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Accessories / Kits Adjustable Motor Bases - NEMA ® 48-447T Frames
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Heavy gauge steel mounting bases simplify the install- ation of motors and make the tensioning, maintenance and replacement of belts a simple efficient task. Fabricated from sheet or steel plate, then primed and finished in a gray rust and corrosion resistant oven-baked finish. Gussets and reinforcing channels on larger units and continuous seam welding on all units give these bases
strength and durability for a long life. A single (215T frame and smaller) or double (NEMA 254T frame and larger) zinc plated adjusting screw is provided. Motor mounting bolts are included. Adjustable motor bases are designed to mount to your existing motor’s base.
XC
XC
AR
AR
BT
BT
F
AM
BB
AM
BB
F
F
D BOLT
D BOLT
AR
AR
AT
AT
E
E
AYBOLT AU DIA.
AYBOLT AU DIA.
AX
E
E
AO
AO
AX
AO
AO
AL
AL
NEMA 48 thru 215T
NEMA 254T thru 447T
App. Wgt. (lbs.)
D* Bolt
AY Bolt
List Price
Catalog Number
Frame
AL AM AX BB E
F AO AR AU** BT AT
XC
48 56
85 85
10 61⁄4 11⁄8 21⁄8 13⁄8 31⁄2 23⁄4 3⁄8 3.00 0.08 7⁄8 5⁄16 x 1 3⁄8 x 4 2 2 105⁄8 61⁄2 11⁄8 27⁄16 11⁄2 313⁄16 27⁄8 3⁄8 3.00 0.08 7⁄8 5⁄16 x 1 3⁄8 x 4 3 3 101⁄2 71⁄2 11⁄8 23⁄4 2 33⁄4 33⁄8 3⁄8 3.00 0.12 13⁄16 5⁄15 x 1 3⁄8 x 4 5 5 101⁄2 81⁄2 11⁄8 23⁄4 21⁄2 33⁄4 37⁄8 3⁄8 3.00 0.12 13⁄16 5⁄15 x 1 3⁄8 x 4 6 6 123⁄4 91⁄2 11⁄2 33⁄4 21⁄4 41⁄2 41⁄4 1⁄2 3.00 0.13 11⁄2 3⁄8 x 13⁄4 1⁄2 x 5 9 9 123⁄4 101⁄2 11⁄2 33⁄4 23⁄4 41⁄2 43⁄4 1⁄2 3.00 0.13 11⁄2 3⁄8 x 13⁄4 1⁄2 x 5 9 9 15 11 13⁄4 41⁄4 23⁄4 51⁄4 43⁄4 1⁄2 31⁄2 0.16 11⁄2 3⁄8 x 13⁄4 1⁄2 x 5 13 13 15 121⁄2 13⁄4 41⁄4 31⁄2 51⁄4 51⁄2 1⁄2 31⁄2 0.16 11⁄2 3⁄8 x 13⁄4 1⁄2 x 5 15 15 193⁄4 167⁄8 2 51⁄2 43⁄4 7.0 71⁄2 5⁄8 41⁄2 3⁄16 111⁄16 1⁄2 x 2 5⁄8 x 6 21 21 193⁄4 183⁄8 2 51⁄2 51⁄2 7.0 81⁄4 5⁄8 41⁄2 3⁄16 111⁄16 1⁄2 x 2 5⁄8 x 6 22 22 223⁄4 191⁄4 21⁄2 61⁄4 51⁄4 8.0 81⁄2 3⁄4 51⁄4 3⁄16 23⁄16 5⁄8 x 21⁄2 3⁄4 x 9 31 31 223⁄4 203⁄4 21⁄2 61⁄4 6 8.0 91⁄4 3⁄4 51⁄4 3⁄16 23⁄16 5⁄8 x 21⁄2 3⁄4 x 9 32 32 251⁄2 201⁄2 21⁄2 7 55⁄8 9.0 91⁄8 3⁄4 6.00 1⁄4 21⁄16 5⁄8 x 21⁄2 3⁄4 x 9 44 44 251⁄2 211⁄2 21⁄2 7 61⁄8 9.0 95⁄8 3⁄4 6.00 1⁄4 21⁄16 5⁄8 x 21⁄2 3⁄4 x 9 45 45 173⁄4 151⁄8 2 173⁄4 167⁄8 2 5 41⁄8 61⁄4 65⁄8 5⁄8 4.00 3⁄16 17⁄16 1⁄2 x 13⁄4 5⁄8 x 6 17 17 5 5 61⁄4 71⁄2 5⁄8 4.00 3⁄16 17⁄16 1⁄2 x 13⁄4 5⁄8 x 6 18 18
175032.00 175033.00 175034.00 175035.00 175036.00 175037.00 175038.00 175039.00 175040.00 175041.00 175042.00 175043.00 175044.00 175045.00 175046.00 175047.00 175048.00 175049.00 175088.00 175089.00 175090.00 175302.00
143T 102 145T 102 182T 132 184T 132 213T 163 215T 163 254T 248 256T 248 284T 270 286T 270 324T 356 326T 356 364T 469 365T 469 404T 844 405T 844 444T 1,044 445T 1,044 447T 1,151 449T 1,151
283⁄4 223⁄8 3 283⁄4 237⁄8 3 311⁄4 245⁄8 3 311⁄4 265⁄8 3 311⁄4 301⁄8 3 311⁄4 351⁄8 3
8 61⁄8 10.0 97⁄8 7⁄8 7.00 1⁄4 21⁄2 3⁄4 x 3 3⁄4 x 11 60 60 8 67⁄8 10.0 105⁄8 7⁄8 7.00 1⁄4 21⁄2 3⁄4 x 3 3⁄4 x 11 61 61 9 71⁄4 11.0 11.0 7⁄8 71⁄2 1⁄4 21⁄2 3⁄4 x 3 3⁄4 x 11 68 68 9 81⁄4 11.0 12.0 7⁄8 71⁄2 1⁄4 21⁄2 3⁄4 x 3 3⁄4 x 11 73 73 9 10 11.0 133⁄4 7⁄8 71⁄2 5⁄16 3 3⁄4 x 31⁄2 3⁄4 x 11 92 92 9 121⁄2 11.0 161⁄4 7⁄8 71⁄2 5⁄16 3 3⁄4 x 31⁄2 3⁄4 x 11 95 95
* Motor mounting bolt diameter and length, four supplied with each base ** Base mounting bolts, four required—not supplied with base
Specifications are subject to change without notice NOTE: These bases are not suitable for vertical mounting All dimensions in inches
Transition Bases Transition bases compensate for the difference in mounting dimensions and shaft height of a rigid base NEMA T frame to the next higher NEMA U frame. This makes it possible, for example, to replace a 10 HP NEMA 254U frame motor with a 10 HP NEMA 215T frame motor without modifying the basic installation. Made of the same high-quality materials and construction as the
adjustable motor bases above. They are for horizontal mountings, shimming may be needed for direct coupled loads. Thread size listed is for mounting transition base to the “T” frame motor. Dimensions listed are for one piece—two are supplied, one for each side of the motor’s foot.
ConvertsT Frame 143T/145T 182T/184T
To U Frame Catalog Number
List Price
App. Wgt. (lbs.)
Height (Inches)
Width (Inches)
Length (Inches) 5⁄16-18
Thread 5⁄16-18
182/184 213/215
86
2 3 5 8
1
2 1⁄4 1 3⁄4
175091.00 175092.00 175093.00 175094.00 175095.00 175097.00 175098.00 175127.00
126 148 208 277 351 469 600
3⁄4
3⁄8-16 3⁄8-16 1⁄2-13 1⁄2-13 5⁄8-11 5⁄8-11 3⁄4-10
3⁄8-16 3⁄8-16 1⁄2-13 1⁄2-13 5⁄8-11 5⁄8-11 3⁄4-10
213T/215T 254U/256U 254T/256T 284U/286U 284T/286T 324U/326U 324T/326T 364U/365U 364T/365T 404U/405U 404T/405T 444U/445U
1
2 7⁄16
3⁄4
2 3⁄4 3 1⁄4
10 13 22 24
1 1 1 1
3 11⁄16
4 1⁄4 4 1⁄4
Specifications are subject to change without notice
NEMA is a trademark of National Electrical Manufacturers Corporation. All Rights Reserved.
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