Size and Type of Lathe

16-inch Series N Lathes

15-Inch Series N Lathes

13-inch Series N Lathes

11-inch Series R Lathes

Swing over lathe bed

16 1/4"

15 1/4"

13 1/4"

11 1/8"

Swing over chip guard

9 3/4"

9 3/8"

8 1/4"

7"

Swing over saddle, chip guard removed*

9 3/4"

9 3/8"

9 1/4"

7"

Spindle nose diameter and thread

2 3/8" - 6

2 1/4" - 6

1 7/8" - 8

1 5/8" - 8

Hole through headstock spindle

1 3/8"

1 1/8"

1"

7/8"

Maximum collet capacity

7/8"

3/4"

5/8"

17/32"

Spindle centers for headstock and tailstock Std. Morse Taper

No. 3

No. 3

No. 3

No. 2

Motor speeds, rpm

1150

1150

1150

1725

Spindle speeds, Motor drive

Back gear speeds

17, 28

19, 32

24, 38

40, 69

Back gear speeds

44, 73

48, 81

58, 92

118

Open belt speeds

138, 223

139, 223

173, 270

238, 377

Open belt speeds

353, 587

340, 568

410, 646

608

High spindle speeds

80, 138, 236

Optional at extra cost

477, 754, 1216

Cone pulley belt width

2 1/4"

2"

1 3/4"

1 1/2"

Standard size of motor

1 hp

1 hp

3/4 hp

1/2 hp

V-belts for motor, number used

3 belts

3 belts

2 belts

1 belt

Countershaft friction pulleys

10" x 3 5/8"

10" x 3 5/8"

8" x 2 3/8"

6 7/8" x 2 3/16"

Countershaft speed

222 rpm

225 rpm

250 rpm

300 rpm

Thread cutting range:

Quick change gear lathes

2 to 112

2 to 112

2 to 112

2 to 112

Standard change gear lathes

2 to 112

2 to 112

4 to 112

4 to 112

Feeds, longitudinal, automatic friction

Quick change gear lathes

.002" to .015"

.002" to .015"

.003" to .020"

.003" to .020"

Standard change gear lathes

.002" to .020"

.002" to .020"

.002" to .020"

.002" to .020"

Feeds, longitudinal, lead screw, and half nut. Junior and Workshop

n/a

n/a

n/a

n/a

Lead screw, diameter and threads

1 1/8" - 6

1 1/8" - 6

1" - 6

7/8" - 8

Feeds, cross, automatic frcition

Quick change gear lathes

.002" to .015"

.002" to .015"

.001" to .008"

.001" to .008"

Standard change gear lathes

.002" to .020"

.002" to .020"

.0007" to .0005"

.0007" to .0005"

Tailstock spindle travel

5 3/4"

5 1/4"

4 1/4"

3"

Tailstock top set-over for taper turning

1"

15/16"

15/16"

7/8"

Compound rest cross slide travel

10"

8 5/8"

9"

8"

Compound rest top angular hand feed

4 3/8"

3 1/2"

3 1/4"

2 5/8"

Tool post opening for tool holder shank

5/8" x 1 3/8"

1/2" x 1 1/8"

1/2" x 1 1/8"

3/8" x 7/8"

Tool holder takes cutter bits

3/8" sq.

5/16" sq.

5/16" sq.

1/4" sq.

Large face plate, diamter

13 1/4"

12 1/2"

10"

9"

Small face plate, diameter

8 1/16"

7 5/8"

6 5/8"

5 5/8"

Taper attachment, maximum length will turn at one setting

12"

10"

10"

9"

Taper attachment, maximum taper per foot.

3"

3"

3"

3"