Photo Index - Sears | Craftsman - 103.6604 Belt Driven Bench Grinder

Machinery Photo Index

Manufactured/Badged by:
Sears | Craftsman
Chicago, IL

True Manufacturer:
King-Seeley Corp.-Central Specialty Division, Ann Arbor, MI; Ypsilanti, MI

Machine Specifications
Machine Class:	Wood Working Machinery
Machine Type:	Grinder, Bench
Machine Size:	6"x¾"x½"
Submitted By:	Brian Kachadurian

Machine Specifications
Description/Model:	103.6604 Belt Driven Bench Grinder
Date of Manufacturer:	1960 Approx.
Serial Number:	none
Last Updated	9/28/2020 3:23:16 PM

Comments:

>>MACHINE<<
Craftsman/King-Seeley 6" x ¾" x ½" ball bearing, belt driven bench grinder.
Power-bronze finish, estimate DOB around 1960.
Wheel guards are adjustable fore/aft and removable.
Body: cast iron, p/n 25254-103
RH guard: cast iron, p/n 25255-103
LH guard: cast iron, p/n 25256-103
Tool rests: stamped steel one-piece
Shaft: steel, 5/8" dia with 1/2-20 threaded ends
Pulley: 2" x 5/8" dia die-cast aluminum alloy
Ball bearings:
- no identification, double plastic removeable seals
- odd size, OD 1-3/8”, ID 9/16”, W 7/16” (Accurate-Chicago determined them to be a 1622 bearing)
- RH bearing is held into the body by two snap rings, the LH bearing floats in the bore
- small spacer bushing between the RH bearing ID and inner wheel flange
- wheel flanges and nuts must be installed to prevent LH bearing and shaft from falling out of body

>>HISTORY<<
March 2008:
Ebay purchase (included vintage 1930s ¼hp Westinghouse motor).
Disassembled, flushed, and repacked ball bearings with Mobil Polyrex EM grease from Accurate.
Attached to stand and driven at 1725 rpm for buffing or low speed grinding.

Photo 1:

Comments: Front view, as received, damaged drive pulley, worn belt
Source: Me, Canon Powershot w/flash, basement workshop

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Photo 2:

Comments: Rear, new drive pulley installed
Source: Me, Canon Powershot w/flash, basement workshop

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Photo 3:

Comments: Bearing repack exercise
Source: Me, Canon Powershot w/flash, basement workshop

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Photo 4:

Comments: Motor mounted below. Running at 1725 rpm with 8" buffing wheels.
Source:

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Photo 5:

Comments: Driven by a Craftsman 113.19665 General Purpose Power-Bronze 1/3hp 1725rpm motor.
Source: Nikon CoolPix with flash.

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Photo 6:

Comments: LH wheel-A100 for sharpening, RH wheel-Scotchbrite EXL for smoothing/deburring
Source: iPhone 6S camera-existing light-September 2020

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