Needle Roller Bearings

Needle Roller Bearings NA4924 NA4926 NA4928 for Industrial Machinery 120x165x45mm P0-P4 Precision

SKU: 4eba941d8ea7 In Stock

Ensure smooth, precise rotation for your industrial machinery with our Needle Roller Bearings, engineered to deliver reliable performance even under heavy radial loads. Designed for models NA4924, NA4926, and NA4928 (120x165x45mm), these bearings combine P0-P4 precision grades with high-grade bearing steel construction to minimize vibration and extend equipment lifespan.

  • Features a radial load-focused design without outer/inner rings, ideal for compact industrial setups where space efficiency matters
  • Supports both grease and oil lubrication for versatile maintenance, ensuring consistent operation in diverse working conditions
  • Backed by our ISO 9001-certified quality control and 12-month warranty, so you can trust in long-term durability and responsive after-sales support
Wholesale Price (FOB)
¥1.45
MOQ: 1 Piece • Bulk discounts available on inquiry
12-Month Warranty
Free Samples
Global Shipping
Product Specifications

Technical Details & Description

Product Specifications

Parameter Details
Model NO. NA4924
Load Direction Radial Bearing
Style Without Outer Ring, Without Inner Ring
Material Bearing Steel
Type Closed
Product Name Needle Roller Bearing
Lubrication Grease or Oil
Precision Rating P0 P6 P5 P4 P2
Clearance C0 C3 C4
Delivery Time 3-7days
Service OEM ODM
Transport Package Carton Pallet
Specification 120*165*45 mm
Trademark BDL
Origin China
HS Code 8482102000
Production Capacity 1000000

Application Industries

Industry Typical Equipment
Manufacturing Machine Tools, Printing Machinery, Gearboxes
Industrial Machinery Reducers, Conveyors, Compressors
Automotive Transmission Systems, Axle Assemblies
Agricultural Machinery Harvesters, Tractors, Tillage Equipment

Stop Equipment Downtime with Precision NA4924 NA4926 NA4928 Needle Roller Bearings

Industrial machinery operators know the cost of unexpected downtime—missed deadlines, maintenance overtime, and production losses add up fast. When standard bearings fail prematurely or precision doesn’t meet requirements, your entire operation suffers. Sourcing reliable needle roller bearings with the right dimensions and performance ratings shouldn’t be a challenge, especially when equipment depends on 120x165x45mm P0-P4 precision components.

Engineered for Industrial Machinery Reliability

Our Needle Roller Bearings NA4924, NA4926, and NA4928 are designed to solve these pain points. As an integrated manufacturer with over 18 years of experience, we ensure each bearing meets strict quality control standards, from raw material selection to final inspection. With a 12-month global warranty and free technical guidance, these industrial bearings deliver consistent performance in machine tools, reducers, and printing equipment—applications where radial load capacity and precision are non-negotiable.

Optimized for Heavy-Duty Industrial Conditions

These needle roller bearings excel in high-load, moderate-speed industrial environments. Without inner and outer rings, they offer space-saving design advantages for compact machinery, while bearing steel construction ensures durability under continuous operation. Whether your equipment faces shock loads, variable temperatures, or constant vibration, the closed-type design and grease/oil lubrication flexibility adapt to diverse working conditions, reducing maintenance frequency and extending service life.

Technical Precision That Drives Performance

Key technical features set these bearings apart. The P0-P4 precision ratings ensure minimal runout and vibration, critical for precision machinery where even微小偏差 can affect product quality. Clearance options (C0, C3, C4) allow customization for thermal expansion needs—C3 and C4 clearances are ideal for applications with temperature fluctuations, preventing premature failure from tight fits. The closed design enhances contamination resistance, a must in manufacturing environments where dust and debris are constant threats.

Why Cutting Corners on Bearings Costs More

Choosing low-quality bearings may save upfront costs, but the hidden expenses are steep. Early failures lead to unplanned shutdowns; a single day of production loss in a manufacturing plant can exceed the price of premium bearings. Our industrial needle bearings, backed by ISO9001 and ISO14001 certifications, reduce total cost of ownership by minimizing downtime, lowering maintenance needs, and ensuring longer service intervals. When every rotation counts, reliable components prevent cascading equipment damage and keep your operation running.

Your Trusted Long-Term Bearing Partner

At Jinan Saifan Bearing, we prioritize stability and transparency. Our full R&D and QC lab ensures each bearing meets design specifications, while flexible order terms (1pc MOQ for standard items) support both emergency repairs and bulk production needs. With 3-5 days sample lead time and 5-15 days bulk delivery, we keep your supply chain moving. We’ve served global buyers across Europe, America, and Southeast Asia since 2005, building a reputation for defect replacement/refund responsiveness and consistent supply—even amid raw material market fluctuations.

Packaging & Shipping

  • Secure carton and pallet packaging to prevent damage during transit
  • 3-7 days delivery time for standard orders
  • Multiple logistics options: DHL, FedEx, UPS, air freight, and sea freight
  • Real-time tracking provided for all shipments
  • 1pc minimum order quantity to support emergency maintenance and small-scale projects

Get Your NA Series Needle Bearings Today

Don’t let bearing issues slow your production. Whether you need NA4924, NA4926, NA4928, or custom dimensions, our team can confirm specifications and deliver quickly. Send us your bearing model, application details, and quantity—we’ll provide a competitive quote within 24 hours, helping you get back to full operation faster.

Frequently Asked Questions

Q: Are these needle roller bearings authentic and traceable?

A: Yes, we maintain full quality control from manufacturing to delivery, with batch tracking and ISO certifications ensuring authenticity.

Q: How do I confirm if the NA4924 size (120x165x45mm) fits my equipment?

A: Provide your equipment model or shaft/housing dimensions, and our technical team will verify compatibility at no cost.

Q: What is the warranty coverage for these bearings?

A: We offer a 12-month global warranty, including free replacement or refund for manufacturing defects.

Q: What is the minimum order quantity for NA series bearings?

A: Standard items have a 1pc MOQ, supporting both small repairs and large-scale orders.

Q: How quickly can I receive my order?

A: Samples ship in 3-5 days, and bulk orders deliver within 5-15 days depending on quantity.

Q: What lubrication is recommended for these needle roller bearings?

A: Both grease and oil lubrication are suitable; we can provide specific recommendations based on your operating speed and temperature.

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

Sample Policy

Free samples available for distributors. 3–5 days production lead time.

Bulk Delivery

5–15 days for bulk orders. T/T, L/C and Alibaba payments accepted.

Certifications

ISO 9001:2015, ISO 14001 certified. ABMA / DIN compliant.

After-Sales

12-month warranty plus dedicated technical failure analysis support.

Engineering Insights

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