Vitesco EV Bearing Case Study – Customized EV Motor Bearing Solution for Electric Drive System EMR4 – 6006 & 6206 Bearings

With the rapid development of electric vehicles, electric drive systems require bearings with higher rotational speed capability, lower friction torque, reduced vibration, and extended service life.

MTWB developed customized EV motor bearing solutions for electric drive systems including the EMR4 platform, utilizing high-quality deep groove ball bearings such as 6006 and 6206 series.

The optimized bearing design provides stable performance under high-speed rotation, temperature variation, and continuous operating conditions.

Electric Drive System EMR4

Applied to 20+ vehicle models

The MR4 is highly integrated, modular and scalable, with a power range covering 80kilowatts to 230 kilowatts.

At the same power level, the fourth-generation electric shaft drive system has reduced by 25% compared to the previous generation.

Has been used in the PSA electric vehicle project.

Product design features, max. operating speed

• OEM： Vitesco

• Application：Electric Drive System

• Max.Speed：16000 RPM

MTWB 6006 Deep Groove Ball Bearing Specification

MTWB 6206 Deep Groove Ball Bearing Specification

Features of Customized 6006 & 6206 Bearings for Electric Drive System EMR4

• Special channel curvature design enhances rotational accuracy.

• PA46 high-performance polyamide cage: High rigidity & high heat resistance (<250℃):

1. Reduces deformation of the cage during high-speed rotation.

2. Torque resistance is reduced by 50%.

3. Extremely high wear resistance hence longer life span.

4. Lighter weight, lower noise (V4 group or above).

• Internal size adjustment improves lubrication efficiency and rotational accuracy.

• Selects high-temperature resistant, high-speed silent grease.

• Selects high-grade bearing steel from Jiangyin Xingcheng Special Steel.

Application Challenge

Bearing Requirements for EV Electric Drive Systems

EV drive motors create several challenges:

• High rotational speed

• Frequent acceleration and deceleration

• Temperature fluctuation

• Low noise requirements

• Limited installation space

• Long service life expectation

  
  

MTWB EV bearings can be customized with:

✓ P6 precision grade or higher
✓ Low-noise operation
✓ Special high-temperature grease
✓ Optimized internal clearance
✓ Customized cage design
✓ OEM dimensional requirements

Common question:

What is an EV motor bearing?

An EV motor bearing is a precision bearing designed for electric vehicle motors and drive systems, requiring high speed capability, low friction, low noise, and long service life.

Why are 6006 and 6206 bearings used in electric drive systems?

6006 and 6206 deep groove ball bearings provide excellent radial load capacity, high-speed performance, compact structure, and reliable operation, making them suitable for electric motor applications.

Can MTWB customize EV bearings?

Yes. MTWB provides customized EV bearing solutions including clearance, grease, cage design, sealing structure, precision grade, and OEM specifications.

Looking for a reliable EV bearing supplier for Electric Drive System EMR4 ? MTWB provides customized bearing solutions for electric vehicles, including OEM replacement bearings, special grease bearings and high-speed drivetrain bearings.

Contact MTWB today to discuss your related EV Bearing for EMR4 requirements and receive a professional bearing solution.

About MTWB

MTWB (Mighty Way Industrial Limited) is a professional customized EV 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.