Cylindrical Roller Bearings NNU4934BK/SPW33 Single Row Open Type for Industrial Machinery
Famous Brand Bearing

ISO

Certified

P0-P4

Precision

1 PC

Min. Order

Famous Brand Bearing SKF Bearings SKF Bearings

Cylindrical Roller Bearings NNU4934BK/SPW33 Single Row Open Type for Industrial Machinery

Ensure smooth, precise rotation for your industrial machinery with the Cylindrical Roller Bearings NNU4934BK/SPW33 — designed to minimize downtime and maximize operational efficiency in heavy-duty applications. This single row open type bearing delivers exceptional radial load capacity, making it ideal for machine tools, reducers, and textile equipment where reliability under stress is non-negotiable.

  • Engineered with SKF-grade precision (P0-P4 available) to maintain stable performance even in high-speed or variable load conditions
  • 170mm inner diameter and open structure allow for easy lubrication maintenance, addressing common wear-related challenges in industrial settings
  • Backed by Saifan’s 12-month warranty and ISO 9001-certified quality, ensuring consistent performance and peace of mind for your production line

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. NNU4934BK/SPW33
Type Roller
Number of Row Single Row
Inner Diameter 170 mm
Selling Units Single Item
Structure Cylindrical
Seals Type Open
Gross Weight Per 0.250 Kg Batch
Trademark SKF
Origin China
Package Size 30.00cm * 25.00cm * 25.00cm
Package Gross Weight 0.300kg

Application Industries

Industry Typical Equipment
Industrial Machinery Machine Tools, Gearboxes, Reducers, Printing Machines
Manufacturing CNC Machines, Spindles, Conveyors, Hydraulic Pumps

Minimize Downtime with Reliable NNU4934BK/SPW33 Cylindrical Roller Bearings

Unexpected equipment failure due to substandard bearings can halt production lines, leading to costly delays and lost revenue. Many businesses struggle with sourcing genuine bearings that meet precision requirements, especially when dealing with urgent repairs or small-batch orders. Finding a supplier that balances quality, availability, and technical support remains a common challenge in industrial operations.

Genuine Single Row Open Type Roller Bearings for Immediate Use

The NNU4934BK/SPW33 Cylindrical Roller Bearings address these issues by offering a reliable solution for industrial machinery. As a professional bearing manufacturer and supplier with decades of experience, we ensure each unit meets strict quality standards. This single row open type bearing is designed for applications requiring high precision and stable performance, such as machine tool spindles and gearboxes, where equipment reliability directly impacts production efficiency.

Optimized Performance in Demanding Industrial Environments

This cylindrical roller bearing excels in environments with radial loads and moderate speeds, common in industrial machinery operations. Its open design allows for easy lubrication maintenance, ensuring long service life even under continuous operation. The single row structure provides efficient load distribution, making it suitable for precision equipment where minimal vibration and high rigidity are essential. Selecting the right bearing type directly influences equipment uptime and maintenance costs.

Key Technical Features That Ensure Reliability

The NNU4934BK/SPW33 model’s inner diameter of 170 mm makes it compatible with various industrial shafts, providing versatility across different machinery types. Its cylindrical structure ensures precise alignment, reducing friction and wear during operation. The roller design enables higher radial load capacity compared to ball bearings, making it ideal for heavy-duty applications. The open seal type allows for customization of lubrication based on specific operating conditions, ensuring optimal performance in diverse industrial settings.

Long-Term Value of Authentic Roller Bearings

Choosing genuine bearings like the NNU4934BK/SPW33 minimizes the risk of premature failure, which can lead to costly equipment damage and production downtime. Counterfeit bearings often lack proper material quality and manufacturing precision, resulting in shorter service life and increased maintenance needs. Our products meet ISO international industrial standards, ensuring consistent performance and reducing total cost of ownership by lowering replacement frequency and associated labor costs.

Why Industrial Buyers Choose Our Bearings

With ISO 9001:2015 and ISO 14001 certifications, we maintain rigorous quality control from raw material inspection to finished product testing. Our technical R&D team and experienced QC staff ensure each bearing meets P0 to P4 precision grades, aligning with global industrial requirements. We offer flexible order policies, including 1 piece MOQ for standard bearings, making us suitable for both emergency repairs and bulk orders. Our 12-month warranty and professional after-sales support provide additional assurance, with replacement or refund options for qualified defective products.

Packaging & Shipping

  • Secure packaging in 30.00cm * 25.00cm * 25.00cm cartons to prevent damage during transit
  • Efficient delivery: 3-5 working days for sample orders, 5-15 working days for bulk orders
  • Multiple logistics options including DHL, FedEx, UPS, air freight, and sea freight
  • Real-time tracking information provided once shipment is dispatched
  • Minimum order quantity of 1 piece, supporting both small repairs and large-scale production needs

Request Your NNU4934BK/SPW33 Bearing Quote Today

Don’t let equipment downtime affect your productivity. Whether you need a single replacement bearing or a bulk order for scheduled maintenance, we can fulfill your requirements promptly. Contact us with your specific application details to ensure proper选型 and get started with your order.

Frequently Asked Questions

Q: Are these genuine SKF bearings?

A: Yes, we supply genuine original brand bearings, including SKF, with complete traceability to ensure authenticity.

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 assist with free选型 verification.

Q: What is the warranty period for this bearing?

A: We offer an official 12-month warranty from the date customers receive the goods, covering manufacturing defects.

Q: What is the minimum order quantity?

A: The minimum order quantity for standard bearings like the NNU4934BK/SPW33 is 1 piece, supporting emergency repair needs.

Q: How long does shipping take?

A: Sample orders are delivered within 3-5 working days, while bulk orders typically ship within 5-15 working days, depending on quantity.

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

A: Genuine SKF bearings feature consistent branding, packaging, and product markings. We provide documentation to support traceability and authenticity verification.

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

Tags: Cylindrical Roller Bearings Industrial Machinery Bearings NNU4934BK/SPW33 NNU4934BK/SPW33 Cylindrical Roller Bearings Open Type Bearings Roller Bearings Single Row Bearings Single Row Open Type Roller Bearings for Industrial Machinery
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