Combined Radial-Axial Bearings

Unlike ordinary deep groove bearings, our combined structure integrates radial and axial load performance into one optimized unit.

Precision Raceway Processing

The inner and outer raceways are processed through automatic grinding production lines with strict tolerance control. This helps reduce:

· Abnormal vibration

· Uneven load distribution

· Premature surface fatigue

For customers using high-speed rotating equipment, this directly improves running smoothness and bearing consistency.

Bearing Steel and Heat Treatment

We typically use high-carbon chromium bearing steel such as GCr15.

The rings and rolling elements go through:

1. Controlled heat treatment

2. Hardness stabilization

3. Precision finishing

The final hardness generally reaches HRC60-64 depending on application requirements.

This process improves:

· Wear resistance

· Contact fatigue life

· Dimensional stability during long operating cycles

Suitable for Demanding Working Environments

Our experience exporting bearings to industrial users in Southeast Asia, South America, and Europe has shown that combined radial-axial structures perform especially well in:

· Continuous start-stop systems

· Medium to high-speed rotation

· Equipment exposed to moderate vibration

· Compact mechanical assemblies with limited installation space

For example, several automation equipment customers use BMT Combined Radial-Axial Bearings in indexing tables and servo-driven assemblies where positioning accuracy is important.

In these applications, stable axial guidance matters as much as rotational performance.

Production and Quality Control Inside Our Factory

BMT Bearings operates automatic grinding and assembly lines with annual production capacity exceeding 100 million bearing units.

For Combined Radial-Axial Bearings, every production batch goes through:

· Raceway roundness inspection

· Noise and vibration testing

· Clearance measurement

· Dimensional accuracy verification

· Grease performance evaluation when lubrication is required

We also use automatic measuring instruments to reduce human deviation during inspection.

This is especially important for customers purchasing bearings for OEM equipment, because even small dimensional inconsistencies can affect assembly accuracy.

Compared with Conventional Bearing Solutions

In practical use, many customers switch from traditional bearing combinations to integrated Combined Radial-Axial Bearings because they want:

· Easier installation

· Fewer components

· Better alignment accuracy

· Reduced maintenance frequency

A standard bearing arrangement may require separate thrust and radial bearings, increasing housing complexity.

A combined design reduces that complexity while maintaining stable load performance.

However, we usually recommend confirming:

· Rotational speed

· Load direction

· Lubrication condition

· Operating temperature

before selecting the bearing structure.

This helps avoid overdesign or insufficient load capacity.

Typical Applications

Industrial Automation Equipment

Used in robotic positioning systems, indexing tables, and automated assembly lines requiring accurate axial positioning.

Machine Tools

Applied in spindle systems and precision rotating assemblies where both radial rigidity and axial stability are necessary.

Lifting and Conveyor Systems

Suitable for equipment operating under combined dynamic loads and continuous running conditions.

Electric Motors and Pumps

Helps improve rotational stability while reducing operational vibration in compact drive systems.

OEM and Custom Manufacturing Support

We support:

· OEM bearing production

· Customized dimensions

· Non-standard bearing development

· Laser marking and private label packaging

· Bulk export orders

Non-standard bearing development has been part of our manufacturing experience since 2005, and it remains one of BMT Bearings’ core strengths today.

Our engineering team can assist customers in selecting suitable internal clearance, sealing structure, lubrication method, and material configuration according to the actual working condition.

Why Many Buyers Continue Working with BMT Bearings

Many overseas customers continue sourcing from BMT not because of aggressive pricing alone, but because stable quality reduces downtime and replacement frequency over time.

In bearing applications, consistency matters more than short-term cost savings.

We understand that industrial buyers care about:

· Reliable delivery

· Repeatable quality

· Technical communication

· Traceable production standards

That is why we continue investing in automatic production equipment, inspection systems, and long-term manufacturing control rather than only expanding volume.