Deep Groove Ball Bearing Koyo 6204r 6304 6907 for Industrial Machinery High Precision
ISO 9001:2015 Certified

Deep Groove Ball Bearing Koyo 6204r 6304 6907 for Industrial Machinery High Precision

<p>Ensure smooth, precise rotation for your industrial machinery with our <strong>Deep Groove Ball Bearing</strong>—engineered to minimize downtime and maximize operational efficiency. Crafted from high-grade bearing steel and precision-machined to meet P0-P4 standards, this single-row radial bearing delivers exceptional load capacity and wear resistance, even in demanding manufacturing environments.</p><ul><li>Models include Koyo 6204r, 6304, and 6907, with critical dimensions like 45*68*12mm ensuring exact compatibility with industrial equipment</li><li>Unseparated design maintains structural integrity during high-speed operation, reducing maintenance needs and extending service life</li><li>Backed by our ISO 9001-certified quality control, each bearing undergoes rigorous noise and vibration testing to guarantee reliable performance you can trust</li></ul>

Precision

P0 – P4

Noise Grade

Z2 / Z3 / Z4

Min. Order

1 Piece

Sample 3–5 Days
12-Month Warranty
OEM / ODM Support
Free Sample Available

Product Description

Product Specifications

ParameterDetails
Model NO.Koyo 6204r, 6304, 6907, 16007, 6007, 6207, 6207r, 6307
SeparatedUnseparated
Rows NumberSingle
Load DirectionRadial Bearing
MaterialBearing Steel
Specification45*68*12mm
TrademarkNTN
OriginGermany, Sweden, Japan
HS Code8482102000
Production Capacity1000000 units

Application Industries

IndustryTypical Equipment
Industrial MachineryMachine tools, Printing presses, Reducers, Conveyors
AutomotiveHub assemblies, Electric motors, Gearboxes
AgricultureHarvesters, Tractors, Farm machinery
New EnergyWind turbines, Photovoltaic equipment
Home AppliancesCompressors, Fans, Pumps

Reduce Downtime with High Precision Deep Groove Ball Bearings Koyo 6204r, 6304, 6907

Equipment failures from substandard bearings cost manufacturers thousands in lost production each year. Misaligned tolerances cause premature wear, while inconsistent material quality leads to unexpected breakdowns during critical operations. Sourcing authentic high precision bearings with reliable delivery often means navigating minimum order quantities that tie up capital or long lead times that delay repairs.

Genuine Bearings with Flexible Supply for Industrial Needs

Our Deep Groove Ball Bearings, including Koyo 6204r, 6304, and 6907 models, address these challenges with authentic components and adaptable service. As an integrated manufacturer and exporter with ISO9001 certification, we maintain strict quality control across our production process, ensuring each bearing meets P0-P4 precision standards. Whether you need a single unit for emergency maintenance or bulk orders for production lines, our 1pc MOQ for standard items and 3-5 day sample lead time keep your operations running without unnecessary delays.

Engineered for Reliable Performance in Demanding Conditions

These High Precision Ball Bearings excel in industrial machinery applications requiring consistent radial load handling and smooth rotation. Designed as single-row, unseparated units, they deliver stable performance in machine tool spindles, printing press rollers, and reducer assemblies operating at moderate to high speeds. The bearing steel construction ensures durability under continuous use, while precise manufacturing minimizes noise and vibration—critical factors in maintaining product quality and extending equipment lifespan.

Key Technical Features That Matter

The 45*68*12mm specification of these Industrial Machinery Bearings balances compact design with load capacity, making them versatile for space-constrained applications. As radial bearings, they efficiently support axial loads in both directions, a essential characteristic for equipment with bidirectional movement. The unseparated design simplifies installation and maintenance, reducing assembly time and potential errors. While specific dynamic load ratings and speed limits vary by model, each bearing undergoes rigorous testing to ensure compliance with international standards, providing predictable performance under real-world conditions.

Why Authentic Bearings Lower Total Costs

Choosing genuine 6304 High Precision Bearings over counterfeit alternatives eliminates hidden expenses associated with premature failure. Fake bearings often use substandard steel that fatigues quickly, leading to unexpected downtime, repair labor costs, and potential damage to mating components. Our products, sourced from certified origins including Germany, Sweden, and Japan, come with a 12-month global warranty, covering manufacturing defects and ensuring replacement or refund for non-conforming units. This commitment to quality translates to lower total cost of ownership by reducing maintenance frequency and extending equipment service intervals.

Our Promise to Industrial Buyers

With 18 years of experience serving global markets across Europe, America, Southeast Asia, and the Middle East, we've built a reputation for reliability. Our in-house R&D and QC lab ensure each bearing meets strict performance criteria before shipment. We offer free technical guidance to help you select the right bearing for your application, and our defect replacement policy provides peace of mind. For urgent needs, our 5-15 day bulk delivery ensures you receive critical components when you need them, supported by flexible payment options including T/T, credit card, and Alibaba trade assurance.

Packaging & Shipping

  • Securely packed in original packaging with product identification labels
  • Sample lead time: 3–5 days for standard items
  • Bulk delivery: 5–15 days after order confirmation
  • Multiple shipping options: DHL, FedEx, UPS, air freight, and sea freight
  • 1pc minimum order quantity available for emergency repairs

Get Your Bearings Delivered Fast

Don’t let equipment downtime erode your productivity. Whether you need Koyo 6204r for industrial use or other precision bearings, send us your requirements today. With our ready stock and efficient logistics, we can have your order on the way quickly, minimizing disruption to your operations.

Frequently Asked Questions

Q: Are these bearings authentic Koyo products?

A: We supply authentic NSK/INA bearings and maintain strict quality control for our manufactured products. Each unit can be traced through our supply chain, and we provide documentation to verify authenticity upon request.

Q: How do I confirm if the 6304 bearing fits my machine?

A: Provide your equipment model or technical specifications (shaft diameter, housing bore, load requirements), and our technical team will verify compatibility free of charge.

Q: What warranty coverage do you offer?

A: All bearings come with a 12-month global warranty. Manufacturing defects are covered by free replacement or refund, and we provide technical support throughout the warranty period.

Q: What is the minimum order quantity?

A: We accept 1pc orders for standard items, making us ideal for emergency repairs or small-batch production needs.

Q: How long does shipping take to Europe?

A: Standard air freight to Europe typically takes 5–7 business days. Express options like DHL/FedEx are available for urgent orders, with delivery in 2–3 days.

Q: How can I verify the bearing's precision class?

A: Each bearing is marked with its precision class (P0-P4) and noise grade (Z2-Z4). We can provide certification of compliance with ISO standards for critical applications.

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Deep Groove Ball Bearing Koyo 6204r 6304 6907 for Industrial Machinery High Precision?

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Phone / WhatsApp

+86 156 6666 3558

Address

2612 Ming Quan, Chun Xiao No.88 Dikou Rd,
TianQiao Dist, Jinan, Shandong, China

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