heavy-duty applications
• Misalignment compensation – greater tolerance to mounting errors
• Improved lubrication (W33) – extended service life and better performance control
• Robust CA cage design – enhanced stability under dynamic loads
• Designed for harsh environments – reliable performance in demanding industrial conditions

Why Buy It

The 21315 CAW33 ISB bearing is the right choice for applications where the following are critical:

• reliable operation under very high loads,
• resistance to shaft misalignment,
• long service life in harsh conditions,
• efficient and controlled lubrication.

It is a proven solution for industrial machinery where safety, operational continuity, and downtime minimization are essential.

FAQ – Frequently Asked Questions

What does W33 mean in the designation?
W33 indicates a lubrication groove and lubrication holes in the outer ring to facilitate proper bearing lubrication.

Does the bearing compensate for misalignment?
Yes – the spherical roller design allows automatic compensation of shaft misalignment.

What types of loads is it designed for?
Primarily very high radial loads and moderate axial loads in both directions.

Is it suitable for heavy-duty operating conditions?
Yes – its design and technical characteristics are intended for demanding industrial applications.