Ball Bearing

6307 ZZ RS Deep Groove Ball Bearings 35X80X21mm 3Cr13 Stainless Steel for Industrial Machinery

SKU: 9a69de8f9193 In Stock

Ensure smooth, reliable rotation in industrial machinery with our 6307 deep groove ball bearings, crafted from 3Cr13 stainless steel for exceptional durability in demanding environments. The precision 35x80x21mm dimensions and ZZ/RS seals minimize maintenance needs, letting you focus on productivity rather than frequent part replacements.

  • Single row deep groove design delivers consistent performance across P0-P4 precision grades, ideal for high-load industrial applications
  • 3Cr13 stainless steel construction resists corrosion and wear, extending service life even in harsh operating conditions
  • Flexible lubrication options (grease or oil) adapt to your machinery’s specific requirements, ensuring optimal operation
  • Backed by our ISO 9001-certified quality control, these bearings provide the stability you need to keep production running without unexpected downtime
Wholesale Price (FOB)
¥1.80
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. UCFC208, UCFL206 UCP203, UC203, UK203, UCT203
Feature High Load
Rows Number Single
Raceway Deep Groove Raceway
Material Bearing Steel
Bearing Block Model UK
Product Name Insert Bearing
Lubrication Grease or Oil
Precision Rating P0 P6 P5 P4
Vibration Z1V1 Z2V2 Z3V3
Stock Rich Stocks
Transport by Sea or by Air
Service OEM ODM
Transport Package Carton Pallet
Specification 70*78*305 mm
Trademark BDL/NSK/FYH
Origin China
HS Code 8483200000
Production Capacity 1000000

Application Industries

Industry Typical Equipment
Industrial Machinery Machine Tools, Printing Equipment, Reducers
Agricultural Machinery Harvesters, Tractors
Construction Excavators, Heavy-Duty Machinery
Automotive Wheel Hubs, Gearboxes
Home Appliances Electric Motors, Pumps
New Energy Wind Turbines, Photovoltaic Systems

Minimize Downtime with Reliable 6307 Deep Groove Ball Bearings for Industrial Machinery

Industrial operations face constant challenges from unexpected equipment failures—especially when bearings fail prematurely due to poor quality or incorrect specifications. Sourcing bearings that balance precision, durability, and quick delivery can mean the difference between meeting production deadlines and costly downtime. Many buyers struggle with minimum order quantities that leave them overstocked, or long lead times that delay repairs.

6307 ZZ RS Deep Groove Ball Bearings: Engineered for Industrial Performance

Our 6307 ZZ RS deep groove ball bearings address these pain points with a design optimized for industrial machinery. With dimensions 35mm (inner diameter) x 80mm (outer diameter) x 21mm (width), these 3Cr13 stainless steel bearings deliver the high load capacity and corrosion resistance critical for machine tools, reducers, and conveyor systems. Backed by our ISO9001-certified production processes, each bearing undergoes rigorous quality checks to ensure consistent performance. We offer flexible ordering with 1pc MOQ for standard items and 3–5 day sample lead times, so you get the right bearings when you need them.

Optimal Performance in Demanding Industrial Environments

These 6307 deep groove ball bearings excel in applications requiring reliable rotation under moderate to heavy loads. The deep groove raceway design enables efficient distribution of radial and axial forces, making them ideal for high-speed machinery like electric motors and pumps. The 3Cr13 stainless steel construction provides enhanced resistance to rust and wear, ensuring longevity even in environments with moisture or particulate matter. Whether used in CNC machines, printing presses, or agricultural equipment, these bearings maintain precision across extended operating cycles.

Key Technical Features That Drive Reliability

Precision and performance are built into every component of these bearings. The single row design ensures simplicity in installation while supporting both radial and axial loads, a critical advantage for versatile industrial use. Available in precision ratings from P0 to P4, these bearings meet strict tolerances for runout and dimensional accuracy, reducing vibration and noise in high-speed applications (Z2-Z4 noise grades). The choice of ZZ (metal shielded) or RS (rubber sealed) variants allows customization based on sealing needs—metal shields provide robust protection against debris, while rubber seals offer enhanced retention of lubricants for extended maintenance intervals. Grease or oil lubrication options further adapt the bearings to specific speed and temperature requirements.

Long-Term Value: Avoid the Hidden Costs of Substandard Bearings

Choosing low-quality bearings may seem cost-effective initially, but the hidden expenses add up quickly. Premature failures lead to unplanned downtime, replacement parts, and labor costs—often exceeding the price of a reliable bearing by multiples. Our 3Cr13 stainless steel deep groove bearings are manufactured to international standards, ensuring consistent performance and reducing the risk of unexpected failures. With a 12-month global warranty, we stand behind our products, offering defect replacement or refund to minimize your operational risks. Investing in quality bearings lowers total cost of ownership by extending equipment life and reducing maintenance frequency.

Why Industrial Buyers Choose Saifan Bearings

With over 18 years of experience as an integrated bearing manufacturer and exporter, Saifan Bearings combines technical expertise with global supply chain efficiency. Our ISO9001 and ISO14001 certifications validate our commitment to quality and environmental responsibility. We maintain rich stocks of standard bearings, enabling 5–15 day bulk delivery and rapid response to urgent orders. Our R&D and QC labs ensure each bearing meets design specifications, while OEM/ODM capabilities allow customization for unique industrial needs. We serve clients across Europe, America, Southeast Asia, and the Middle East, providing free technical guidance and responsive after-sales support to keep your machinery running smoothly.

Packaging & Shipping

  • Secure packaging in carton pallets to prevent damage during transit
  • Sample lead time: 3–5 days for standard items
  • Bulk delivery: 5–15 days, with flexible shipping by sea or air
  • Real-time logistics tracking provided for all orders
  • 1pc MOQ available, supporting both small-batch repairs and large-scale production

Get Your 6307 Bearings Delivered Fast

Don’t let equipment downtime impact your productivity. Whether you need a single replacement bearing or bulk order for production, we have the inventory and expertise to meet your needs. Contact us with your bearing specifications, application details, and quantity—our team will provide a quote within 24 hours, ensuring you get back to full operation quickly.

Frequently Asked Questions

Q: Are these 6307 bearings genuine and traceable?

A: Yes, we source materials from certified suppliers and maintain full production records. Each bearing can be traced through our quality control system, ensuring authenticity and compliance with industry standards.

Q: How do I confirm if the 35x80x21mm size fits my machinery?

A: Provide your equipment model or existing bearing part number, and our technical team will verify compatibility. We also offer free sample testing for critical applications.

Q: What is the warranty coverage for these bearings?

A: We offer a 12-month global warranty against manufacturing defects. If a bearing fails under normal operating conditions, we provide replacement or refund.

Q: What is the minimum

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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