Drum Motor & Idler Dimensions
Bracket Dimensions
Optional Cable Type Dimensions
Drum Motor Specifications
Cross Sectional Diagram
Parts Description

Dimensions (in inches)

Drum Motor
TM315A50

Drum Motor
TM315B50

Idler
KT315A50

Idler
KT315B50

Standard face widths (L) in inches for the TM315A50 and KT315A50: 19.69*   21.65*   23.62   25.59   27.56   29.53   31.50   33.46   35.43   37.40   39.38   41.34   43.31   45.28 

Standard face widths (L) in inches for the TM315B50 and KT315B50: 21.65*   23.62*   25.59   27.56   29.53   31.50   33.46   35.43   37.40   39.38   41.34   43.31   45.28 

*This face width is not available in all horsepower.

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Bracket AB 50

Optional Cable Type

Note: When Optional Cable Type is selected, the minimum face width (L) increased by 1.969 inches.

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Specifications

Type	HP	Belt speed in feet per minute (ft/min) Belt pull measured in pounds (lbs.)														Minimum length (L) in inches		Weight in pounds (lbs.) at L = 23.62 inches
																Design A	Design B
TM315 - 410	10.0	959	787	709	567	520	503	444	387	335	309	288	267	241	(ft/min)	23.62	25.59	299.80
		321	392	436	544	630	648	695	848	920	997	1140	1156	1335	(belt pull)
		222	182	*168	*144	(ft/min)
		1391	1755	1837	2144	(belt pull)
TM315 - 475	7.5	959	787	709	567	520	503	444	387	335	309	288	267	241	(ft/min)	21.65	23.62	292.80
		241	294	327	408	469	485	521	625	690	748	849	867	999	(belt pull)
		222	182	168	*144	*132	*120	(ft/min)
		1043	1313	1378	1608	1754	1930	(belt pull)
TM315 - 455	5.5	959	787	709	567	520	503	444	387	335	309	288	267	241	(ft/min)	19.69	21.65	291.00
		180	228	250	309	340	355	401	460	541	580	621	672	732	(belt pull)
		222	182	168	144	132	*120	(ft/min)
		811	990	1070	1252	1371	1504	(belt pull)
TM315 - 65	5.0	631	517	465	373	343	279	253	203	158	120	111	94	87	(ft/min)	19.69	21.65	291.00
		245	299	331	414	450	554	610	760	975	1371	1390	1634	1765	(belt pull)
		*76	(ft/min)
		2021	(belt pull)
TM315 - 44	4.0	520	425	385	307	241	182	168	144	132	120	(ft/min)				19.69	21.65	282.20
		238	290	321	402	512	679	736	857	934	1025	(belt pull)
TM315 - 64	4.0	631	517	465	373	343	279	253	203	158	120	111	94	87	(ft/min)	19.69	21.65	291.00
		196	239	265	331	360	443	488	608	780	1095	1112	1307	1412	(belt pull)
		*76	(ft/min)
		1617	(belt pull)
TM315 - 63	3.0	343	279	253	203	158	120	111	94	87	76	(ft/min)				19.69	21.65	282.20
		270	332	366	456	585	769	834	980	1058	1221	(belt pull)
TM315 - 83	3.0	250	206	187	149	116	87	80	71	66	59	(ft/min)				19.69	21.65	291.00
		371	450	497	623	800	1059	1154	1307	1406	1568	(belt pull)
TM315 - 82	2.0	250	206	187	149	116	87	80	71	66	59	(ft/min)				19.69	21.65	291.00
		247	300	331	415	533	706	769	871	937	1045	(belt pull)
TM315 - 122	2.0	163	132	120	94	76	57	52	45	40	38	(ft/min)				19.69	21.65	291.00
		379	467	512	653	806	1089	1188	1376	1548	1633	(belt pull)
TM315 - 815	1.5	250	206	187	149	116	87	80	71	66	59	(ft/min)				19.69	21.65	282.20
		185	225	248	311	400	530	576	653	702	784	(belt pull)
* Please consult the Van der Graaf technical department for use of these speeds. - Other belt speeds and face widths are available. - The total weight of the unit increases by 3.92 pounds per inch above 23.62 inches. - When the drive is supplied with lagging, the covered face width is reduced by 1.18 inches. - Belt speed is measured on the center of the unit without lagging. - Listed belt speeds are under full load conditions and may be higher under no load conditions. - When an electromagnetic brake is required, the minimum face width is increased by 5.91 inches. NOTE: TM315 type drum motors are available in all standard voltages and are electrically reversible.

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Cross Sectional Diagram & Parts Description

Position Number	Part Description	Position Number	Part Description
1	Shell	33	Socket Head Cap Screw
2A	End Flange	34	Filler Plug
2B	End Flange	35	Washer
3	Gear Housing	36	Ball Bearing
4	Motor Flange	36V	Cylindrical Bearing
6	Shaft End	37	Ball Bearing
7	Hollow Shaft	38	Ball Bearing
8	External Gear	39	Needle Bearing
9/10	Pinion with Bushing	40	Shim
11	Gear	41	Locking Disc
12	Distance Ring	42	Snap Ring
13	Stator	43	Snap Ring
14	Rotor	44	Snap Ring
15	Socket Head Cap Screw	45A	Bearing Race
16	Cable Passage	45B	Bearing Race
18	Gasket	45DS	Double Seal Adaptor
20	Terminal Board	46	Oil Seal
23	Fillister Head Machine Screw	50	Seal
24	Fillister Head Machine Screw	51	Junction Box
27	Set Screw	52	Junction Box Cover
28	Set Screw	53	Plug
29	Key	54	Key
31	Socket Head Cap Screw	55	Backstop Bearing
32	Washer Copper	57	Name Plate

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