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All Product Types > INDUSTRIAL MOTION PRODUCTS > Couplings & Power Transmission Parts Catalog > Variable Speed Drives > Adjustable Motor Bases > Sliding "SMB" Type Motor Bases - Imperial > Part Number 68514440212  
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Part Number 68514440212, Sliding "SMB" Type Motor Bases - Imperial


Adjustable Motor Bases

Sliding and Tilting Bases
    It is necessary to change the distance between the motor and driven shaft in order to change speed with an adjustable center drive. The best way to do this is with an adjustable motor base. Lovejoy offers four basic types of motor bases to satisfy requirements of space, convenience, interchangeability, motor frame size, and economy.
Sliding “SMB” Type

Models: SMB143, SMB184, and SMB254
    SMB motor bases are extremely low profile and made of strong, lightweight steel, plated for protection against rust and corrosion. A folding knurled adjusting handle replaces the common round hand wheel to offer easy speed adjustment with minimum effort and no tools. Adjustable maximum and minimum speed stops are included. The adjusting handle is easily removed for the addition of a sprocket or universal joint to adapt to existing control methods.
    For remote control in hazardous or inconvenient locations, Lovejoy offers electric servo motor controlled bases in the SMB style, both chain-driven (MRC) and direct coupled (ERC). Both types come complete with motor, control, and wiring diagram.




Unit of Measure: Imperial Metric Both

Specifications  · Dimensional Data  · Performance Data  · Features

Specifications

Description 
SMB-143-SLIDING MOTOR BASE

Model
SMB-143

Type
Pump Mounting Bracket

Material
Steel

Application
Adjustable Center VSP Drive

Model Compatibility
for NEMA Motor Frame Sizes

Contents
One Adjustable Motor Base

Weight
9.00 lb

UPC Number
40212

NEMA Frame Motor Size
48, 56, 143T


Dimensional Data

Dimension A
15.750 in

Dimension B
12.625 in
320.68 mm

Dimension C
8.000 in
203.20 mm

Dimension D
8.750 in

Dimension E
5.500 in
139.70 mm

Dimension E1
4.250 in
107.95 mm

Min. Dimension F
1.656 in
42.07 mm

Max. Dimension F
4.469 in
113.51 mm

Dimension G
13.875 in
352.43 mm

Dimension H1
0.406 in
10.32 mm

Dimension I
1.875 in
47.63 mm

Dimension J
1.938 in
49.21 mm

Dimension K
2.500 in
63.50 mm

Dimension L
0.109 in
2.78 mm

Dimension M
3.500 in
88.90 mm

Dimension N
1.375 in
34.93 mm

Dimension O
0.406 in
10.32 mm

Dimension P
1.875 in
47.63 mm

Dimension Q
1.406 in
35.72 mm

Dimension S
7.000 in
177.80 mm

Dimension T
5.125 in

Dimension U
1.250 in
31.75 mm

Dimension W
7.250 in
184.15 mm

Dimension X
11.375 in
288.93 mm

Diameter (Dimension Y)
0.625 in

Diamenter (Dimension Z)
1/2-13

Cubic inches
706.28906 in³


Performance Data

Travel Distance
5 5/8 in


Features

Features 
  • Three sizes available to fit NEMA motor frames from fractional through 15 horsepower
  • Simple installation provided by a one-piece motor mounting plate
  • Best possible belt alignment maintained because the motor shaft remains perpendicular to the plane of adjustment
  • Slotted for standard NEMA motor frame mounting, but can be drilled for special mounting sizes to offer flexibility of design


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