needle roller and cage assemblies K40X47X20

Needle Roller and Cage Assemblies K40X47X20 - High-Performance Solution for Industrial Applications

When your equipment demands maximum radial load capacity within minimal space constraints, needle roller and cage assemblies K40X47X20 deliver the engineering solution you need. These precision-manufactured assemblies feature a 40mm inner diameter, 47mm outer diameter, and 20mm width configuration, specifically designed for applications where space is critical but performance cannot be compromised. The K40X47X20 utilizes your shaft and housing bore surfaces directly as raceways, eliminating the need for separate rings while maintaining exceptional load-carrying capacity comparable to much larger conventional bearings.

Product Structure and Working Principle

The K40X47X20 assembly consists of precisely manufactured needle rollers retained within a guidance cage system. Unlike conventional bearings with inner and outer rings, this design directly utilizes hardened shaft and housing surfaces as raceways.

The working principle relies on the needle rollers' high length-to-diameter ratio. Multiple contact points distribute radial loads across the rolling elements. The cage maintains proper roller spacing and prevents contact between adjacent rollers during operation.

This structure provides several engineering advantages. The thin roller profile achieves maximum load capacity within a compact radial envelope. Direct raceway contact reduces overall assembly weight and rotating mass. The open design facilitates lubrication flow and heat dissipation.

Performance Characteristics

Load Capacity and Durability

The product achieve exceptional radial load ratings through optimized roller geometry. The high-carbon chromium bearing steel construction provides superior fatigue resistance under cyclic loading conditions.

Precision and Reliability

Each assembly maintains roller diameter variations within 2 micrometers, ensuring uniform load distribution. This precision prevents premature wear and extends operational life in demanding applications.

Lubrication Efficiency

The open cage design promotes effective lubricant circulation. This feature reduces operating temperatures and removes contamination, particularly important in harsh industrial environments.

Primary Applications

Automotive Transmission Systems

These assemblies excel in manual and automatic gearboxes for main shaft and idler gear support. The compact design fits within gear bores while handling heavy radial forces from helical gear arrangements.

Industrial Machinery

Workbench guide rails benefit from the low-profile design and high load capacity. Conveyor systems utilize the assemblies in drive rollers and tensioning mechanisms where space constraints are critical.

Heavy Equipment

Crushers and processing equipment employ needle roller and cage assemblies K40X47X20 in pivot points and oscillating mechanisms. The robust construction withstands shock loads and continuous operation cycles.

Agricultural Equipment

Control take-off units and exchange cases require heading that handle tall torque beneath variable stacking. The open plan permits successful defilement flushing in dusty field conditions.

Quality Assurance and Manufacturing

Our three-level quality control framework guarantees reliable execution. Crude fabric assessment confirms steel composition and warm treatment viability. In-process review screens dimensional exactness all through manufacturing.

Finished item assessment incorporates vibration testing and stack confirmation. Each gathering experiences attractive molecule review to identify potential push concentrations. Surface harshness estimations guarantee ideal oil film formation.

The fabricating handle joins accuracy pounding innovation for ideal roller geometry. Uncommon warm treatment forms accomplish uniform hardness dispersion. Quality control keeps up over 99.9% capability rates for transported products.

Installation and Maintenance Considerations

Proper establishment requires solidified shaft and lodging surfaces with fitting surface wrap up. Suggested surface hardness surpasses 58 HRC with surface harshness underneath 0.4 micrometers.

Lubrication choice depends on working conditions. High-speed applications advantage from low-viscosity oils, whereas heavy-load conditions require EP added substances. Normal oil interims avoid untimely wear.

Customization and Technical Support

We provide comprehensive engineering support for non-standard needle roller and cage assemblies K40X47X20 applications. Our technical team can modify cage materials, roller specifications, and dimensional tolerances to meet specific requirements.

Sample services are available for application testing and validation. Our engineers provide installation guidance and troubleshooting support throughout the equipment lifecycle.

For technical inquiries or custom solutions, contact our engineering team at auto@lyautobearing.com. We deliver standard orders within 7 working days and provide expedited service for urgent requirements.