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Telechron Rotor Technical Reference Information

Note: this will always be work in process as different rotor versions are discovered. (Last updated 2/12/15)

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 a reliable identifier.

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

Unique 1/16" Needle Shaft w/9 tooth gear

348, 2453


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 5/8" Hollow w/9 tooth gear

2515, 245, 247


B-2

1

Nickel/Brass

R.H. Threaded shaft for Cam

2376, 1181

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-3

6

Brass

1/8" X 1/2" Solid

1386


B-3

6

Nickel/Brass

10 tooth 3/8" long gear


3317


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, 2481, 3191, 3406


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

2

Aluminum

1/8" X 1/2" Solid

3546


B-13

30

Nickel/Brass

1/8" X 1/2" Solid

2679, 1000, 3210


B-13

1/2

Aluminum


1/8" X 1/2" Solid

3515


B-13

30

Aluminum


1/8" X 1/2" Solid

3514


B-13

60

Aluminum

1/8" X 1/2" Solid

3513


B-13

3

Nickel/Brass

1/8" X 1/2" Solid

3200


B-9

1

Brass

1/8" X 1/2" Solid

1721, 810

Plug in tail

BC

60

Nickel/Brass

9 tooth gear

?


BC

60

Nickel/Brass

1/8" X 1/2" Solid

2782


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 or 9 tooth

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 (13/16" O.D.)

2387, 2124


BF-5

1

Nickel/Brass

18 tooth gear

2519, 2431


BF-5

1

Nickel/Brass

36 tooth gear (9/16" O.D.)

2518


BF-2

1

Nickel/Brass

36 tooth gear (3/4" O.D.)

1001, 1024, 2670, 2440


BF-2

1

Nickel/Brass

18 tooth gear

1379


BF-6

1

Nickel/Brass

36 tooth gear (13/16” O.D.)

2575, 2675


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, 3510

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-6

1

Nickel/Brass

12 Tooth Gear, No Shaft

2397

2 Watt, B-2 Gear Train, Long Tail, Short Case

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-9

60

Nickel/Brass

1/8" X 1/2" Solid

1690

Plug in tail

B-11

1




Plug in tail

H-1

3.6

Nickel/Brass

12 tooth gear

1108

Plug in tail

H-2

3.6

Nickel/Brass

10 tooth gear

1145


H-3

3.6

Nickel/Brass

10 tooth gear

1313, 1145, 768, 714, 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

2327, 2396, 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-3

135 RPM

Copper

10 tooth gear

2473


H-4

3 RPH

Nickel/Brass

13 tooth gear

2050


H-5

1 RPH

Nickel/Brass


2074


H-7

1 RPH

Nickel/Brass

Clutch Gear

2370


H-7

1 RPH

Nickel/Brass

Center Shaft

2687


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

Long Shaft

F-1

3.6@25 Hz

Nickel/Brass

10 tooth gear

523


S-1

3.6

Aluminum

10 tooth gear

3509, 3154


S-4

3.6

Aluminum

10 tooth gear


3296, 3313


S-4

3.6

Aluminum

15 tooth gear


3243, 3310


S-5

3.6

Aluminum

10 tooth gear

3404, 3378


S-7

3.6

Aluminum

10 tooth gear

3487


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

C-5

2

Nickel/Brass


2703

Tower Clock, 6 watt tail

IM9K

30 day



2835


BC

57.6




Traffic Light Controller