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Machine Manual Services
POB 2
Grovespring, MO 65662
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Sheldon
Sebastian Lathes
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Sebastian Geared Head Lathes
The
Sebastian Geared Head Lathe came in 2 similar styles a Series A or
13” and Series B or 15”. Both the 2 Lathes could come with 3
different Bed Length’s 5’, 6’, or 8’ thus also weights
ranging from 2295 2705 lbs for the “A” Series & 2370 –
2810 for the “B” Series
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Sebastian Headstock
The
Headstock for the time was a modern or (square) in design, and
engineered to last a very long time. All the gears ran in an oil
bath with “splash” lubrication. The Spindle is “Splined”
and came with “Zero Precision” tapered roller bearings.
Standard through hole is 1 3/8”.
Both models came with the L00 5 MT. The Lathe’s also came
Standard with a 2 Speed Motor, 2 h.p. or 3 h.p. 8 Speeds produced
in High Range assortment from 50 – 1250, and the Low Range
assortment 35 – 910
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Sebastian Gearbox
The
Gear Box is a large devise, giving 60 unique Threads and Pitches,
incorporated into the Box is a Lead Screw Reversing Lever. The
Lead Screw itself is mounted in adjustable tapered roller bearings
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Threads
Per Inch
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4
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4
½
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5
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5
½
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5
¾
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6
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6
½
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6
¾
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7
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7
½
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8
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9
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10
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11
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11
½
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12
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13
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13
½
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14
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15
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16
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18
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20
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22
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23
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24
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26
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27
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28
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30
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32
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36
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40
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44
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46
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48
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52
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54
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56
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60
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64
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72
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80
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88
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92
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96
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104
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108
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112
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120
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128
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144
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160
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176
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184
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192
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208
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216
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224
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240
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Double Walled Apron
The
Sebastian used a Double Walled Apron, One-piece design. Gears run
in an “Oil Bath” and the Apron also has the “One Shot”
Lubrication System
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Tailstock
The
Tailstock on the Sebastian is durable. Built with a
“Cam-action” for rapid locking and release. It is a 3 MT and
has 4 ½” travel. Set over is ¾”
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Oil gage
The
oil gage measures the oil in the Head Sock and Apron for a
constant check of oil levels by the indicator window. Sorry about
the bad picture this was scanned at 9600 dpi & it still came
out bad. the actual image that this came from is ¼” X ¼”
Thus the dots
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Copyright © 2000 - 2005 [Machine
Manuals]. All rights reserved.
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