Using high corrosion resistant, high hardness Silicolloy, which enables better operation under higher loads and rotational speeds when compared to AISI 304 and AISI 630 stainless steels.
Features
1. Enables operation at high-rotational speed and under high loads in corrosive environments.
2. Provides corrosion resistance equivalent to AISI 630 stainless steel.
3. Offers higher hardness than the AISI 304 or AISI 630 stainless steel.
4. Pre-packed with food-grade grease as a standard specification.
5. Hybrid type using silicon nitride (Si3N4) ceramic balls.
[Difference in properties by the material used]
| Unit | SilicolloyXVI | AISI 440C | AISI 630 | AISI 304 | |
|---|---|---|---|---|---|
| Density | g/cm3 | 7.66 | 7.8 | 7.8 | 7.93 |
| Tensile Strength | N/mm2 | 1320 | 1900-2000 | approx.1379 | 520-600 |
| Elongation | ％ | ― | ― | approx.14 | 45-60 |
| Elastic Modulus | N/m2 | 202000 | 203000 | 196000 | 193000 |
| Hardness HRC |
HV | 645 | 700 | 434 | 170 | 57.6 | 60.1 | 44.0 | 3.0 |
| Magnetism | ― | Magnetic | Magnetic | Magnetic | Non magnetic * |
* AISI 304 stainless steel may be magnetized depending on manufacturing process.
Product Specifications
| Product Specifications | |
|---|---|
| Inner and Outer Rings | SilicolloyXVI |
| Balls | Silicon nitride ceramics (Si3N4) |
| Retainer | AISI 304 |
| Shield | AISI 304 |
| Seal*1 | Nitrile rubber |
| Lubricant*2 | Water-resistant and food-grade grease |
| ISO Tolerance Class | Normal |
The following special specifications are also available.
*1 Fluorine rubber seal
*2 Chemical-resistant grease
* Chemical-resistant grease available as an option.
Applications
Food machinery, cleaning equipment, LCD and semiconductor manufacturing equipment, film transfer equipment, metal plating equipment, other equipment used in environments where the bearings come into contact with acid or alkaline chemicals.
Precautions
