The R 12 Bearing, SKU: R12-ECO, is a miniature deep groove ball bearing designed to meet the demands of various industrial applications. With dimensions of 19.05×41.27×7.94 mm, this bearing is engineered to deliver precise performance in compact assemblies. Its typical use includes high-speed machinery and equipment where space constraints and efficiency are critical. This bearing is a part of the Micro category, which is known for its small size and dependable operation in intricate mechanical systems.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 19.05 mm |
| Outer diameter (D) | 41.27 mm |
| Width (B) | 7.94 mm |
| Basic dynamic load rating (C) | 9.6 kN |
| Basic static load rating (C0) | 4.8 kN |
| Limiting speed | 20,000 rpm |
| Reference speed | 15,000 rpm |
| Ring material | Chrome steel 100Cr6 |
| Shielding / Sealing | Open |
| Factory lubrication | Lithium grease |
Technical advantages
Designed to deliver optimal performance in compact and high-speed applications, the R 12 Bearing offers several technical advantages:
- High speed capability with a limiting speed of up to 20,000 rpm.
- Robust chrome steel construction ensures rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance suitable for applications without preload.
- Factory lubricated with lithium grease for reduced friction and extended service intervals.
- Open design facilitates easy maintenance in environments where contamination is controlled.
Typical applications
The R 12 Bearing is suitable for a range of industries and applications due to its precision and durability:
- Measurement and laboratory instruments such as optical encoders and electronic micrometers.
- Aeromodelling and drones, particularly in brushless motors and planetary gearboxes.
- Dental equipment including turbines and contra-angles.
- Precision robotics, used in harmonic drive reducers and cardan joints.
- Medical devices like peristaltic pumps and lung ventilators.
Availability and ordering
Eurobearing.eu is your dedicated B2B supplier for mechanical industrial components, offering fast availability of the R12-ECO bearing. For bulk quantities, request a quote to benefit from competitive pricing. Add the R 12 Bearing to your cart today or contact us for more information on this product.

