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Keep your vehicle’s AC system running smoothly with this reliable Automobile AC Compressor Bearing, designed to eliminate frustrating cooling interruptions and ensure consistent performance even in extreme temperatures. Crafted from high-quality bearing steel and available with precision ratings up to P2, it delivers quiet operation and long-lasting durability—perfect for avoiding costly replacements down the line.
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| Parameter | Details |
|---|---|
| Model Number | NJ304EM |
| Bearing Type | Cylindrical Roller Bearing |
| Specification (d x D x B) | 20*52*15 mm |
| Outer Dimension Range | 35mm-180mm |
| Material | Bearing Steel, Chrome Steel, Ceramic, Nylon |
| Load Direction | Radial Bearing |
| Aligning Type | Non-Aligning Bearings |
| Cage Material | Iron Cage/Brass Cage/Nylon Cage |
| Precision Rating | P0 P6 P5 P4 P2 |
| Seals Type | Open |
| Lubrication Options | Oil Grease Dry |
| Standard Compliance | DIN GB ISO JIS |
| Package Size | 6.5cm×6.5cm×2.5cm |
| Package Gross Weight | 0.2kg |
| Origin | China |
| HS Code | 8482500090 |
| Industry | Typical Applications |
|---|---|
| Automotive | AC Compressor Systems |
| Industrial Machinery | Rotary Equipment, Power Transmission |
Finding the right replacement bearing for automotive AC compressors often means sifting through incompatible dimensions or questionable quality. Mechanics and buyers frequently face premature wear due to imprecise manufacturing, leading to costly downtime and repeated replacements. Sourcing from multiple suppliers for different brands only adds complexity to an already frustrating process.
The NJ304EM cylindrical roller bearing addresses these challenges with ISO 9001-certified production and interchangeable dimensions following international standards (DIN, ISO, JIS). As a full-range bearing supplier, we stock both our own brand and major international equivalents, ensuring you get the right part without switching vendors. This bearing is specifically designed for the radial loads and high rotational speeds of automotive AC compressors, where consistent performance directly impacts system efficiency.
This non-aligning radial bearing excels in confined spaces like AC compressor assemblies, operating efficiently with radial loads and moderate temperatures. Its separated design allows for easier installation during maintenance, a critical advantage in automotive repair scenarios where time is valuable. The open seal configuration accommodates various lubrication methods, ensuring compatibility with standard compressor maintenance protocols.
The NJ304EM’s precision rating options (from P0 to P2) allow matching to specific compressor tolerance requirements—higher precision grades reduce vibration and noise in luxury vehicle applications. Constructed from bearing steel and chrome steel, it offers superior hardness and wear resistance compared to generic alternatives. The choice of iron, brass, or nylon cages lets you optimize for cost, temperature resistance, or reduced weight, while the 20x52x15mm dimensions ensure direct interchangeability with most OEM specifications.
Choosing a precision-engineered bearing like the NJ304EM reduces long-term costs by minimizing premature failures.劣质轴承的早期磨损会导致压缩机异响、制冷剂泄漏，甚至系统堵塞，维修成本可能是优质轴承的5-10倍。遵循ISO 281 fatigue life standards, this bearing’s robust construction ensures extended service intervals, lowering maintenance frequency and associated labor costs for fleet operators and repair shops alike.
Our production process adheres to ISO 9001 standards, with raw material inspections and finished product testing for dimensions, hardness, and surface quality. We provide a warranty against manufacturing defects, with clear replacement protocols. With access to both our BDL brand and international equivalents, we can supply bearings to your exact brand specifications. Our inventory system ensures most models ship within 3-10 days, minimizing equipment downtime.
Whether you need a single replacement or bulk order, provide your required quantity and destination for a prompt quote. We handle all major brands and can cross-reference part numbers to ensure compatibility. The sooner you confirm your order, the faster we can arrange shipping—avoid prolonged downtime with our ready inventory.
Q: Can you supply bearings from other international brands?
A: Yes, we support inquiries for all major brands and can source bearings according to your specified brand or model requirements.
Q: How do I confirm if the NJ304EM fits my AC compressor?
A: Provide your compressor model or existing bearing dimensions (inner diameter x outer diameter x width), and our technical team will verify compatibility.
Q: What is your warranty policy for this bearing?
A: We provide a warranty against manufacturing defects. Specific terms are outlined in our sales contract, with replacement available for confirmed quality issues.
Q: What is the minimum order quantity for the NJ304EM?
A: We accept low minimum order quantities, including single-unit purchases, to support small-scale repairs and testing.
Q: How quickly can you ship the NJ304EM bearing?
A: Stock items typically ship within 3-10 days. For large orders, lead times may vary based on production capacity.
Q: Do you offer OEM/ODM customization for bearings?
A: Yes, we support custom bearing production according to customer-provided drawings or specifications.
Ready to order or need a quote?
Send the bearing model, dimensions (d x D x B), and quantity — we’ll get back to you with pricing and lead time.
Contact us via email or inquiry form for prompt assistance.
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Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
Dedicated account managers and reliable delivery networks ensure on-time supply for enterprise clients worldwide.
Performance Metrics
35%
Failures Prevented
70%
Downtime Reduction
25+
Years Experience
24h
Quote Response
78% of large enterprises prefer suppliers offering integrated technical support and lifecycle services.
Custom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Root-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
IIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Modified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
Certified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Long-term service agreements including regular maintenance checks, replacement scheduling, and performance reporting.
Free samples available for orders over $50K
Validated against your KPIs before full production commitment.
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Our certified engineers will review your application requirements and provide a detailed quote within 24 hours.
Address
No. 377 Bansongyuan Road, Huangpu District, Shanghai, China
Free Sample Program
Orders over $50K qualify for free product samples
Test against your KPIs before full production commitment. Ask our engineers for details.
Regarding: 30bd4720du 32bd44718duk 2ts2-Df0676h Automobile AC Compressor Bearing
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