The 618/7 2Z Bearing 7X14X3.5 is a precision-engineered miniature deep groove ball bearing, widely used in various industrial applications requiring compact and efficient rotational components. Its dimensions, with a bore diameter of 7 mm, outer diameter of 14 mm, and a width of 3.5 mm, make it suitable for high-speed and low-friction environments. This bearing is a part of the deep groove ball bearings MICRO category, offering optimal performance in small-scale mechanical systems.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 7 mm |
| Outer diameter (D) | 14 mm |
| Width (B) | 3.5 mm |
| Basic dynamic load rating (C) | 1.28 kN |
| Basic static load rating (C0) | 0.48 kN |
| Limiting speed | 60,000 rpm |
| Shielding | ZZ |
| Ring material | Chrome steel 100Cr6 |
| Factory lubrication | Lithium grease |
| Precision class | P0 / ABEC-1 |
| Internal clearance | CN |
Technical advantages
The 618/7 2Z Bearing 7X14X3.5 offers several technical advantages for demanding applications:
- Operates continuously up to 60,000 rpm due to the optimized ball geometry.
- Constructed from heat-treated 100Cr6 chrome steel, ensuring a rolling-contact fatigue life exceeding 107 cycles.
- Standard CN radial clearance, providing excellent fit for assemblies without requiring preload adjustments.
- ZZ shielding provides reliable protection against dust and small particle ingress.
- Factory-lubricated with lithium grease for optimal performance in varying temperature conditions.
Typical applications
This bearing is ideally suited for a variety of specific industrial sectors and machinery, including:
- Measurement and laboratory instruments (optical encoders, electronic micrometers)
- Aeromodelling and drones (brushless motors, planetary gearboxes)
- Dental equipment (turbines, contra-angles, micromotors)
- Precision robotics (harmonic drive reducers, cardan joints)
- Medical devices (peristaltic pumps, lung ventilators, microscopes)
Availability and ordering
Eurobearing.eu, as a specialized B2B supplier, ensures fast availability of the 618/7 2Z Bearing 7X14X3.5, SKU: 61872Z-ECO. For bulk orders or specific inquiries, businesses can request a quote. Add this product to your cart or contact us for further assistance.

