For thrust bearing in A2 Stainless Steel, the controlling selection factors are corrosion exposure, strength requirement and service temperature. The grade data for A2 Stainless Steel (A2-70 (304)) is summarized below together with every size supplied.
Why Choose A2 Stainless Steel for Thrust Bearing — ISO / DIN (Series 110)
The most common stainless grade for indoor and general outdoor fasteners. For thrust bearing — iso / din (series 110), this matters when good general corrosion resistance is the primary requirement.
Mechanical & Physical Properties
| Grade designation | A2-70 (304) |
|---|---|
| Magnetic response | Largely non-magnetic |
| Service temperature | approx. -200 °C to +400 °C |
| Corrosion characteristic | Good general corrosion resistance |
Corrosion Behavior in Service
A2 (304) gives excellent atmospheric and most-water corrosion resistance and is the most common stainless for Thrust Bearing — ISO / DIN (Series 110) in indoor and general outdoor service. In chloride-bearing environments (marine air, road salt, swimming pools) consider stepping up to A4 (316).
Galvanic & Galling Considerations
Two important notes for stainless thrust bearing — iso / din (series 110): (1) stainless can gall on stainless threads under load — use a thread lubricant or anti-galling compound, especially for M6 and below; (2) when joined to aluminum or galvanized steel, stainless can drive galvanic corrosion of the less-noble metal in wet service — isolate with a coating or sleeve where appropriate.
Sizes of Thrust Bearing — ISO / DIN (Series 110) Available in A2 Stainless Steel
| Bore d (mm) | Outer diameter D (mm) | Total height H (mm) | Dynamic axial load Ca (kN) | Limit speed (rpm) | Reference standard |
|---|---|---|---|---|---|
| 10 | 24 | 9 | 9.65 | 4000 | ISO 104 / GB/T 301 |
| 15 | 28 | 9 | 11.5 | 3800 | ISO 104 / GB/T 301 |
| 20 | 35 | 10 | 17.0 | 3200 | ISO 104 / GB/T 301 |
| 25 | 42 | 11 | 22.0 | 2800 | ISO 104 / GB/T 301 |
| 30 | 47 | 11 | 27.0 | 2400 | ISO 104 / GB/T 301 |
| 40 | 60 | 13 | 42.5 | 2000 | ISO 104 / GB/T 301 |
| 50 | 70 | 14 | 52.0 | 1700 | ISO 104 / GB/T 301 |
| 60 | 85 | 17 | 70.0 | 1500 | ISO 104 / GB/T 301 |
| 80 | 105 | 19 | 93.0 | 1200 | ISO 104 / GB/T 301 |