Introducing materials that discuss the types of surface roughness and how to measure them.
This document is a technical material published about "surface roughness." It is an excerpt from JIS B 0601/0031 (1994).
Morimoto Precision Shaft Co., Ltd. handles shafts, ball screws, sliding screws, 30-degree trapezoidal screws, and limit gauges for screws.
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[Contents]
■ Types of surface roughness
■ Typical methods for determining surface roughness
- Arithmetic average roughness (Ra), maximum height (Ry), ten-point average roughness (Rz)
■ Relationship between arithmetic average roughness (Ra) and conventional notation
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