Ad
Runout Tolerance Spec Table
Runout Tolerance KS Specifications — 2 sizes
KS A ISO 1101
Tolerances specifying runout (circular and total) during shaft rotation, used for dynamic precision control of rotating parts.
Practical Notes
- Circular runout (single section) differs from total runout (entire surface). Total is stricter — specify for precision rotating parts.
- A practical tolerance verifiable with a dial gauge after assembly. Specifying inspection method on drawings prevents disputes.
Selection Guide
Controls surface variation during shaft rotation. Circular runout (single section) vs total runout (entire surface) — total is stricter. Manages dynamic precision of motor shafts, gear tip circles, brake discs. Practical tolerance verifiable with dial gauge after assembly.
KSRunout Tolerance
2 sizes| Name | Type | Symbol | Datum | Definition | Application |
|---|---|---|---|---|---|
| Circular Runout | Runout Tolerance | ↗ | Required | Shaft 1 Surface | Shaft Surface, Surface, Bearing |
| Total Runout | Runout Tolerance | ↗↗ | Required | Shaft Surface | PrecisionShaft, , Surface |
Key Features
- Controls surface variation during one revolution about datum axis; verifiable after assembly
- Circular runout (single cross-section) vs total runout (entire surface); total runout is stricter
- Practical tolerance comprehensively managing rotary imbalance, eccentricity, and shaft deflection
Key Applications
Motor shaft runout, gear tip circle runout, flywheel face runout, chuck mounting face, brake discs
FAQ
Difference between circular and total runout?
Circular runout is measured at a single cross-section during one revolution. Total runout is measured across the full length — stricter. Specify total for precision rotating parts.