Сайт Bearing Preload Calculator is a practical engineering tool designed to help determine the appropriate preload for bearing systems under different operating conditions. By entering key parameters such as bearing type, applied load, stiffness, and installation conditions, users can evaluate preload requirements for improved bearing performance. The Bearing Preload Calculator helps engineers and designers reduce bearing clearance, improve rotational accuracy and rigidity, minimize vibration, and support longer service life. It is especially useful for machine tool spindles, gearboxes, motors, precision machinery, and other high-speed or high-accuracy rotating systems. Whether you are designing a new bearing arrangement or optimizing an existing assembly, this calculator provides a convenient solution for bearing preload analysis and reliable mechanical design.
Must be > 0° and ≤ 60°
Must be > 0 mm
Auto-estimated from bore if linked
Must be > 0 mm
Must be ≥ 1
Must be > 0 mm
Must be ≥ 0 N
Must be ≥ 0 N
Must be ≥ 0 RPM
1–2 oil bath · 2–4 grease · depends on lubrication
Bearing 1 (Loaded Side)
— N
→
F_a = 0 Н
Bearing 2 (Unloaded Side)
— N
Axial Stiffness K_a
—
N/μm
Preload Friction Torque M_p
—
Н-м
Power Loss
—
В
Liftoff Margin
—
%
System Stiffness Ratio
—
vs. zero load
Preload Status
—
