SKF HK/Bk K80X86X30 Drawn Cup Needle Roller Bearings
View Details
SKF
Needle Bearing
ISO 9001
TS 16949
Genuine SKF
50+ Countries
24h Response
-- SKF Authorized Engineering Partner
SKF RNA4840 RNA4844 RNA4848 Needle Roller Bearings
Product Introduction
BDL Needle Roller Bearings, including models RNA4840, RNA4844, RNA4848, are radial bearings made of bearing steel. They feature a closed type without inner and outer rings, suitable for grease or oil lubrication, with delivery in 3-7 days.
Product Parameters
| Model NO. | RNA4840 |
| Style | Without Outer Ring, Without Inner Ring |
| Material | Bearing Steel |
| Lubrication | Grease or Oil |
| Delivery Time | 3-7days |
Technical Specifications
- Product Name
- SKF RNA4840 RNA4844 RNA4848 Needle Roller Bearings
- 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 RNA4840 Needle Roller Bearings: High-Performance Solutions for Truck Axles & Heavy-Duty Applications
Engineered for demanding truck operations, BDL RNA4840 needle roller bearings deliver exceptional radial load capacity and durability. Crafted from premium bearing steel, these closed-type bearings feature a lightweight, compact design without inner/outer rings, making them ideal for tight axle assemblies and transmission systems in commercial vehicles. With precision ratings up to P2 and flexible lubrication options (grease/oil), they ensure smooth performance even under extreme loads.
Core Specifications
| Model | RNA4840 |
| Dimensions | 220×250×50 mm |
| Load Type | Radial Bearing |
| Style | Without Inner/Outer Ring |
| Material | Bearing Steel |
| Precision Rating | P0/P6/P5/P4/P2 |
| Clearance | C0/C3/C4 |
| Lubrication | Grease or Oil |
| Origin | China (HS Code: 8482102000) |
| Delivery Time | 3-7 Days |
Key Benefits for Truck Manufacturers
- Enhanced Durability: Bearing steel construction resists wear in high-mileage truck applications
- Space-Saving Design: No inner/outer rings reduce weight by 15% vs. conventional bearings
- Precision Performance: P2 class accuracy minimizes vibration in drive axles
- Flexible Compatibility: Works with standard truck lubrication systems (grease/oil)
- Quick Delivery: 3-7 day lead time supports just-in-time production schedules
Applications
Perfect for heavy-duty truck components including: axle hubs, transmission gearboxes, steering linkages, and differential assemblies. Ideal for commercial vehicles, trailers, and construction machinery operating under high radial loads.
Quality Assurance
BDL bearings undergo strict quality control: 100% dimensional inspection, dynamic load testing, and material certification. Backed by OEM/ODM service capabilities and a 1,000,000-unit monthly production capacity to meet large orders.
Differentiation
Unlike competitors, BDL RNA4840 bearings offer: multi-precision options (P0-P2), customizable clearance (C0/C3/C4), and faster delivery. The no-ring design reduces assembly time by 20% for truck manufacturers.
FAQ
Q: What lubrication is recommended?
A: Both grease and oil are suitable; consult your maintenance manual for viscosity requirements.
Q: Can these bearings handle axial loads?
A: Designed primarily for radial loads; contact us for combined load solutions.
Q: Are samples available?
A: Yes, contact our team to request sample testing.
Ready to optimize your truck’s performance? Contact us today for bulk pricing and technical specifications tailored to your manufacturing needs.
Wind Power
Main shaft, gearbox, and generator bearings for onshore and offshore wind turbines. Engineered for 20+ year service life.
Mining & Heavy Industry
Crushers, conveyors, and processing equipment bearings designed to withstand shock loads and contaminated environments.
Steel & Metallurgy
Rolling mill and continuous casting bearings rated for extreme temperatures, heavy loads, and aggressive lubricants.
Automotive & EV
Hub units, transmission, and electric motor bearings meeting TS 16949 requirements for passenger and commercial vehicles.
Precision Machinery
Machine tool spindle and robotics bearings with P4/P2 accuracy class for ultra-precise positioning and minimal vibration.
General Industrial
Pumps, fans, compressors, and conveyor systems across all manufacturing sectors requiring reliable, cost-effective bearing solutions.
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.
Product Inquiry Form
Regarding: SKF RNA4840 RNA4844 RNA4848 Needle Roller Bearings
-- Related Products
More Needle Bearing Products
SKF Authorized Engineering Partner
Need technical support or a custom solution?
15+ certified engineers ready to help. Response within 24 hours.