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Dimension Sheets and Catalogs

Motor Mounting Selection Chart based on HP and RPM

Adjustable Motor Bases

PDF Dimension Sheets

Adjustable Motor Base, Style A and A2 (NEMA Frame Sizes 56-215, Single and Adjusting)
Adjustable Motor Base, Style B2 (NEMA Frame Sizes 254-449, Double Adjusting)
Heavy Duty Motor Base, Style A2HD (NEMA Frame Sizes 182-215, Double Adjusting)
Heavy Duty Motor Base, Style C2HD (NEMA Frame Sizes 254-449, Double Adjusting)

Standard bases are recommended for motors up to 150 HP @ 1800RPM on non-severe applications. Heavy Duty Bases or standard rails are recommended for motors between 150 HP @ 1800 RPM and 250 HP @ 1800 RPM on non-severe applications. See Motor Mount Selection Chart

Autocad Drawings - 2D and 3D require Autocad or Viewer - Download Viewer Here

PDF	Autocad 3D DWF	Autocad 3D STP Files	PDF	Autocad 3D DWF	Autocad 3D STP Files
56	56	56	254B2	254B2	254B2
143	143	143	256B2	256B2	256B2
145	256B2	145	284B2	284B2	284B2
182	182	182	286B2	286B2	286B2
182A2	182A2	182A2	324B2	324B2	324B2
184	184	184	326B2	326B2	326B2
184A2	184A2	184A2	364B2	364B2	364B2
213	213	213	365B2	365B2	365B2
213A2	213A2	213A2	404B2	404B2	404B2
215	215	215	405B2	405B2	405B2
215A2	215A2	215A2	444B2	444B2	444B2
			445B2	445B2	445B2
			447B2	447B2	447B2
			449B2	449B2	449B2

Transition Bases or Conversion Bases

PDF Dimension Sheets

Original Frame to T Frame (Former NEMA Frame Sizes 203-284)
Original Frame to T Frame (Former NEMA Frame Sizes 324-445)
Original Frame to U Frame (Former NEMA Frame Sizes 66-365S)
U Frame to T Frame (Former NEMA Frame Sizes 182-365U)
U Frame to T Frame (Former NEMA Frame Sizes 404U-445US)

Autocad Drawings

PDF	Autocad 2D
1814T	1814T
25U21T	25U21T
28U25T	28U25T
32U28T	32U28T
36U32T	36U32T
40U36T	40U36T
44U40T	44U40T

Rails

Standard Rails, Style 1 (NEMA Frame Sizes 440AC-680AC)
Standard Rails, Style 2 (NEMA Frame Sizes 440AC-680AC)
Heavy Duty Rails (NEMA Frame Sizes 440, 500, 5000, 580, 680, 6800 Series)
Heavy Duty Structural Rails (NEMA Frame Sizes 500, 580, & 680 Series)

Standard rails are recommended for motors between 150 HP @ 1800 RPM and 250 HP @ 1800 RPM on non-severe applications. Heavy duty rails are recommended for motors 250 HP @ 1800 up to 500 HP @ 1800RPM or on severe applications. Heavy Duty Structural rails are recommended for motors greater than 500HP See Motor Mount Selection Chart

"Automatic^®" Motor Bases

"Automatic^®" Motor Base, Style 600 (NEMA Frame Sizes 48-286, Spring Loaded, Reactive)
"Automatic^®' Motor Base, Style DX-900 (NEMA Frame Sizes 324-447, Spring Loaded, Reactive)
Excellent for applications involving pumps, fans, and blowers.
"Automatic^®" Motor Base, Style DD-1100 (NEMA Frame Sizes 213-447, Spring Loaded, Reactive)
Ideal for applications involving heavy shock loads or vibrations such as rock crushers, vibrating feeders or screens, compressors, and foundry shake-outs.
"Automatic^®" Motor Base, Style 700 (NEMA Frame Sizes 56-326, Fixed)
Designed to quickly and easily move the motor, during operation with either a hex nut or hand crank, to increase or decrease the center distance between pulleys.
"Automatic^®" M ounting Position Chart - Horizontal and Vertical

Pivoting Base (Reactive)

Please view the Pivoted Motor Base (Reactive) Catalog

Standard Pivoting Base (Fixed Position)

Pivoting Motor Base (NEMA Frame Sizes 56-215T)

Heavy Duty Pivoting Base (Fixed Position)

Pivoting Motor Base (NEMA Frame Sizes 56-215T)
Pivoting Motor Base (NEMA Frame Sizes 254T-449T)

Dodge Bases

Stainless Steel Adjustable Bases

Standard Stainless Steel Adjustable Base
Dimension sheets are the same as Style A, A2, B, B2
Heavy Duty Stainless Steel Adjustable Base
Dimension sheets are the same as Style C2HD

DC Bases — Please Call

Sole Plates — Please Call

Metric Adjustable Motor Bases (IEC 90S-280M) — Please Call

Catalogs