Saifan Bearing
High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery
High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery
High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery
High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery
High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery
High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery
High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery
High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery
High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery
High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery
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High Precision Double Row Cylindrical Roller Bearings NN3030 NN3032 NN3034 P4 W33 for Industrial Machinery

SKU: 19d00f37aaa2

Ensure smooth, precise rotation for your industrial machinery with our High Precision Cylindrical Roller Bearings. Engineered to deliver exceptional radial load capacity and minimal vibration, these double row NN3030, NN3032, and NN3034 bearings (P4 precision grade, W33 design) reduce downtime and extend equipment lifespan—even under heavy operating conditions.

  • Separated inner/outer rings allow easy mounting and maintenance, a critical feature for industrial setups requiring quick part replacement
  • Constructed with high-grade bearing steel and precision-ground raceways to meet ISO standards, ensuring consistent performance in machine tools, reducers, and heavy-duty equipment
  • Available with flexible MOQ and fast 3-5 day sample delivery, supporting your production timelines without compromising on quality
Factory Price
¥1.05
MOQ: 1pc · Bulk discount available
ISO 9001
Certified
12-Month
Warranty
3-5 Days
Sample Delivery
Technical Documentation

Product Details

Product Specifications

Transportpaket

Parameter Details
Model NO. NN3030
Outer Dimension 35mm-180mm
Material Bearing Steel
Spherical Non-Aligning Bearings
Load Direction Radial Bearing
Separated Separated
Product Name Cylindrical Roller Bearing
Structure Cylindrical
Seals Type Open
Lubricate Oil Grease Dry
Precision Rating P0 P6 P5 P4 P2
Number of Row Single Row
Vibration V1V2V3V4
Service OEM ODM
Carton Pallet
Specification 150*225*56 mm
Trademark BDL
Origin China
HS Code 8482500090
Production Capacity 100000

Application Industries

Industry Typical Equipment
Industrial Machinery Machine Tools, Printing Equipment, Reducers
Automotive Transmission Systems, Gearboxes
Manufacturing CNC Machines, Spindles, Electric Motors
Agriculture Harvesters, Tractors, Heavy-Duty Farm Machinery
New Energy Wind Turbines, Solar Panel Production Equipment

Reduce Machinery Downtime with High Precision Double Row Cylindrical Roller Bearings NN3030 P4

Industrial machinery operators know the cost of unexpected downtime—missed deadlines, maintenance overtime, and production losses add up quickly. When low-precision bearings vibrate excessively or fail prematurely, machine tools, reducers, and printing equipment grind to a halt. Sourcing reliable high-precision bearings with flexible MOQs and fast delivery can mean the difference between meeting targets and falling behind.

Engineered for Precision: High Precision Cylindrical Roller Bearings You Can Rely On

Our High Precision Double Row Cylindrical Roller Bearings (NN3030, NN3032, NN3034) are designed to solve these challenges. With P4 precision rating and W33 lubrication groove design, they deliver stable performance in high-speed, heavy-load industrial applications. Backed by our ISO9001-certified production processes and 12-month global warranty, these bearings ensure consistent quality—no more guessing about durability or fit. Whether you need a single replacement for emergency repairs or bulk orders for production lines, our 1pc MOQ and 3–5 day sample lead time keep your operations running.

Optimal Performance in Demanding Industrial Environments

These Double Row Cylindrical Bearings excel in machinery where radial load capacity and precision are critical. From CNC machine spindles to heavy-duty reducers, their separated inner and outer rings allow for easy mounting and dismounting, simplifying maintenance. The non-aligning design ensures stability under high radial loads, while the V1-V4 vibration grades minimize noise and energy loss. In temperatures ranging from standard to high-heat industrial settings, the bearing steel construction maintains integrity, making them ideal for continuous operation in manufacturing plants and processing facilities.

Technical Features That Drive Machinery Efficiency

The precision rating of P4 is not just a specification—it directly impacts your machinery’s accuracy. P4-grade bearings reduce runout and axial clearance, ensuring tighter tolerances in CNC machining and printing applications. The separated structure allows for quick installation, reducing downtime during maintenance. With lubrication options including oil, grease, and dry operation, these bearings adapt to diverse machinery requirements. The radial load design handles heavy loads without compromising speed, making them suitable for both high-torque reducers and high-RPM spindles. Each bearing undergoes rigorous QC testing in our lab, ensuring compliance with global industrial standards.

Why Cutting Corners on Bearings Costs More in the Long Run

Choosing low-quality bearings to save on upfront costs often leads to higher expenses later. Counterfeit or substandard bearings fail prematurely, causing equipment damage and unplanned downtime. A single hour of production loss in a manufacturing plant can exceed the cost of a premium bearing. Our High Precision Double Row Bearings, built with authentic bearing steel and strict quality controls, offer longer service life and consistent performance. With free technical guidance and defect replacement policies, we help you avoid the hidden costs of poor-quality components—protecting your machinery investment and bottom line.

Your Trusted Partner for Bearing Solutions Since 2005

Jinan Saifan Bearing has served global buyers across Europe, America, Southeast Asia, and the Middle East for over 18 years. Our integrated manufacturing and exporting capabilities ensure stable supply, even for custom OEM/ODM requirements. With a full R&D team and ISO14001-certified facilities, we prioritize both quality and sustainability. Our 100,000-unit monthly production capacity means we can fulfill large orders without delays, while our free sample policy (buyer covers freight) lets you verify performance before committing. We stand behind every bearing with a 12-month warranty and responsive after-sales support, ensuring you have a reliable partner for the long term.

Packaging & Shipping

  • Secure carton and pallet packaging to prevent damage during transit
  • Sample lead time: 3–5 days for standard items
  • Bulk delivery: 5–15 days, with flexible shipping via T/T, credit card, or Alibaba trade
  • Real-time tracking provided for all shipments
  • 1pc MOQ available for standard bearings, supporting emergency repairs and small-batch orders

Get Your Precision Bearings Shipped Fast

Don’t let bearing issues slow down your production. Send us your bearing model (NN3030, NN3032, or NN3034), application details, and quantity, and we’ll provide a quote within 24 hours. With free samples available and bulk orders shipping in as little as 5 days, you can minimize downtime and keep your machinery running at peak efficiency.

Frequently Asked Questions

Q: Are these bearings authentic and traceable?

A: Yes, all our bearings are manufactured in our ISO9001-certified facilities and can be traced through our quality control system. We provide full documentation for OEM/ODM orders.

Q: How do I confirm if the NN3030 P4 bearing fits my machine?

A: Provide your equipment model or technical specifications (load, speed, operating temperature), and our engineering team will verify compatibility and offer free选型 guidance.

Q: What is your warranty policy?

A: We offer a 12-month global warranty covering manufacturing defects. Defective products will be replaced or refunded at no cost to you.

Q: What is the minimum order quantity?

A: Standard items have a 1pc MOQ, ideal for emergency repairs

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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Need a Custom Solution?

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