Okamoto Model Linear 618 Hand Feed Surface Grinder

The Okamoto Linear 618 is a 6" x 18" precision manual surface grinder featuring smooth linear ball bearing guideways for both table and saddle movement, a 2 HP spindle, and a 0.0001" graduation for high-accuracy grinding.
It is commonly used in tool rooms for its rigid, high-quality, Japanese-made construction.
Key Specifications:
Grinding Capacity: 6 inches x 18 inches
Table Size: 6 inches x 18 inches
6" x 18" Walker Ceramax Chuck
Maximum Distance (Table to Spindle Center): 11" to 18" (varies by model configuration/year)
Longitudinal Table Travel: 14" to 20.87"
Cross Feed Travel: 8" to 8.27"
Grinding Wheel Size: 8" x 1/2" to 1" x 1-1/4" (bore)
Spindle Motor: 2 HP
Vertical Feed per Revolution: 0.050"
Handwheel Graduations: 0.0001" to 0.0002"
Weight: Approx. 1,500 lbs - 2,200 lbs

Features:
Guideways: Linear ball bearing system for smooth operation.
Spindle: Direct drive cartridge-type.
Lubrication: Manual one-shot lubrication system.
Options: Often equipped with an O.S. Walker electromagnetic chuck.
Construction: Hardened and ground table, saddle, and column ways.