A2 Stainless Steel Housed (Pillow Block) Bearing — ISO / DIN (Series 123) pairs the standard ISO / DIN with a A2 Stainless Steel base material. The sections below cover why engineers select this grade for housed (pillow block) bearing — iso / din (series 123), its corrosion and temperature behavior, and the sizes available.
Why Choose A2 Stainless Steel for Housed (Pillow Block) Bearing — ISO / DIN (Series 123)
The most common stainless grade for indoor and general outdoor fasteners. For housed (pillow block) bearing — iso / din (series 123), 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 Housed (Pillow Block) Bearing — ISO / DIN (Series 123) in indoor and general outdoor service. In chloride-bearing environments (marine air, road salt, swimming pools) consider stepping up to A4 (316).
Comparable Grades
For Housed (Pillow Block) Bearing — ISO / DIN (Series 123), the alternative stainless grade is A4 (316). A2 (304) suits general indoor and outdoor service; A4 (316) adds molybdenum for marine and chloride environments. Where higher strength matters more than corrosion, switch to plated alloy-steel class 8.8 or 10.9.
Sizes of Housed (Pillow Block) Bearing — ISO / DIN (Series 123) Available in A2 Stainless Steel
| Shaft size (mm) | Housing length (mm) | Total height (mm) | Bolt center distance (mm) | Bolt size | Reference standard |
|---|---|---|---|---|---|
| 15 | 90 | 38 | 65 | M10 | ISO 113 / GB/T 7813 |
| 20 | 108 | 42 | 75 | M10 | ISO 113 / GB/T 7813 |
| 25 | 127 | 47 | 90 | M12 | ISO 113 / GB/T 7813 |
| 30 | 140 | 55 | 100 | M12 | ISO 113 / GB/T 7813 |
| 35 | 162 | 62 | 115 | M14 | ISO 113 / GB/T 7813 |
| 40 | 175 | 68 | 130 | M14 | ISO 113 / GB/T 7813 |
| 50 | 205 | 75 | 150 | M16 | ISO 113 / GB/T 7813 |
| 60 | 250 | 85 | 180 | M16 | ISO 113 / GB/T 7813 |
| 80 | 300 | 105 | 220 | M20 | ISO 113 / GB/T 7813 |