Accuracy along the width of the gear tooth. 3. The Tolerance Classification System
JIS B 1702-1 is widely used in various industries, including: jis b 1702-1 pdf
Crucially, JIS B 1702-1 is technically identical to ISO 1328-1:2013 (and previously to ISO 1328-1:1995 for older revisions). This means that JIS accuracy grades correspond directly to ISO grades. This harmonization ensures global interchangeability of gear inspection data. Accuracy along the width of the gear tooth
: Deviations of the actual tooth profile from the theoretical involute shape. This means that JIS accuracy grades correspond directly
The difference between the actual pitch and the theoretical pitch. Total Cumulative Pitch Deviation ( cap F sub p The maximum deviation across all teeth in the gear. Total Profile Deviation ( cap F sub alpha The total error in the shape of the tooth profile. Total Helix Deviation ( cap F sub beta
Measures how much the actual tooth profile deviates from the ideal involute curve. Fβcap F sub beta
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