Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33 for Industrial Machinery
Famous Brand Bearing

ISO

Certified

P0-P4

Precision

1 PC

Min. Order

Famous Brand Bearing SKF Bearings SKF Bearings

Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33 for Industrial Machinery

Ensure smooth, high-precision rotation in your industrial machinery with the Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33, engineered to deliver reliable performance even under heavy loads. Crafted from premium bearing steel with a hardness of 60-64 HRC, this bearing minimizes downtime by maintaining stable operation across demanding industrial applications.

  • Designed with separated inner/outer rings and brass/steel cage options for easy installation and maintenance, adapting seamlessly to your equipment’s specific needs
  • Features Z1V1-Z3V3 vibration grades to reduce noise and extend service life, addressing the critical need for consistent performance in high-stakes machinery
  • Available with clearance options (C0-C5) to optimize fit for precision-critical systems, backed by Saifan’s ISO 9001-certified quality control for long-term reliability

MOQ

1 Piece

Lead Time

5-15 Days

Warranty

12 Mo.

Precision

P0-P4

Noise Grade

Z2-Z4

Customization

OEM/ODM

  • High-grade chrome steel for long service life
  • Strict raw material inspection & full process monitoring
  • ISO 9001:2015 & ISO 14001 certified
  • ABMA & DIN standards compliant
  • Free samples for qualified distributors
  • T/T, Credit Card & Alibaba payment accepted

Product Details

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
Specification As Your Request
Trademark zhaoyun
Origin Jiangsu China
HS Code 8482800000
Production Capacity 1000000

Application Industries

Industry Typical Equipment
Industrial Machinery Machine Tools, Gearboxes, Reducers
Manufacturing CNC Machines, Spindles, Printing Equipment
Heavy Industry Rolling Mills, Conveyors, Crushers

Minimize Downtime with Reliable Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33

Industrial machinery operators know the cost of unexpected bearing failure—hours of production loss, expensive repairs, and disrupted schedules. Sourcing high-quality bearings that meet precision requirements while offering flexible order options can be a challenge, especially when dealing with specialized industrial equipment.

Engineered for Industrial Machinery Performance

The Double Row Cylindrical Roller Bearing NNU4952 B-K/Sp W33 is designed to address these challenges, providing robust performance for industrial machinery. With a separated structure and clearance options from C0 to C5, it adapts to various operating conditions, ensuring stability in gearboxes, reducers, and CNC machines. Backed by our decades of manufacturing experience, this bearing combines high-grade bearing steel with precision processing to deliver consistent performance.

Optimal Performance in Demanding Industrial Conditions

This Double Row Cylindrical Roller Bearing excels in applications involving heavy axial loads and moderate radial loads, common in industrial machinery like rolling mills and conveyors. Its brass or steel cage ensures reliable operation even at moderate speeds, while the 60-64 HRC hardness rating guarantees resistance to wear and deformation under continuous use. The non-aligning design makes it suitable for equipment where shaft alignment is maintained, providing predictable performance in structured industrial setups.

Key Technical Features for Industrial Reliability

The bearing’s separated design allows for easy mounting and dismounting, simplifying maintenance procedures and reducing downtime during repairs. Clearance options (C0 to C5) enable customization based on thermal expansion needs and load conditions—critical for applications with varying operating temperatures. Vibration grades Z1V1 to Z3V3 ensure smooth operation, minimizing noise and extending the lifespan of connected components. The combination of these features makes the NNU4952 B-K/Sp W33 a dependable choice for industrial machinery manufacturers.

Why Genuine Bearings Matter for Industrial Operations

Choosing genuine bearings over counterfeit alternatives directly impacts total operational costs. Inferior bearings often fail prematurely, leading to unplanned shutdowns that cost far more than the initial savings on cheaper parts. Our bearings meet strict quality control standards, with incoming material inspections and full-process production supervision. Each unit undergoes dimensional and performance testing, ensuring compliance with international industrial standards. This commitment to quality translates to longer bearing life, fewer replacements, and more consistent machinery performance.

Your Trusted Partner for Industrial Bearings

With over 15 years of experience as a professional bearing manufacturer and supplier, we serve customers across Europe, North America, Southeast Asia, and the Middle East. Our ISO 9001:2015 and ISO 14001 certifications validate our commitment to quality and environmental management. We offer flexible order policies, including 1 piece MOQ for standard bearings and sample orders without MOQ, to support both small-scale repairs and large production runs. Our technical team provides free guidance on bearing selection and installation, ensuring you get the right component for your specific application.

Packaging & Shipping

  • Secure carton pallet packaging to protect bearings during transit
  • Efficient delivery: 3-5 working days for sample orders, 5-15 working days for bulk orders
  • Multiple logistics options including express, air, and sea freight
  • Real-time shipment tracking provided for all orders
  • Flexible order quantities: 1 piece MOQ for standard bearings, customized order quantity negotiable

Get Your NNU4952 Bearing Today

Don’t let bearing issues disrupt your production schedule. Whether you need a single replacement or bulk quantities, we can fulfill your order quickly. Send us your requirements, including application details and quantity, and our team will provide a tailored quote within 24 hours. The sooner you secure reliable bearings, the sooner you can restore full efficiency to your industrial machinery.

Frequently Asked Questions

Q: Is this bearing a genuine product?

A: Yes, we ensure all products meet strict quality standards with full-process production supervision and compliance with ISO, ABMA, and DIN international industrial standards.

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

A: Our professional technical team offers free guidance on bearing selection. Provide your equipment model or specific operating conditions, and we will help verify compatibility.

Q: What is the warranty policy for this bearing?

A: We offer an official 12-month warranty valid from the date customers receive goods. Qualified defective products are eligible for free replacement or direct refund.

Q: What is the minimum order quantity?

A: We offer flexible order rules with 1 piece MOQ for standard bearings. Sample orders have no MOQ requirement, and customized order quantities are negotiable.

Q: How long does shipping take?

A: Sample orders are delivered within 3-5 working days, while bulk orders take 5-15 working days. We provide multiple logistics options to meet your timeline needs.

Q: How do you ensure product quality?

A: We implement strict incoming raw material inspection, full-process production supervision, and in-house laboratory testing for dimensional accuracy, noise, vibration, and service life. All products meet international standards and are inspected before shipment.

Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we’ll respond within 24 hours.

Tags: B-K/Sp Roller Bearing Cylindrical Roller Bearing for Industrial Equipment Double Row Bearing NNU4952 B-K/Sp Double Row Cylindrical Roller Bearing High Precision NNU4952 W33 Bearing Industrial Machinery Bearing NNU4952 Bearing W33 Cylindrical Bearing
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