Simple Shaft Design
Input Data
Shaft Dimensions:
Enter a diameter to see matching plain bearing options
| Property | Base Value | Treated Value |
|---|---|---|
| Tensile Strength (MPa) | - | - |
| Yield Strength (MPa) | - | - |
| Shear Strength (MPa) | - | - |
| Surface Hardness | - | - |
| Treatment Operation | - | |
In shaft design, preventing plastic deformation is key. Therefore, design limits are based on yield strength—the elastic-to-plastic threshold—rather than the higher tensile strength, ensuring safety and durability.
1.1191 (C45) - SAE 1045 - Most popular for general-purpose shafts due to its balance of strength, machinability, and cost.
1.1210 (C50) - SAE 1050 - A higher carbon steel than 1045, offering increased strength and hardness, suitable for applications requiring higher wear resistance.
1.7225 (42CrMo4) - SAE 4140 - Excellent for high-stress shafts, offering superior strength and toughness.
1.6582 (34CrNiMo6) - SAE 4340 - Used for heavy-duty shafts in demanding applications.
1.6523 (21NiCrMo2) - SAE 8620 - Ideal for shafts requiring surface hardening (e.g., carburizing) for wear resistance.
1.0037 (S235JR) - A structural steel used for low-stress shafts where cost is a priority.
1.0577 (S355J2) - Another structural steel, slightly stronger than S235JR, used for moderate-stress shafts.
1.4301 (X5CrNi18-10) - SAE 304 Stainless Steel - Used for shafts in corrosive environments with moderate strength requirements.
1.4401 (X5CrNiMo17-12-2) - SAE 316 Stainless Steel - Similar to 304 but with better corrosion resistance.
1.3505 (100Cr6) - SAE 52100 - Used for high-wear applications like bearings or precision shafts.
3.4365 (AlZnMgCu1.5) - AA 7075 Aluminum - Used for lightweight shafts in low-load applications.
3.7164 (Ti-6Al-4V) - Grade 5 (Titanium Alloy) - Used in high-performance or aerospace applications where weight and corrosion resistance are critical.
1.4542 (X5CrNiCuNb16-4) - SAE Type 630 (17-4PH) - A stainless steel used in corrosive environments with moderate strength requirements.
1.2379 (X153CrMoV12) - D2 Tool Steel - Rarely used for shafts unless extreme wear resistance is required.
Designing Shafts with DIN Standards
A shaft is a rotating or stationary machine element that carries components such as gears, pulleys, bearings, and couplings. Sizing it correctly means more than picking a diameter: the shaft must be checked against the loads it will carry, the way it is axially secured, and the material strength available. This tool brings the three common design checks together — DIN 471 retaining ring grooves, DIN 15058 axle stop plates, and material-based shear limits.
DIN 471 Retaining Rings
Shallow-groove circlips are the most economical way to locate bearings and components axially on a shaft. The groove machinery is critical: the groove diameter d2, width m, and minimum shoulder n must match the ring used. Selecting a non-standard shaft diameter forces a larger or undersized groove, so the calculator snaps the entered diameter to the nearest standard size and shows which circlip designation to order.
Load Capacity Based on Yield Strength
Shaft design avoids plastic deformation, so the design limit is the material's yield strength rather than its tensile strength. Using the von Mises criterion, the allowable shear stress is σ_yield / (FOS × √3). From that value the tool derives the maximum shear load the shaft can carry and — for hydraulic cylinder applications — the minimum piston bore required at a given working pressure.
Material Selection
The built-in material database covers the common shaft steels (C45, C50, 42CrMo4, 34CrNiMo6, 21NiCrMo2), structural steels (S235JR, S355J2), stainless grades (304, 316, 17-4PH), tool steel (D2), aluminum (7075), and titanium (Ti-6Al-4V) with base and treated mechanical properties. Choose the alloy, apply your operating pressure and factor of safety, and read the resulting limits plus the recommended minimum bore for the coupled cylinder.
Frequently Asked Questions
What does Simple Shaft Design do?
Shaft design calculator covering DIN 471 circlip groove dimensions and DIN 15058 shaft-hub fits.
How do I use Simple Shaft Design?
Enter shaft diameter, material, and loading type. The tool calculates DIN 471 retaining ring groove dimensions, bearing fit per DIN 15058, and material stress limits.
Is Simple Shaft Design free to use?
Yes. This DIN 471 and DIN 15058 shaft design calculator runs in the browser and is free to use.