Product Overview
This page provides a detailed engineering and procurement reference for the 24036 CA/W33, intended for buyers verifying exact bearing specifications and functional interchangeability before ordering.
As a specialized member of the 240 series, the 24036 CA/W33 Spherical Roller Bearing is specifically developed by ZQM Bearings to sustain continuous operation in high-stress environments where radial space is limited but load density requirements remain extreme. Primarily utilized in paper machines, rolling mills, and large-scale industrial gearboxes, this model is the engineering choice for procurement professionals seeking a reliable replacement that meets rigorous ISO standards. Its dual-row symmetrical roller design allows for substantial radial capacity while simultaneously managing combined axial forces, making it an essential component for critical machinery where downtime is not an option. The 24036 CA/W33 balances high static load resilience (1750 kN) with a compact cross-section, ensuring operational continuity under severe vibration stress.
Design & Engineering Advantages
The 24036 CA/W33 is synthesized from premium vacuum-degassed GCr15SiMn bearing steel. This material selection is a calculated engineering decision targeting the mitigation of fatigue spalling by controlling oxygen content to sub-5 ppm levels, effectively reducing non-metallic inclusions. In high-load industrial bearings, steel purity directly correlates to the fatigue limit, and our controlled manufacturing processes ensure that the 24036 CA/W33 maintains superior Hertzian contact stress distribution across the rolling elements.
The internal geometry is optimized with a precision-machined solid brass cage (CA) and symmetrical rollers. This structure provides exceptional shock and vibration stability, as the brass cage offers a lower friction torque and higher thermal stability compared to pressed steel alternatives, preventing cage pocket fracture and premature thermal seizure during continuous, high-speed operation. Furthermore, the W33 feature provides a circumferential lubrication groove and three holes, ensuring relubrication continuity directly to the internal raceways. The 100 mm width (B) ensures a robust load footprint, contributing to a dynamic load rating of 965 kN, which is critical for maintaining boundary lubrication reliability in high-torque industrial service cycles.
Key Features
- Vacuum-degassed GCr15SiMn steel for maximum raceway fatigue life.
- Solid brass cage (CA) for superior stability under vibration and shock loads.
- Compact 240-series design for high load density in tight radial spaces.
- Integrated W33 lubrication feature for continuous relubrication reliability.
- Advanced internal clearance optimization to compensate for shaft misalignment.
Boundary Dimensions
| Designation | 24036 CA/W33 |
| Bore diameter (d) | 180 mm |
| Outside diameter (D) | 280 mm |
| Width (B) | 100 mm |
Procurement Selection
From a TCO (Total Cost of Ownership) perspective, the procurement of the 24036 CA/W33 represents a strategic decision to prioritize structural reliability in heavy industrial drives. Engineering teams should prioritize this brass-cage model over standard steel variants specifically for applications involving heavy vibration or thermal load gradients, such as in paper mill drying sections. The functional interchangeability of the 24036 CA/W33 with international brands ensures that procurement verification is straightforward, matching exactly the dynamic load ratings required for major OEM replacements. ZQM Bearings conducts batch-to-batch dimensional consistency audits, ensuring that every 24036 CA/W33 meets the static load rating of 1750 kN, effectively neutralizing the risk of early-stage permanent deformation in stationary or slow-moving high-load phases.
Cross-reference & Replacement
| ZQM Model | Reference Brand | Reference Model | Equivalence Basis |
|---|---|---|---|
| 24036 CA/W33 | SKF | 24036 CC/W33 | Dimensional conformity |
| 24036 CA/W33 | FAG | 24036-E1-XL-M | Installation interchangeability |
| 24036 CA/W33 | NSK | 24036CAMKE4 | Internal geometry compatibility |
The 24036 CA/W33 is specifically engineered for replacement evaluation across a vast range of industrial hardware. ZQM provides these references to support procurement professionals. Technical audits should always verify the shaft abutment (da min=192 mm) and housing abutment (Da max=268 mm) to ensure proper structural fit during installation, preventing localized stress peaks and vibration.
Typical Industrial Applications
- Paper Machine Drying and Press Sections
- Industrial Gearboxes for Mining Conveyors
- Rolling Mill Support Stands
- Large-scale Centrifugal Blowers
- Heavy-duty Extruder Gearboxes
Service Life & Reliability
The reliability of the 24036 CA/W33 is grounded in advanced L10 Life Calculation Logic, where the relationship between raceway honing and steel purity is maximized. By reducing friction torque through precision finishing, the bearing maintains its heat treatment stability, preventing dimensional drift that could lead to early clearance loss. High-load industrial environments demand that the bearing resists subsurface-initiated fatigue; ZQM achieves this by controlling inclusion levels, ensuring that the 24036 CA/W33 achieves its full theoretical fatigue life. The 1750 kN static load rating (C0) provides a robust safety factor against permanent deformation (brinelling) during stationary vibration or impact loads, which is critical for equipment that undergoes frequent start-stop cycles.
Installation & Lubrication Notes
Success in heavy-duty applications depends heavily on precise misalignment compensation. The 24036 CA/W33 can typically accommodate up to 2 degrees of shaft deflection; exceeding this limit will trigger edge loading and early raceway failure. Relubrication via the W33 feature is mandatory for continuous operation, following the speed ratings of 950 r/min for grease and 1200 r/min for oil. Incorrect grease volume is a primary cause of thermal seizure; ensure the fill level matches the specific industrial service cycle requirements. Proper mounting using cold-mounting tools or induction heaters is essential to protect the internal raceways from mounting damage.
Frequently Asked Questions
How does material purity influence the fatigue resistance of 24036 CA/W33?
Material purity is the primary determinant of the L10 fatigue life in the 24036 CA/W33. By using vacuum-degassed steel, ZQM minimizes non-metallic inclusions that otherwise act as stress concentration points under the contact raceway. If inclusions are present, the constant Hertzian contact stress will trigger subsurface cracks, leading to premature fatigue spalling. High purity ensures that the 24036 CA/W33 maintains its dimensional stability and load-carrying capacity over millions of stress cycles in high-torque industrial environments.
Why choose a brass cage (CA) instead of a steel cage for the 24036 model?
The choice depends on the vibration stress and thermal gradient of the application. The solid brass cage in the 24036 CA/W33 provides higher structural rigidity and superior heat dissipation compared to pressed steel cages. In applications like paper mills or gearboxes where shaft deflection and vibration are constant, the brass cage prevents pocket fracture and maintains lubrication reliability, whereas a steel cage might suffer from fatigue-related failure under the same vibration stress.
What are the critical installation abutment dimensions for the 24036 CA/W33?
For a 24036 CA/W33 installation, the shaft abutment (da min) should be 192 mm, and the housing abutment (Da max) should not exceed 268 mm. If these dimensions are not respected, the bearing’s load path will be compromised, leading to vibration stress or axial drift. The fillet radius (ra max=2 mm) must be strictly controlled to ensure the bearing sits flush against the shoulder, maintaining its precise axial positioning for long-term service life.
How does the 24036 CA/W33 manage heavy radial loads in limited space?
The 24036 CA/W33 utilizes an optimized internal geometry with symmetrical rollers that maximize the effective contact length within a compact 240-series cross-section. This design allows for a high static load rating of 1750 kN despite the bearing’s relatively thin wall. The self-aligning property ensures that even under shaft deflection, the load is distributed evenly across both rows of rollers, preventing localized stress peaks and extending the operational boundary lubrication life.
When should the W33 relubrication feature be used for the 24036 CA/W33?
The W33 feature, consisting of a central lubrication groove and three holes, should be utilized in all continuous operation industrial machinery. It allows fresh grease to be introduced directly into the heart of the 24036 CA/W33, flushing out debris and ensuring the boundary lubrication layer is never compromised. This is especially critical in gearboxes and rolling mills where the bearing operates near its 1200 r/min oil speed limit or in high-contamination environments.
Related Bearing Models
- 24032 CA/W33
- 24040 CA/W33
- 23036 CA/W33
- 24136 CA/W33
- 23136 CA/W33
Technical Support & Global Inquiry
ZQM Bearings supports long-term supply programs for international OEMs and distributors, emphasizing batch-to-batch dimensional consistency and controlled manufacturing processes. Our engineering team focuses on standardized quality control across repeated production batches to ensure consistent fit and performance for overseas shipments.
Standardized export packaging and anti-rust surface treatment are provided for all overseas shipments to maintain the dimensional integrity of your order. ZQM engineers provide 24/7 technical selection support to ensure the selected bearing solution matches your specific industrial application needs. Request a customized quote for bulk orders or OEM-specific bearing requirements to support your high-performance projects.
