Ball Bearing

Deep Groove Ball Bearing 6321-2RS P0-P4 Precision for Industrial Machinery

SKU: 04281450f516 In Stock

Ensure smooth, long-lasting operation for your industrial machinery with the Deep Groove Ball Bearing 6321-2RS, engineered to deliver P0-P4 precision that minimizes downtime and maximizes productivity. Crafted from high-grade bearing steel with a 0° contact angle, this radial bearing handles heavy radial loads while maintaining consistent performance—ideal for machine tools, textile equipment, and other industrial applications where reliability can’t be compromised.

  • Grease or oil lubrication flexibility adapts to your specific operating conditions, reducing maintenance hassle
  • Z1V1-Z3V3 vibration grades ensure quiet operation, critical for precision machinery environments
  • Unseparated single-row design guarantees easy installation and stable rotation, backed by Saifan’s strict ISO 9001 quality control
  • Supports OEM/ODM customization to meet unique machinery specifications, with fast 3-5 day sample delivery for urgent needs
Wholesale Price (FOB)
¥1.50
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. 6321-2RS
Lubrication Grease or Oil
Precision Rating P0 P6 P5 P4 P2
Vibration Z1V1 Z2V2 Z3V3
Service OEM ODM
Aligning Non-Aligning Bearing
Separated Unseparated
Rows Number Single
Load Direction Radial Bearing
Material Bearing Steel
Contact Angle
Transport Package Carton Pallet
Specification 105×225×49mm
HS Code 8482102000
Production Capacity 1000000 units

Application Industries

Industry Typical Equipment
Industrial Machinery Machine Tools, Printing Presses, Gearboxes
Automotive Electric Motors, Drive Systems
New Energy Wind Turbine Generators, Solar Equipment
Agriculture Harvesters, Tractors
Construction Conveyors, Pumps

Minimize Downtime with Reliable Deep Groove Ball Bearing 6321-2RS for Industrial Machinery

Industrial operations face constant challenges from unexpected equipment failures—especially when bearings underperform. Premature wear, vibration issues, and mismatched precision often lead to costly production halts. Sourcing high-precision bearings that balance durability with quick availability can be a persistent headache for maintenance managers and procurement teams.

Deep Groove Ball Bearing 6321-2RS: Engineered for Industrial Reliability

Our 6321-2RS deep groove ball bearing addresses these pain points with P0-P4 precision ratings and Z2-Z4 noise control, ensuring stable performance in machinery like machine tools and gearboxes. As an integrated manufacturer with ISO9001 and ISO14001 certifications, we deliver consistent quality, supported by a full R&D team and QC lab. Standard items are available with a 1pc MOQ, and samples ship within 3–5 days—perfect for urgent repairs or small-batch testing.

Optimal Performance in Critical Industrial Conditions

This 6321-2RS bearing excels in radial load applications, handling continuous operation in industrial environments. Its single-row design and non-aligning structure make it ideal for high-speed rotating equipment, while the 2RS seal provides effective protection against contaminants—extending service life in dusty or moist conditions. Whether powering conveyor systems or precision printing presses, it maintains stability under varying temperatures and load demands.

Technical Specifications That Drive Machinery Efficiency

The 6321-2RS bearing’s 105×225×49mm dimensions balance load capacity with compact design, fitting seamlessly into standard industrial setups. Precision ratings from P0 (general purpose) to P4 (high precision) allow customization for specific machinery requirements—P4 grade, for example, minimizes runout in CNC machine spindles, reducing vibration and improving workpiece accuracy. Vibration grades Z1V1 to Z3V3 further ensure quiet operation, critical for noise-sensitive production floors. Constructed from high-quality bearing steel, it delivers long-term durability even under heavy loads.

Why Genuine Precision Matters More Than Cost

Choosing substandard bearings may cut initial costs, but the hidden expenses of frequent replacements, unplanned downtime, and damaged equipment quickly add up. Our 6321-2RS bearing, backed by 12-month global warranty, eliminates these risks. Each unit undergoes strict quality checks, from raw material inspection to final performance testing, ensuring compliance with international standards. For industrial machinery makers, this means fewer breakdowns, lower maintenance costs, and consistent production output—ultimately reducing total cost of ownership.

Your Trusted Partner for Bearing Solutions

With 18 years of experience serving global buyers across Europe, America, and Southeast Asia, Jinan Saifan Bearing has built a reputation for reliability. Our OEM/ODM capabilities support custom specs, while bulk delivery within 5–15 days ensures minimal lead times. We offer free technical guidance to help you select the right bearing for your application, and our defect replacement policy provides peace of mind. As a certified supplier, we prioritize transparency—every bearing can be traced through our quality control system, ensuring you receive exactly what you ordered.

Packaging & Shipping

  • Secure carton and pallet packaging to prevent damage during transit
  • Sample lead time: 3–5 days for standard specifications
  • Bulk delivery: 5–15 days, with flexible shipping via air, sea, or express (DHL/FedEx/UPS)
  • Real-time tracking provided for all shipments
  • 1pc MOQ available for standard items, supporting emergency repairs and small orders

Get Your 6321-2RS Bearing Shipped Today

Don’t let equipment downtime affect your bottom line. Whether you need a single replacement bearing or a bulk order for production, we’re ready to fulfill your request. Send us your bearing model, application details, and quantity, and our team will provide a quote within 24 hours. With fast shipping and expert support, we help you get back to full operation quickly.

Frequently Asked Questions

Q: Is this bearing genuine and traceable?

A: Yes, we maintain strict quality control and supply chain transparency. Each bearing is manufactured in our ISO-certified facility and can be traced through our QC system.

Q: How do I confirm if the 6321-2RS fits my machinery?

A: Provide your equipment model or technical specifications (load, speed, operating conditions), and our engineering team will verify compatibility free of charge.

Q: What is the warranty policy?

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

Q: What is the minimum order quantity?

A: Standard items have a 1pc MOQ, ideal for emergency repairs or small-batch testing.

Q: How long does shipping take?

A: Samples ship in 3–5 days, bulk orders in 5–15 days. We offer flexible shipping options to meet your timeline.

Q: Can I request custom specifications?

A: Yes, we provide full OEM/ODM customization, including precision grades, seals, and lubrication, to meet your specific requirements.

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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