When Thrust Bearing — ISO / DIN (Series 110) are required in Grade 8.8 Steel, the alternative grades and the trade-offs between them matter as much as the dimensions. This page covers both, plus mechanical and corrosion data.
Why Choose Grade 8.8 Steel for Thrust Bearing — ISO / DIN (Series 110)
The workhorse medium-carbon alloy grade for structural joints. For thrust bearing — iso / din (series 110), this matters when requires plating (zinc) for corrosion protection is the primary requirement.
Mechanical & Physical Properties
| Grade designation | class 8.8 |
|---|---|
| Magnetic response | Magnetic |
| Service temperature | up to approx. +300 °C |
| Corrosion characteristic | Requires plating (zinc) for corrosion protection |
Galvanic & Galling Considerations
For thrust bearing — iso / din (series 110) in steel, the dominant compatibility issue is hydrogen embrittlement at high property classes (10.9 and above) when electroplated. Plating must be followed by an appropriate baking treatment, or a non-electroplated finish (mechanical zinc, zinc flake) should be substituted.
Comparable Grades
For Thrust Bearing — ISO / DIN (Series 110), class 10.9 or 12.9 is the comparable strength step. Move up when the joint preload approaches the proof load of the current class; move down when the joint is over-specified. For corrosion-critical service, switch to stainless A2 or A4.
Sizes of Thrust Bearing — ISO / DIN (Series 110) Available in Grade 8.8 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 |