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NTN Bearings
<p>Ensure smooth, reliable rotation in auto parts with our <strong>Deep Groove Ball Bearing 604 605</strong>, designed to deliver consistent performance and extended service life. Crafted from high-grade bearing steel with a 0° contact angle, this 4x12x4mm radial bearing minimizes friction and noise, making it ideal for precision automotive applications.</p><ul><li>Single-row design optimized for radial load handling, ensuring stable operation in demanding conditions</li><li>Available under trusted brands Timken, NSK, Koyo, and NTN, guaranteeing authenticity and compliance with international standards</li><li>Flexible supply with our 1-piece MOQ for standard bearings, backed by a 12-month warranty and dedicated technical support</li></ul>
Precision
P0 – P4
Noise Grade
Z2 / Z3 / Z4
Min. Order
1 Piece
| Parameter | Details |
|---|---|
| Model NO. | 604, 605, 606, 607, 608 |
| Rows Number | Single |
| Load Direction | Radial Bearing |
| Material | Bearing Steel |
| Contact Angle | 0° |
| Specification | 4×12×4mm |
| Trademark | Timken, NSK, Koyo, NTN |
| HS Code | 8482102000 |
| Industry | Typical Equipment |
|---|---|
| Automotive | Transmission systems, auxiliary components, steering mechanisms |
| Industrial Manufacturing | Small electric motors, precision machinery, pumps |
| Home Appliances | Power tools, small appliances, ventilation equipment |
Auto parts manufacturers and repair shops often face unexpected production delays due to premature bearing failure, especially with critical components like 4x12x4mm deep groove ball bearings. Sourcing reliable replacements in small quantities can be challenging, while inconsistent quality from uncertified suppliers leads to frequent replacements and increased maintenance costs.
As a professional bearing supplier with over 15 years of export experience, we provide authentic Deep Groove Ball Bearings 604 and 605 in the precise 4x12x4mm size required for auto parts. Our direct partnerships with Timken, NSK, Koyo, and NTN ensure product traceability, while our flexible order policy allows 1-piece MOQ for standard bearings—ideal for urgent repairs or small-batch production needs.
The 604 and 605 Deep Groove Ball Bearings are engineered to handle radial loads in high-speed rotating components, making them suitable for automotive transmission systems, small electric motors, and precision industrial machinery. With a contact angle of 0°, these single-row bearings deliver stable operation under continuous use, ensuring minimal vibration and extended service life in both automotive and general industrial environments.
Crafted from high-grade bearing steel, these bearings offer excellent wear resistance and load capacity critical for automotive applications. The 4mm width and 12mm outer diameter balance compact design with structural integrity, allowing installation in space-constrained components. Each unit undergoes dimensional detection and performance testing in our in-house laboratory, complying with ISO industrial standards to guarantee consistent precision and noise control—essential for reducing equipment downtime and maintenance frequency.
Counterfeit 604 and 605 bearings often fail within months, causing secondary damage to shafts and housings, unplanned production stops, and increased labor costs for replacements. Genuine Timken NSK Koyo NTN bearings, by contrast, provide predictable performance and meet strict quality criteria, lowering total ownership costs through longer service intervals and reduced failure risks. Our products are certified under ISO 9001:2015 quality management system, ensuring compliance with global automotive standards.
With production capacity exceeding 1,000,000 units annually, we maintain stable inventory to fulfill orders within 3-5 working days for samples and 5-15 days for bulk quantities. Our professional technical team offers free guidance on bearing selection and installation, while a 12-month warranty covers manufacturing defects, with replacement or refund options available. We serve clients across Europe, North America, Southeast Asia, and the Middle East, supported by multiple secure payment methods including T/T, Credit Card, and Alibaba platform transactions.
Whether you need urgent replacements for auto parts production or reliable stock for ongoing operations, our genuine 604 and 605 Deep Groove Ball Bearings ensure consistent performance. Send your order details, including quantity and application requirements, to receive a prompt quote and secure your shipment without delay.
Q: Are these bearings genuine Timken, NSK, Koyo, or NTN products?
A: Yes, we supply genuine original brand bearings sourced directly from authorized channels, with full traceability documentation available upon request.
Q: How can I confirm if the 604/605 4x12x4mm bearing fits my equipment?
A: Provide your equipment model or technical drawings, and our engineering team will verify compatibility based on load, speed, and dimensional requirements.
Q: What warranty coverage do you offer?
A: All products come with a 12-month warranty from the delivery date, covering manufacturing defects with free replacement or refund options.
Q: What is the minimum order quantity?
A: Standard bearings have a 1-piece MOQ, while customized orders can be negotiated based on specific requirements.
Q: How do you ensure product quality before shipment?
A: Each bearing undergoes strict inspection, including dimensional checks and performance testing, in compliance with ISO standards and our in-house quality control protocols.
Ready to order or need a quote?
Send your bearing designation, application details, and quantity — we'll respond within 24 hours.
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Phone / WhatsApp
+86 156 6666 3558Address
2612 Ming Quan, Chun Xiao No.88 Dikou Rd,
TianQiao Dist, Jinan, Shandong, China
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