In the heavy-duty truck industry, reliable drivetrain and separation system performance is critical to ensure vehicle safety, operating efficiency, and long service life. For Shaanxi Heavy Duty Automobile, MTWB developed a customized truck separation bearing solution in 2023 to address the demanding requirements of high-load operation, frequent engagement cycles, and harsh working environments. By optimizing bearing structure, material selection, and manufacturing precision, MTWB truck separation bearings provide stable performance, reduced maintenance requirements, and a cost-effective alternative to international brand bearing solutions for heavy-duty commercial vehicles.
01 Introduction to Separable Bearings
02 Introduction of Product Design Features
03 R&D improvement process
04 Test Report
The separable bearing is the core component of the clutch system in heavy-duty trucks.
Compact structure, suitable for clutch systems with limited space, suitable for heavy-duty trucks.
Bearing body: high-precision spherical bearing, ensuring low friction and high-speed operation.
Sealed structure: dustproof, waterproof, and oil leakage resistantdesign, extending service life.
Adopting double-layer sealing, the sealing plate uses F rubber,and the grease is selected from Krupp high-temperature grease to enhance high temperature resistance and wear resistance.
The opposite component here is formed by grinding and processing.
Advantages: High precision, small size tolerance range.
Use Krupp B L P 7 2-1 2 bearing grease instead. High performance synthetic grease designed for
heavy-duty, high-temperature, and high-speed rolling bearings.
The existing sealing mechanism for the clutch release bearing of heavy-duty trucks is a single-layer structure with average sealing performance. After a period of use, the lubricating oil will leak, affecting
its use. Our company offers a dual sealing structure that greatly improves sealing performance and has obtained patent certification.
Before improvement, use a single-layer iron sealing ring.
After improvement, double-sided double sealing rings are used, and an additional layer of F rubber sheet sealing ring is added on top of the iron sealing ring.
Advantages: The dustproof, waterproof, and oil leakage prevention levels have been increased, mainly reducing oil leakage.
Customer Requirement:
1. Cover assembly speed: 1500 r/min
2. Separation stroke: 12mm
3. Frequency: 1Hz~2Hz
4. Test temperature: 150 ± 5 ℃
5. Standard block thickness: 10 ± 0.02mm
6. Test frequency: 2 million times.
7. Matching cover assembly: The maximum separation force of the FD430L-1601100GR-03 cover assembly is 7854.6N.
Actual Results:
1. Cover assembly speed: 1500 r/min
2. Separation stroke: 12mm
3. Frequency: 2Hz
4. Test temperature: 150 ℃
5. Standard block thickness: 10mm
6. Test frequency: 2 million times.
7. Matching cover assembly: The maximum separation force of the FD430L-1601100GR-03 cover assembly is 7854.6N.
After 2 million bench simulation life tests at 150 ℃ (The maximum temperature of the bearing is
148℃), the bearing's rotational resistance increased and the bearing did not leak oil, so it can
still be used.
Contact MTWB today to discuss your related automotive bearing requirements and receive a professional bearing solution.
MTWB (Mighty Way Industrial Limited) is a professional truck separation bearings manufacturer and OEM bearing supplier specializing in high precision miniature bearings and application-specific bearing solutions.
With advanced manufacturing capabilities, comprehensive testing systems, and engineering expertise, MTWB helps global customers develop reliable bearing solutions for demanding applications.
July 13,2026
