Saifan Bearing
Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery
Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery
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Needle Roller Bearing NKI42/30 42x57x30mm P0-P4 Precision for Industrial Machinery

SKU: f5681a546c86

Ensure smooth, precise rotation in your industrial machinery with the Needle Roller Bearing NKI42/30—engineered to deliver reliable performance under radial loads while maintaining tight dimensional control (42x57x30mm) for seamless integration. Crafted from high-grade bearing steel and available in P0-P4 precision grades, this closed-type radial bearing minimizes downtime by reducing vibration and noise, addressing common wear issues in heavy-duty applications.

  • Designed without inner/outer rings for space-saving installation in compact machinery setups
  • Supports both grease and oil lubrication to adapt to your maintenance protocols
  • Backed by our ISO-certified manufacturing process for consistent quality and 12-month warranty
  • Sample orders available with 3-7 day delivery to validate fit before full-scale deployment
Factory Price
¥1.45
MOQ: 1pc · Bulk discount available
ISO 9001
Certified
12-Month
Warranty
3-5 Days
Sample Delivery
Technical Documentation

Product Details

Product Specifications

Parameter Details
Model NO. NKI42/30
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 42*57*30 mm
Trademark BDL
Origin China
HS Code 8482102000
Production Capacity 1000000

Application Industries

Industry Typical Equipment
Industrial Machinery Machine Tools, Printing Machinery, Reducers
Automotive Transmission Systems, Steering Components
Agriculture Harvesters, Tractors, Farming Equipment
New Energy Wind Turbines, Photovoltaic Systems
Home Appliances Motors, Pumps, Compressors

Prevent Costly Downtime with NKI42/30 Needle Roller Bearing for Industrial Machinery

Industrial machinery operators know the frustration of unexpected downtime caused by bearing failures. When low-quality bearings fail prematurely, production lines halt, maintenance costs rise, and deadlines are missed. Sourcing reliable precision bearings with flexible order options and fast delivery can mean the difference between meeting production targets and losing revenue.

NKI42/30 Needle Roller Bearing: Engineered for Reliable Performance

The NKI42/30 Radial Needle Roller Bearing addresses these challenges with its robust design and precision engineering. As an integrated manufacturer with full R&D capabilities and ISO9001 certification, we ensure each bearing meets strict quality standards. With a 42x57x30mm specification and P0-P4 precision ratings, this closed-type needle bearing delivers consistent performance in industrial machinery applications such as machine tools and reducers, where durability and accuracy are critical.

Optimal Performance in Demanding Industrial Environments

This Radial Needle Roller Bearing excels in applications requiring high radial load capacity in a compact design. The closed type construction provides effective contamination protection, making it suitable for machinery operating in moderate dust or debris environments. With lubrication options of grease or oil, it adapts to various operating conditions, ensuring smooth rotation even under continuous use in industrial settings where reliability directly impacts productivity.

Key Technical Features That Enhance Machinery Performance

The NKI42/30 42x57x30mm Bearing incorporates several technical features that contribute to its superior performance. The precision rating options from P0 to P4 allow customization based on application requirements—P4 precision ensures minimal runout for high-speed machinery, while P0 offers cost-effective reliability for general industrial use. Clearance options (C0, C3, C4) accommodate thermal expansion and mounting conditions, preventing premature failure due to misalignment. Constructed from high-grade bearing steel, this bearing delivers excellent wear resistance, maintaining performance even under heavy loads typical in industrial machinery.

Choose Value Over Low Cost: The Impact of Quality Bearings

Opting for genuine high-quality bearings reduces long-term costs compared to cheap alternatives. Counterfeit bearings often lack proper material heat treatment, leading to early fatigue and potential machinery damage. Our NKI42/30 Needle Roller Bearing, backed by a 12-month global warranty, ensures consistent performance and reduces the risk of unexpected failures. The investment in quality translates to lower maintenance expenses, fewer production interruptions, and extended machinery lifespan—ultimately lowering your total cost of ownership.

Why Industrial Buyers Partner With Us for Bearings

With over 18 years of experience manufacturing bearings for global markets, we bring proven expertise to every order. Our ISO14001 certified facility maintains strict quality control through a dedicated QC lab, ensuring each bearing meets specification. We support flexible orders with 1pc MOQ for standard items, 3-5 days sample lead time, and 5-15 days bulk delivery—ideal for both emergency repairs and planned production. Our technical team provides free guidance to ensure proper bearing selection, and we offer defect replacement or refund for manufacturing issues, giving you confidence in your purchase.

Packaging & Shipping

  • Secure carton and pallet packaging to prevent damage during transit
  • 3-7 days delivery time for standard orders
  • Multiple logistics options including express, air, and sea freight
  • Real-time tracking provided for all shipments
  • 1pc minimum order quantity to support small-batch and emergency needs

Get Your NKI42/30 Bearing Shipped Today

Don’t let bearing issues slow down your production. Whether you need a single replacement or bulk order, our NKI42/30 42x57x30mm Bearing is ready to ship. Contact us with your requirements, and we’ll ensure you get the right bearing quickly, minimizing downtime and keeping your machinery running at peak efficiency.

Frequently Asked Questions

Q: Is this NKI42/30 bearing a genuine product?

A: Yes, we are an integrated manufacturer with strict quality control processes. Each bearing is produced in our ISO9001 certified facility and comes with full traceability documentation.

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

A: Provide your equipment model or specific application requirements, and our technical team will verify compatibility based on load, speed, and dimensional parameters.

Q: What warranty coverage do you offer for this bearing?

A: We provide a 12-month global warranty covering manufacturing defects. If a bearing fails due to production issues, we offer free replacement or refund.

Q: What is the minimum order quantity for the NKI42/30 bearing?

A: We accept orders starting from 1 piece, making it suitable for emergency repairs and small-batch requirements.

Q: How quickly can you ship the NKI42/30 bearing?

A: Standard delivery time is 3-7 days. For urgent needs, we offer expedited shipping options to meet your timeline.

Q: How do you ensure bearing quality before shipment?

A: Each bearing undergoes inspection in our QC lab, checking dimensions, precision, and surface quality. We also verify lubrication and packaging integrity before dispatch.

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

Quality Assurance
100% Inspection

High-grade chrome steel, raw material QC, full-process monitoring, ISO/ABMA/DIN compliance.

Delivery
3-15 Days

Samples in 3-5 days, bulk orders 5-15 days. Free samples for distributors (freight collect).

Customization
Full OEM/ODM

P0-P4 precision grades, Z2-Z3-Z4 noise levels. Custom drawings welcome.

After-Sales
12-Month Warranty

Professional technical guidance and failure solutions from our R&D team.

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Our R&D team supports full OEM/ODM customization with technical drawings. Contact us for stable factory pricing and reliable supply.

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