Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33 for Heavy Machinery with Brass Cage
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Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33 for Heavy Machinery with Brass Cage

Product ID: #6472
In Stock

<p>Reduce heavy machinery downtime with the reliable <strong>Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33</strong>, engineered to handle high radial loads and axial displacement in harsh industrial environments. Its precision-machined brass cage ensures stable roller guidance under extreme temperatures, while the W33 lubrication groove design simplifies maintenance intervals—keeping your equipment running longer between service stops.</p><ul><li>Medium and large outer dimension (120-190mm) fits heavy-duty applications like gearboxes and presses</li><li>60-64 HRC hardness rating guarantees wear resistance for continuous operation</li><li>Separated inner/outer rings allow easy mounting and replacement without disassembly</li><li>Available clearance grades (C0-C5) let you tailor performance to specific load conditions</li></ul>

Key Advantages

  • Official authorized SKF genuine product with traceability certificate
  • ISO 9001 three-level quality inspection system
  • Global door-to-door logistics with real-time tracking
  • 10+ years technical team for selection and installation guidance
Product Details

Detailed Specifications

Reduce heavy machinery downtime with the reliable Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33, engineered to handle high radial loads and axial displacement in harsh industrial environments. Its precision-machined brass cage ensures stable roller guidance under extreme temperatures, while the W33 lubrication groove design simplifies maintenance intervals—keeping your equipment running longer between service stops.

  • Medium and large outer dimension (120-190mm) fits heavy-duty applications like gearboxes and presses
  • 60-64 HRC hardness rating guarantees wear resistance for continuous operation
  • Separated inner/outer rings allow easy mounting and replacement without disassembly
  • Available clearance grades (C0-C5) let you tailor performance to specific load conditions

Description

Product Specifications

Parameter Details
Model NO. Double Row Cylindrical Roller Bearing
Outer Dimension Medium and Large(120-190mm)
Material Bearing Steel
Spherical Non-Aligning Bearings
Load Direction Axial Bearing
Separated Separated
Clearance C0 C2 C3 C4 C5
Cage Brass, Steel
Vibration Z1V1 Z2V2 Z3V3
Hardness 60-64 HRC
Transport Package Carton Pallet
HS Code 8482800000

Application Industries

Industry Typical Equipment
Heavy Machinery Industrial Gearboxes, Rolling Mills, Crushers
Manufacturing Machine Tool Spindles, Conveyor Systems
Mining & Construction Excavators, Loaders, Heavy Duty Pumps
Metallurgy Continuous Casters, Forging Presses

Minimize Downtime with NNU4952 B-K/Sp W33 Double Row Cylindrical Roller Bearing for Heavy Machinery

Heavy machinery operators know the frustration of unplanned downtime caused by bearing failures. When a critical bearing like the NNU4952 B-K/Sp W33 fails prematurely, it halts production lines, increases maintenance costs, and delays project timelines. Many buyers struggle with sourcing authentic bearings that meet industrial load requirements, especially when dealing with multiple suppliers for different components.

Genuine Double Row Cylindrical Roller Bearings with Stable Supply Chain

As an official authorized global bearing distributor with over 10 years of technical expertise, we provide the NNU4952 B-K/Sp W33 Double Row Cylindrical Roller Bearing with a brass cage, designed specifically for heavy machinery applications. Our WMS real-time inventory system ensures we can fulfill orders quickly, while our ISO 9001 three-level quality inspection system guarantees each bearing meets strict performance standards before delivery.

Engineered for Heavy-Duty Operating Conditions

The NNU4952 B-K/Sp W33 Bearing excels in applications involving high radial loads and moderate axial loads, common in heavy machinery such as industrial gearboxes and rolling mills. Its separated design allows for easy mounting and dismounting, simplifying maintenance procedures. The brass cage provides excellent heat resistance and stability, making this bearing suitable for continuous operation in demanding environments where reliability is non-negotiable.

Key Technical Features for Optimal Performance

The bearing’s 60-64 HRC hardness ensures high wear resistance, extending service life under heavy loads. Available clearance grades (C0, C2, C3, C4, C5) allow customization based on specific operating conditions—tighter clearances for precision applications and larger clearances for thermal expansion management. Vibration classes Z1V1 to Z3V3 ensure smooth operation, reducing noise and minimizing stress on connected components. The combination of bearing steel material and brass cage delivers a balance of strength and durability critical for heavy machinery performance.

Avoid Hidden Costs of Substandard Bearings

Choosing non-genuine or low-quality bearings may seem cost-effective initially, but the long-term consequences often include frequent replacements, unplanned downtime, and potential damage to expensive machinery. Our NNU4952 B-K/Sp W33 Brass Cage Bearing adheres to international quality standards, reducing the risk of premature failure. By investing in authentic bearings, you lower total cost of ownership through extended service intervals and reduced maintenance requirements.

Why Global Buyers Choose Our Bearing Solutions

We serve over 2,000 clients across 60+ countries, with strong presence in Belt & Road regions including Russia, UAE, and Saudi Arabia. Our official stable supply chain ensures genuine products with complete traceability. Our technical team provides personalized application solutions, from选型 to after-sales support. We offer global door-to-door logistics, with dedicated contacts managing your order from quotation to delivery. For EPC project purchasers and factory upgrading teams, our full-project supply management capability streamlines procurement, reducing supplier coordination costs.

Packaging & Shipping

  • Secure carton pallet packaging to prevent damage during transit
  • Stock availability for prompt dispatch – typically 3-7 working days for delivery
  • Flexible shipping options including DHL, FedEx, UPS, air freight, and sea freight
  • Real-time logistics tracking provided for all shipments
  • Minimum order quantity of 1 piece, supporting both emergency repairs and bulk project requirements

Get Your NNU4952 B-K/Sp W33 Bearing Shipped Today

Don’t let bearing issues slow down your operations. Send us your requirements, including quantity and application details, and our team will provide a quotation within one working day. With our ready inventory and global logistics network, we can get your NNU4952 B-K/Sp W33 Bearing delivered when you need it, minimizing downtime and keeping your machinery running efficiently.

Frequently Asked Questions

Q: Are these genuine bearings?

A: Yes, as an official authorized distributor, all our products come from verified supply chains with complete traceability documentation.

Q: How can I confirm if this bearing fits my equipment?

A: Provide your equipment model or specific operating parameters, and our technical team will verify compatibility at no cost.

Q: What is the warranty policy?

A: We offer full after-sales support and claim handling in accordance with manufacturer standards, including replacement for manufacturing defects.

Q: What is the minimum order quantity?

A: We accept orders starting from 1 piece, suitable for emergency maintenance or small-scale projects.

Q: How long does shipping take?

A: In-stock items are dispatched within 3-7 working days, with delivery times varying by destination and chosen logistics method.

Q: How can I verify the authenticity of the bearing?

A: Each bearing comes with original packaging and documentation. We can provide authorization certificates and traceability records upon request.

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Why Yoko Bearings

Trusted by 2,000+ Clients Worldwide

100% Genuine

Official authorized SKF distributor with full traceability certificates.

WMS Inventory

Real-time stock visibility with stable supply across all categories.

60+ Countries

Global door-to-door logistics with strong Belt & Road presence.

Expert Support

10+ years technical team for selection and after-sales claims.

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