High Precision NTN Spherical Roller Bearing 21307 35x80x21mm for Gearbox Fast Delivery
Famous Brand Bearing

ISO

Certified

P0-P4

Precision

1 PC

Min. Order

Famous Brand Bearing NTN Bearings NTN Bearings

High Precision NTN Spherical Roller Bearing 21307 35x80x21mm for Gearbox Fast Delivery

Ensure smooth gearbox operation with the High Precision NTN Spherical Roller Bearing 21307, engineered to deliver consistent performance even under heavy loads. This 35x80x21mm bearing minimizes downtime with its long service life and high-speed, low-noise design—perfect for keeping your machinery running at peak efficiency.

  • Precision-crafted to NTN standards, ensuring reliable rotation and reduced maintenance needs
  • Customizable options available to meet specific industrial requirements, backed by our factory's OEM/ODM expertise
  • Fast delivery (3-5 days for samples, 5-15 days for bulk) ensures you get the parts you need without delays
  • Comes in secure carton pallet packaging, protecting the bearing during transit for immediate installation

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. 21307
Feature Long Life, High Speed, Low Noise
Specification 35x80x21mm
Trademark NTN
Origin Japan
HS Code 8482300000
Package Size 5.50cm * 10.00cm * 4.50cm
Package Gross Weight 0.550kg

Application Industries

Industry Typical Equipment
Industrial Manufacturing Gearboxes, Machine Tools, Conveyors
Automotive Transmission Systems, Drive Axles
Heavy Machinery Excavators, Agricultural Tractors
Home Appliances Industrial Fans, Compressors

Minimize Downtime with Genuine High Precision NTN Spherical Roller Bearing 21307

Equipment failures caused by substandard bearings lead to costly production halts. Many buyers struggle with long lead times for specialized bearings or uncertainty about product authenticity. When your gearbox needs a reliable replacement, waiting weeks for delivery isn’t an option—you need a bearing that arrives quickly and performs as promised.

Genuine NTN Spherical Roller Bearing 21307 for Immediate Availability

Our High Precision NTN Spherical Roller Bearing 21307 solves these challenges with authentic Japanese manufacturing and fast delivery. As a professional bearing supplier with decades of export experience, we maintain stock of critical components like this 35x80x21mm spherical roller bearing, ensuring you get the parts you need without unnecessary delays. Whether for gearbox repair or scheduled maintenance, this bearing delivers the performance your equipment demands.

Engineered for High-Speed, Heavy-Duty Applications

The NTN Spherical Roller Bearing 21307 is designed to excel in demanding environments. Its high-speed capability and low noise operation make it ideal for gearboxes, where smooth rotation and reliability are essential. The bearing handles radial and axial loads efficiently, maintaining stability even under varying conditions—whether in industrial machinery, automotive transmissions, or agricultural equipment.

Key Features That Ensure Performance

This 35x80x21mm spherical roller bearing combines precision engineering with durable materials to deliver long service life. The “High Precision” designation reflects tight manufacturing tolerances, ensuring proper fit and reducing vibration in high-speed applications. Its low noise特性 enhances workplace comfort while indicating consistent internal clearances and quality construction. The long-life design minimizes replacement frequency, lowering maintenance costs over time.

Avoid Hidden Costs of Counterfeit Bearings

Choosing genuine NTN bearings over counterfeits protects your equipment and bottom line. Fake bearings often fail prematurely, causing secondary damage to gearboxes and other components. The resulting downtime, repair expenses, and lost production can far exceed the initial savings of cheaper alternatives. Our genuine NTN 21307 bearing meets strict international standards, ensuring reliable performance and reducing the risk of unexpected failures.

Why Global Buyers Choose Saifan Bearings

With ISO 9001:2015 and ISO 14001 certifications, we adhere to rigorous quality control processes from procurement to delivery. Our team includes experienced QC staff who inspect every bearing before shipment, verifying dimensions and performance. As a high-tech enterprise with a professional R&D team, we offer technical support to help you select the right bearing for your application. We serve customers in Europe, North America, Southeast Asia, and the Middle East, providing consistent supply and responsive service.

Packaging & Shipping

  • Packaged in carton with pallet reinforcement for secure transport
  • Sample orders shipped within 3-5 working days
  • Bulk orders delivered in 5-15 working days
  • Multiple logistics options including international couriers and freight
  • 1 piece MOQ for standard bearings, ideal for emergency repairs

Get Your NTN 21307 Bearing Shipped Today

Don’t let equipment downtime affect your productivity. The High Precision NTN Spherical Roller Bearing 21307 is in stock and ready to ship. Whether you need a single unit for emergency repair or bulk quantities for planned maintenance, we can fulfill your order quickly and reliably.

Frequently Asked Questions

Q: Is this a genuine NTN bearing?

A: Yes, we supply genuine original NTN bearings sourced directly from authorized channels, ensuring authenticity and quality.

Q: How do I confirm if this bearing fits my gearbox?

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

Q: What is the warranty period for this bearing?

A: We offer a 12-month warranty from the date of delivery, covering manufacturing defects with free replacement or refund.

Q: What is the minimum order quantity?

A: Standard bearings like the 21307 have a 1 piece MOQ, supporting both small and large orders.

Q: How long will it take to receive my order?

A: Sample orders ship in 3-5 working days, with bulk orders delivered within 5-15 working days via your chosen logistics method.

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

Tags: 35x80x21mm spherical roller bearing Gearbox Spherical Roller Bearing High Precision NTN Spherical Roller Bearing 21307 High Speed Low Noise Spherical Roller Bearing NTN 21307 Bearing for Gearbox Fast Delivery NTN Spherical Roller Bearing Precision Spherical Roller Bearing 35x80x21mm Spherical Roller Bearing 21307
Fast Response · Within 24 Hours

Request a Quote for
This Product

Tell us your requirements -- quantity, specifications, or customization needs. Our team will respond with a competitive quote within 24 hours.

01

Submit Inquiry

Fill in your product requirements and contact details.

02

Confirm Parameters

Our team confirms specs, quantity, and arranges samples.

03

Receive Quotation

Get a detailed PI with competitive pricing and trade terms.

04

Place Order

Complete payment and we arrange production & delivery.

Product Inquiry Form

By submitting, you agree to be contacted by our sales team. We respect your privacy.

Related Products

More products from the same category

View All
Double Row Angular Contact Ball Bearing 3212 A-2Z/C3 MT33 for High Speed Machinery

Famous Brand Bearing

Double Row Angular Contact Ball Bearing 3212 A-2Z/C3 MT33 for High Speed Machinery

<p>Ensure smooth, high-speed rotation in your machinery with the <strong>Double Row Angular Contact Ball Bearing 3212 A-2Z/C3 MT33</strong>, engineered to minimize vibration and extend equipment lifespan even under demanding conditions. This precision-grade bearing (P0-P4) features a steel cage and dual rubber seals (2Z) to lock in lubrication and prevent contamination, delivering consistent performance for industrial machinery, automotive systems, and high-speed applications.</p><ul><li>MT33 grease specification ensures optimal thermal stability, reducing maintenance needs for continuous operation</li><li>Double row design handles combined radial and axial loads, eliminating the hassle of mismatched single-row setups</li><li>Complies with ISO standards for reliable fit and interchangeability, backed by Saifan’s 12-month warranty for peace of mind</li></ul>

View Details
Double Row Cylindrical Roller Bearing Nu2311 Ec C3 for Heavy Machinery Construction Equipment

Famous Brand Bearing

Double Row Cylindrical Roller Bearing Nu2311 Ec C3 for Heavy Machinery Construction Equipment

<p>Ensure smooth, heavy-duty performance for your construction equipment with the <strong>Double Row Cylindrical Roller Bearing NU2311 EC C3</strong>—engineered to minimize downtime and maximize reliability in demanding work environments. This precision bearing handles axial and radial loads with ease, thanks to its separated design and C3 clearance, making it ideal for heavy machinery like excavators and industrial gearboxes.</p><ul><li>Constructed from high-grade bearing steel (60-64 HRC hardness) for exceptional wear resistance and long service life</li><li>Available with brass or steel cages to suit specific operational needs, ensuring stable rotation even under extreme conditions</li><li>Complies with international standards, backed by Saifan’s strict quality control and 12-month warranty for peace of mind</li></ul>

View Details
Durable Double Row Self-Aligning SKF Spherical Roller Bearing 23140 Cc K/C4 W33 for Industrial Machinery

Famous Brand Bearing

Durable Double Row Self-Aligning SKF Spherical Roller Bearing 23140 Cc K/C4 W33 for Industrial Machinery

<p>Ensure smooth, long-lasting operation for your industrial machinery with the <strong>Durable Double Row Self-Aligning SKF Spherical Roller Bearing 23140 Cc K/C4 W33</strong>. This Spherical Roller Bearing minimizes downtime by automatically compensating for shaft misalignment, even under heavy loads, making it ideal for high-stress applications like conveyors and crushers.</p><ul><li>Constructed with premium Chrome Steel Gcr15 for exceptional wear resistance and prolonged service life, reducing frequent replacements</li><li>Double row design with W33 suffix ensures optimal load distribution and heat dissipation, critical for continuous industrial use</li><li>Self-aligning capability eliminates the need for precise mounting alignment, simplifying installation and reducing maintenance costs</li></ul>

View Details
HS7011-E-T-P4s-UL FAG Angular Contact Ball Bearing for High-Precision Machine Tool Spindle

FAG Bearings

HS7011-E-T-P4s-UL FAG Angular Contact Ball Bearing for High-Precision Machine Tool Spindle

<p>Ensure ultra-smooth, high-precision rotation for your machine tool spindle with the <strong>FAG Angular Contact Ball Bearing</strong> HS7011-E-T-P4s-UL. Engineered to deliver exceptional stability even under heavy loads, this bearing minimizes vibration and extends spindle service life, addressing the critical need for consistent performance in precision machining operations.</p><ul><li>P4s precision grade ensures tight dimensional tolerance, ideal for high-speed spindle applications requiring micron-level accuracy</li><li>25° contact angle (E) optimizes axial load capacity, enhancing rigidity for heavy-duty cutting tasks</li><li>Premium steel construction and严格的质量控制 guarantee reliable operation, reducing unplanned downtime and maintenance costs</li></ul>

View Details