Teletype Model 28 Transmitter Distributor (TD) Gear Charts

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Main Shaft for LXD TD

Level	Unit	Main Shaft
5	7.42	156836
6	8.5	160016
5	7.0	164285
6	8.5	173349
8	11.0	199482
5	7.5	194357
8 to 5 converter		194502
5 to 8 converter		194578

Gear Sets for Stand-Alone LXD TD sets

WPM	Unit	Baud	Gear Set	Motor Pinion	TD Gear
60	7.42	45.5	156658	156627-18T	156626-88T
60	7.50	45.5	194353	194352-17T	194351-56T
67	7.42	50	161358	161352-11T	161351-49T
71	7.00	50	161359	161354-15T	161353-63T
75	7.42	56.9	156728	156725-24T	156726-94T
100	7.42	74.2	156659	156629-24T	156628-72T
100	7.50	75	194348	194349-52T	194350-104T
101	7.42	75	197618	197616-31T	197617-92T

Gear Sets for Multiple-Mounted LXD Units Operating at a Common Speed
(163716-14T motor sprocket, 161520 belt-64T, 163731-28T shaft sprocket)

WPM	Unit	Baud	Gear Set	Motor Pinion	Driven Gear	Cross-shaft Gear	TD Gear
60	7.42	45.5	156658	156627-18T	156626-88T	163725-40T	156844-40T
65	7.00	45.5	173598	173600-26T	173599-120T	163725-40T	156844-40T
67	7.42	50	176152	176154-22T	176153-98T	163725-40T	156844-40T
75	7.42	56.9	156728	156725-24T	156726-94T	163725-40T	156844-40T
100	7.42	74.2	156659	156629-24T	156628-72T	163725-40T	156844-40T
107	7.00	75	173595	173597-30T	173596-84T	163725-40T	156844-40T

Gear Sets for Multiple-Mounted LXD Units Operating at Independent Speeds
(163733-16T motor sprocket, 163744-85T belt, 163743-32T shaft sprocket)

WPM	Unit	Baud	Gear Set	Cross-shaft Pinion	TD Driven Gear
60	7.42	45.5	173098	173100-45T	173099-110T
67	7.42	50	174346	174347-44T	174348-98T
75	7.42	56.9	173101	173103-48T	173102-94T
100	7.42	74.2	173104	173106-56T	173105-84T

Gear Sets for Stand-Alone LBXD TD sets

WPM	Unit	Baud	Gear Set	Motor Pinion	TD Gear
60	7.42	45.5	156658	156627-18T	156626-88T
65	7.00	45.5	158606	158595-13T	158594-60T
67	7.42	50	161358	161352-11T	161351-49T
75	7.42	56.9	156728	156725-24T	156726-94T
100	7.42	74.2	156659	156629-24T	156628-72T
106	7.00	75	161290	161287-24T	161288-68T

Gear Sets for Single TD Base (LCXB) mounted in 28ASR - chart

WPM	Unit	Baud	Gear Set	Pinion	Driven Gear
65	7.00	45.5	159882	155996	155997
65	7.00	45.5	173776	173818	178319
71	7.00	50	161357	161333	161332
71	7.00	50	163499	163497	163498
81	7.00	56.9	198053	198057	198058
106	7.00	74.2	159883	155998	159999
107	7.00	75	163454	163452	163453
60	7.42	45.5	158029	158005	158006
67	7.42	50	161356	161331	161330
75	7.42	56.8	158028	158003	158004
100	7.42-11.0	74.2-110	158027	158002	158001
61	7.50	45.5	178775	178776	178777
66	7.50	50	178772	178773	178774
100	7.50	75	178769	178770	178771

Gear Sets for Dual TD Base (LCXB) mounted in 28ASR - chart

WPM	Unit	Baud	Gear Set	Pinion	Driven Gear
107	7.00	75	-	199090	199091
88	8.50	75	-	170189	170190
67	7.42	50	195146	195144	195145
100	7.42-11.0	74.2-110	-	170293	170297

Gear Sets for Multiple- Mounted LBXD Units Operating at a Common Speed

WPM	Unit	Baud	Motor Gear Set	Motor Pinion	Motor Gear	Cross-Shaft Gear	TD Gear
60	7.42	45.5	162035	162036-27T	162037-132T	162033-48T	162034-96T
65	7.00	45.5	173592	173594-39T	173593-180T	162033-48T	162034-96T
67	7.42	50	176155	176157-33T	176156-147T	162033-48T	162034-96T
71	7.00	50	179212	179213-40T	179214-168T	162033-48T	162034-96T
75	7.42	56.9	162038	162039-24T	162040-94T	162033-48T	162034-96T
100	7.42	74.2	162041	162042-30T	162043-90T	162033-48T	162034-96T
107	7.00	75	173589	173591-45T	173590-126T	162033-48T	162034-96T

Gears for Multiple- Mounted LBXD Units Operating at Independent Speeds

WPM	Unit	Baud	Motor Gear Set	Motor Pinion	Motor Gear	TD Gear Set	Cross-Shaft Gear	TD Gear
60	7.42	45.5	172776	172778-26T	172777-104T	172767	172768-36T	172769-88T
65	7.50	45.5	172776	172778-26T	172777-104T	178821	178819-40T	178820-99T
65	7.00	45.5	172776	172778-26T	172777-104T	178369	179060-52T	179061-120T
66	7.50	50	172776	172778-26T	172777-104T	178824	178822-40T	178823-90T
67	7.42	50	172776	172778-26T	172777-104T	174487	174488-44T	174489-98T
75	7.42	56.9	172776	172778-26T	172777-104T	172770	172771-48T	172772-94T
100	7.42	74.2	172776	172778-26T	172777-104T	172773	172774-52T	172775-78T
106	7.00	75	172776	172778-26T	172777-104T	178366	178367-82T	178368-116T