Home Telechron Clock Motors Online Telechron Parts Restoration FAQS Clock Troubleshooting Info Electric Clock Repair Links About Us Contact Us

© telechronclock.com

Telechron Rotor Technical Reference Information

Note: this will always be work in process as different rotor versions are discovered. (Last updated 2/13/12)

The most important information needed to match a rotor is the style, speed and cycles that are marked on the rotor. (not the clock's nameplate). The next step is a description of the output shaft/pinion gear.  The M# is generally not too important.

Rotor Style

RPM

Case

Output Shaft/Pinion Gear

Common M#’s

Comments

B-2

1

Brass

1/8" X 1/2" Hollow w/9 tooth gear

1


B-2

1

Brass

1/8" X 1/2" Solid



B-2

1

Brass

R.H. Threaded shaft for Cam


Horizontal Cyclometer

B-2

1

Brass

L.H. Threaded shaft for Cam

547

Vertical Cyclometer

B-2

1

Brass

1/16" Needle Shaft w/9 tooth gear

348


B-2

1

Nickel/Brass

1/8" X 1/2" Hollow w/9 tooth gear

38, 1525, 2409, 2377, 2397, 5


B-2

1

Nickel/Brass

1/8" X 1/2" Solid

1, 38, 583


B-2

1

Nickel/Brass

1/8" X 1/2" Hollow w/9 tooth gear

2409, 1525


B-2

1

Nickel/Brass

R.H. Threaded shaft for Cam

2376, 181

Horizontal Cyclometer

B-2

1

Nickel/Brass

L.H. Threaded shaft for Cam

2374

Vertical Cyclometer

B-2

1

Nickel/Brass

Small 3/32" X 1/2" Hollow w/9 tooth gear

216


B-2

1@50 Hz


1/8" X 1/2" Hollow w/9 tooth gear

509


B-3

1

Brass

1/8" X 1/2" Solid

31, 209


B-3

1

Nickel/Brass

1/8" X 1/2" Solid

2510, 2377, 31, 168(all brass gears), 2738, 377, 2184, 3046, 2381, 3269. 12, 1726(all brass gears)


B-3

4

Nickel/Brass

1/8" X 1/2" Solid

1809


B-3

4

Nickel/Brass

1/8" X 1/4" Short Solid

2200


B-3

2

Brass

1/8" X 1/2" Solid

179


B-10

1

Nickel/Brass

10 tooth large pinion gear

1262


B-11

1

Nickel/Brass

1/8" X 1/4" Short Solid Shaft w/10 tooth gear

2835

Looks like B-3

B-13

1

Nickel/Brass

1/8" X 1/2" Solid

2457, 3186


B-13

1

Aluminum

1/8" X 1/2" Solid

3506, 3610, 3556, 3536


B-13

1

Nickel/Brass

20 tooth Short

3186


B-13

1

Aluminum

13 tooth Short

3556


B-13

1

Aluminum

12 tooth, Hollow, Short

3610


B-13

30

Aluminum

1/8" X 1/2" Solid

3514


B-13

2

Aluminum

1/8" X 1/2" Solid

3546


BC

60

Nickel/Brass

9 tooth gear



BC

57.6

Nickel/Brass



Traffic Light Controller

BC3

60

Aluminum

1/8" X 1/2" Solid

3583


BC3

60

Aluminum

10 tooth gear

3583


B-3

60

Brass

1/8" X 1/2" Solid

14


B-3

60

Nickel/Brass

9 tooth gear

2497


B-3

60

Nickel/Brass

1/8" X 1/2" Solid

2737


BF

1

Nickel/Brass


892


BF-1

1

Nickel/Brass

18 tooth gear

1664


BF-2

1

Brass

36 tooth gear

1024


BF-3

1

Nickel/Brass

36 tooth gear

2387


BF-3

1

Nickel/Brass

36 tooth gear, Large 3/4" O.D.

2124


BF-5

1

Nickel/Brass

18 tooth gear

2519


BF-5

1

Nickel/Brass

36 tooth gear

2518


BF-2

1

Nickel/Brass

36 tooth 3/4” gear

1001, 1024


BF-2

1

Nickel/Brass

18 tooth gear

1379


BF-6

1

Nickel/Brass

36 tooth 13/16” gear

2575


B-7

1

Nickel/Brass

Clutch in end cap



B-15

4

Nickel/Brass

1/8" X 1/2" Solid

2484


B-16

1

Nickel/Brass

1/8" X 1/2" Solid

3388

Short tail like BF

B-16

1

Aluminum

1/8" X 1/2" Solid

3504

Short tail like BF

BCM

60@50 Hz

Nickel/Brass


2495, 2600

12 Watt

BCM

60

Nickel/Brass


2538, 2598

12 Watt

BCM

1

Nickel/Brass


2600

12 Watt

BMX

1

Nickel/Brass

1/8" X 1/2" Solid

2538

12 Watt

BNS

1

Brass



4 Watt, Early style

BX

30

Brass

Gear on end

817

12 Watt, forward/reverse motor for Navy slave clock

B-8

1

Brass

1/8" X 1/2" Solid

776, 1747

Plug in tail

B-8

1

Nickel/Brass

1/8" X 1/2" Solid

1778

Plug in tail

B-8

1

Nickel/Brass

9 tooth gear, hollow shaft

1778

Plug in tail

B-9

1

Brass

1/8" X 1/2" Solid

1721, 810

Plug in tail

B-11

1




Plug in tail

H-1

3.6

Nickel/Brass

12 tooth gear

1108

Plug in tail

H-3

3.6

Nickel/Brass

10 tooth gear

1313, 1314, 1630


H-3

3.6

Copper

10 tooth gear

2394, 2275, 2309, 1313, 2317. 2052, 2582, 2319, 2685


H-3HH-3

3.6@50 Hz

Copper

10 tooth gear

2685


H-3

3.6

Aluminum

10 tooth gear

3401, 3632, 3630


H-3

3.6

Nickel/Brass

10 tooth gear

2386, 2487, 1321, 2395, 1198, 3110

Long Shaft

H-3

14.4

Aluminum

17 tooth gear

3473


H-3

14.4

Nickel/Brass

10 tooth gear

3218


H-3

3.6

Nickel/Brass

12 tooth gear

1676


H-7

1 RPH

Nickel/Brass

Clutch Gear

2370


H-10

3.6

Copper

10 tooth gear

3025, 3042, 3230

Long tail, 4 vane

H-11

3.6

Copper

10 tooth gear

2996

Looks like H-3

H-18

3.6

Copper

10 tooth gear

3150

3 vanes

H-18

3.6 @ 50 Hz

Aluminum

10 tooth gear

3531


F-1

3.6

Nickel/Brass

10 tooth gear

519


F-1

3.6

Nickel/Brass

10 tooth gear

667, 519

Long Shaft

F-1

3.6@25 Hz

Nickel/Brass

10 tooth gear

523


S-1

3.6

Aluminum

10 tooth gear

3509


S-4

3.6

Aluminum

10 tooth gear

3296, 3313


S-4

3.6

Aluminum

15 tooth gear

3243


S-5

3.6

Aluminum

10 tooth gear

3404, 3378


C-5

1

Nickel/Brass


2700, 1557

Tower Clock, 6 watt tail

C-5 MX

1

Brass

16 tooth gear

2712

Tower clock, 12 watt tail

IM9K

30 day



2835


BC

57.6




Traffic Light Controller