ESM 138
Our Most Popular Chuck The ESM 138 Unilock chuck is easily mounted in custom fixture designs, and its versatility makes it our best seller. Features: • Mid-sized diameter fits most applications • Top side mounting for ease of integration • Choose from air connections at bottom or side • Optional timing notch in face of chuck • Stainless steel body option (ESM 138-SS)
Available with Notches
Recommended Bolt Sizes
Clamping Force (lbs)
Air Connection
Chuck Model
Catalog Number
Notch (Width x Qty)
Weight (lbs)
M10 M12 M16 M20† M24† Spring Only Turbo Assist
Port Size Flange
15.270.100 15.270.107 15.276.100
—
ESM 138
990-1,320 3,300-3,520*
9.9
1/8
14 H7 x 1
3 3 3 3 3
3
ESM 138-SS
—
• Screws, screw covers and o-ring included * Sealed pocket required for turbo assist † Optional
AIR FITTINGS
ACCESSORIES
REPAIR COMPONENTS
PG. 144
PG. 148
PG. 149
12
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