Lathe Faceplate/Driveplate - 14" OD with threaded Hub 2 3/4" X 4 TPI

Description

Lathe Faceplate/Driveplate - 14" OD with threaded Hub 2 3/4" X 4 TPI. Condition is "Used". Shipped with USPS to lower 48 states only.  No international shipping.
1. The thread pitch was found to be 4 TPI using a thread gage.  The major diameter of the internal Hub thread was determined by measurement of the minor diameter (2.500 average of 6 values).  This value was then compared with those tabulated in Machinery's Handbook 23rd Edition page 1481.  It was found to lie within the limits given for the 2 3/4" X 4 TPI entry.
2. Other pertinent information:
4 - 3/4" T-slots
12 - 3/4" Dog-drive slots
Thickness = 2 3/8"
Weight = 50 LB
3. Manufacturer is unknown.  However, CAT #45617 is stamped on the edge and 4718 is cast into the underside.