Gears, springs, bearings, cams, and linkages — from fundamentals to professional practice. Interactively calculate power transmission, strength, and service life.
— simulatorsQ: What gear standards are used in the gear stress calculator?
A: The simulator follows AGMA 2001 for bending stress (Lewis equation with geometry factors) and contact stress (Hertz pressure). Input module, tooth count, face width, and material to get bending and contact safety factors instantly.
Q: How is bolt preload torque calculated?
A: T = K × F × d, where K is the nut factor (0.15–0.20 for lubricated steel), F is the target preload, and d is the nominal diameter. Typical preload is 70–80% of proof load to allow for relaxation.
Q: What is the difference between a cam follower and a flat-faced follower?
A: A roller follower distributes load over a line contact (lower pressure) and can follow concave cam profiles. A flat-faced follower requires a convex cam, generates higher sliding velocity, but is simpler to manufacture.
Q: How does flywheel sizing work?
A: The required moment of inertia is I = ΔE / (ω_mean × δ), where ΔE is the cyclic energy fluctuation, ω_mean is mean angular speed, and δ is the coefficient of fluctuation of speed (typically 0.01–0.05 for precision machinery).