SKF NK42/30 NK43/20 Needle Roller Bearings
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SKF
Needle Bearing
ISO 9001
TS 16949
Genuine SKF
50+ Countries
24h Response
-- SKF Authorized Engineering Partner
SKF Needle Bearings NA6903 NA6904 NA6905 High Quality
Product Introduction
BDL Needle Roller Bearings, including models NA6903, NA6904, NA6905, are radial bearings made of high-quality bearing steel. They feature a closed type design without inner and outer rings, suitable for various applications requiring reliable performance. Available with precision ratings P0-P2 and clearances C0/C3/C4, lubricated by grease or oil.
Product Parameters
| Model NO. | NA6903 |
| Specification | 17*30*23 mm |
| Material | Bearing Steel |
| Style | Without Outer Ring, Without Inner Ring |
| Delivery Time | 3-7days |
Technical Specifications
- Product Name
- SKF Needle Bearings NA6903 NA6904 NA6905 High Quality
- Category
- Needle Bearing
- Quality Standard
- ISO 9001 / TS 16949
- Lead Time
- 8-12 Weeks Custom
- Minimum Order
- Negotiable
15+ Certified Engineers On-Call
Free application analysis · Failure diagnosis · Custom modification guidance. Response within 24 hours.
BDL Needle Roller Bearings: High-Performance Solutions for Heavy-Duty Truck Applications
Engineered for reliability in truck transmissions, axles, and powertrain systems, BDL Needle Roller Bearings deliver exceptional load capacity and durability. With precision manufacturing and robust bearing steel construction, these bearings ensure smooth operation even under extreme conditions, reducing maintenance costs and downtime for your fleet.
Core Specifications
| Parameter | Details |
|---|---|
| Model | NA6903, NA6904, NA6905 |
| Dimensions | 17×30×23 mm (NA6903) |
| Material | High-Grade Bearing Steel |
| Load Type | Radial Bearing |
| Style | Without Inner/Outer Ring |
| Precision Rating | P0, P6, P5, P4, P2 |
| Clearance | C0, C3, C4 |
| Lubrication | Grease or Oil Compatible |
| Sealing | Closed Type |
| Origin | China (ISO Certified Production) |
Key Performance Advantages
- High Radial Load Capacity: Optimized needle roller design handles heavy loads in truck gearboxes and differential systems.
- Compact Design: Space-saving structure ideal for tight engine compartments and transmission assemblies.
- Long Service Life: Heat-treated bearing steel resists wear and fatigue, extending component lifespan.
- Precision Engineering: Tight tolerances (P2-P0) ensure minimal vibration and noise during operation.
Applications in Truck Systems
Perfect for commercial trucks, trailers, and heavy-duty vehicles:
– Manual and automatic transmissions
– Drive axles and wheel hubs
– Power take-off (PTO) units
– Steering systems and suspension components
Quality Assurance
Every BDL bearing undergoes strict quality control, including:
– Material certification and hardness testing
– Dimensional accuracy inspection
– Rotational performance validation
– Compliance with ISO 9001 standards
Why Choose BDL Over Competitors?
Unlike generic bearings, BDL products offer:
– OEM/ODM customization for specific truck models
– Faster delivery (3-7 days) to minimize production delays
– Superior clearance options (C0/C3/C4) for diverse operating conditions
– Cost-effective pricing without compromising performance
Frequently Asked Questions
Q: What lubrication is recommended?
A: Both grease and oil are suitable; consult your truck’s maintenance manual for viscosity requirements.
Q: Can these bearings replace original equipment parts?
A: Yes, BDL bearings meet or exceed OE specifications for most truck brands.
Q: What precision rating should I choose?
A: P0 for standard applications, P5/P4 for high-speed or precision systems.
Get Your Custom Quote Today
Optimize your truck fleet’s performance with BDL Needle Roller Bearings. Contact us with your model requirements, and our engineering team will provide a tailored solution within 24 hours.
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01
Authorized SKF Engineering Partner
Official partner since 1998 with direct access to SKF technical resources, genuine products, and engineering expertise.
02
15+ Certified Engineers On-Staff
In-house team provides application design, failure analysis, and predictive maintenance -- reducing bearing failures by 35%.
03
ISO 9001 & TS 16949 Certified QC
Every product undergoes rigorous pre-shipment inspection with full documentation for traceability and compliance.
04
Global Logistics to 50+ Countries
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.
Application Design
EngineeringCustom bearing selection and system design based on your specific load conditions, speeds, temperatures, and environmental factors.
Failure Analysis
DiagnosticsRoot-cause investigation of bearing failures using metallurgical testing, vibration analysis, and operating data review.
Predictive Maintenance
IIoTIIoT-enabled monitoring with smart sensor bearings for real-time vibration, temperature, and RPM tracking.
Custom Modification
CustomModified bearings with special coatings, seals, tolerances, or materials. Lead time 8-12 weeks from official channels.
On-Site Installation
SupportCertified engineers available for on-site installation support, alignment checks, and commissioning assistance worldwide.
Lifecycle Support
LifecycleLong-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.
-- Get In Touch
Request a Technical Consultation & Quote
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.
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