6203 C3 MTM Ball Bearing 17x40x12 mm

Industrial Applications

C3 Internal Clearance and High Durability

Bearing Unit for Bearing Housings

Main Description

The 6203 C3 MTM ball bearing 17x40x12 mm is a single-row deep groove ball bearing designed for reliable operation in a wide range of industrial and technical applications. Its classic deep groove design ensures low rolling resistance, smooth rotation, and stable guidance of rolling elements, making it suitable for continuous-duty operation.

The increased internal clearance C3 allows the bearing to compensate for thermal expansion during operation. This feature is especially important in applications with higher rotational speeds or elevated operating temperatures, where standard clearance bearings may be exposed to excessive internal stress. As a result, the bearing offers high durability and a longer service life under demanding conditions.

With standardized dimensions of 17x40x12 mm, the 6203 C3 bearing enables easy installation and fast replacement in commonly used mechanical designs. It is widely applied in electric motors, fans, pumps, gearboxes, production machinery, and industrial drive systems. The bearing can be used as an individual bearing unit or installed inside a bearing housing, depending on system requirements.

The deep groove geometry allows the bearing to carry radial loads as well as moderate axial loads in both directions while maintaining stable and repeatable performance. Manufactured to consistent quality standards, this ball bearing provides predictable operation and cost-effective reliability. As a product of MTM, it represents a practical solution for B2B customers seeking dependable bearings for general industrial use, maintenance, and service applications.

FAQ - Frequently Asked Questions

What does C3 mean in a ball bearing?
C3 indicates increased internal clearance, allowing safe operation at higher speeds and temperatures.

Where is the 6203 C3 ball bearing typically used?
It is commonly used in electric motors, fans, pumps, gearboxes, and industrial machinery.

Can this bearing be installed in a bearing housing?
Yes, it is compatible with standard bearing housings and bearing units.

What loads can the 6203 C3 bearing handle?
It supports radial loads and moderate axial loads in both directions.

Is the bearing ready for installation?
Yes, it is supplied ready for mounting according to standard installation practices.