The Timken Company
The Timken Company
4500 Mt Pleasant St. NW
N. Canton, OH 44720
Phone: (234) 262-3000
E-Mail: CustomerCAD@timken.com • Web site: www.timken.com
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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.
Sliding Cast Iron Motor Bases - Imperial
Sliding Cast Iron Motor Bases - Imperial-2
Unit of Measure
Items Sliding Cast Iron Motor Bases - Imperial
68514440212
Sliding "SMB" Type Motor Bases - Imperial 		Sliding Cast Iron Motor Bases - Imperial
68514440213
Sliding "SMB" Type Motor Bases - Imperial 		Sliding Cast Iron Motor Bases - Imperial
68514440214
Sliding "SMB" Type Motor Bases - Imperial
Description  N/A SMB-143-SLIDING MOTOR BASE N/A SMB-184-SLIDING MOTOR BASE N/A SMB-254-SLIDING MOTOR BASE
Dimension A N/A 15.750 in N/A 19.500 in N/A 28.625 in
Model N/A SMB-143 N/A SMB-184 N/A SMB-254
Type N/A Pump Mounting Bracket
Material N/A Steel
Application N/A Adjustable Center VSP Drive
Model Compatibility N/A for NEMA Motor Frame Sizes
Contents N/A One Adjustable Motor Base
Dimension B N/A 12.625 in320.68 mm N/A 15.167 in385.23 mm N/A 23.625 in600.08 mm
Dimension C N/A 8.000 in203.20 mm N/A 7.250 in184.15 mm N/A 10.375 in263.53 mm
Dimension D N/A 8.750 in N/A 10.000 in N/A 14.000 in
Dimension E N/A 5.500 in139.70 mm N/A 7.500 in190.50 mm N/A 10.000 in254.00 mm
Dimension E1 N/A 4.250 in107.95 mm N/A 5.500 in139.70 mm N/A 8.500 in215.90 mm
Dimension E2 N/A N/A N/A 7.500 in190.50 mm
Min. Dimension F N/A 1.656 in42.07 mm N/A 3.750 in95.25 mm N/A 7.953 in202.01 mm
Max. Dimension F N/A 4.469 in113.51 mm N/A 6.219 in157.96 mm N/A 8.453 in214.71 mm
Min. Dimension F1 N/A N/A 2.563 in65.09 mm N/A 5.375 in136.53 mm
Max. Dimension F1 N/A N/A 6.313 in160.34 mm N/A 7.250 in184.15 mm
Dimension G N/A 13.875 in352.43 mm N/A 17.375 in441.33 mm N/A 26.000 in660.40 mm
Dimension H N/A N/A 0.406 in10.32 mm N/A 0.563 in14.29 mm
Dimension H1 N/A 0.406 in10.32 mm N/A 0.344 in8.73 mm N/A 0.438 in11.11 mm
Dimension I N/A 1.875 in47.63 mm N/A 2.000 in50.80 mm N/A 2.125 in53.98 mm
Dimension J N/A 1.938 in49.21 mm N/A 2.000 in50.80 mm N/A 2.250 in57.15 mm
Dimension K N/A 2.500 in63.50 mm N/A 2.625 in66.68 mm N/A 3.219 in81.76 mm
Dimension L N/A 0.109 in2.78 mm N/A 0.141 in3.57 mm N/A 0.188 in4.76 mm
Dimension M N/A 3.500 in88.90 mm N/A 3.500 in88.90 mm N/A 4.500 in114.30 mm
Dimension N N/A 1.375 in34.93 mm N/A 1.375 in34.93 mm N/A 1.813 in46.04 mm
Dimension O N/A 0.406 in10.32 mm N/A 0.406 in10.32 mm N/A 0.516 in13.10 mm
Dimension P N/A 1.875 in47.63 mm N/A 1.750 in44.45 mm N/A 2.500 in63.50 mm
Dimension Q N/A 1.406 in35.72 mm N/A 1.750 in44.45 mm N/A 2.313 in58.74 mm
Dimension S N/A 7.000 in177.80 mm N/A 9.000 in228.60 mm N/A 13.000 in330.20 mm
Dimension T N/A 5.125 in N/A 5.188 in N/A 7.125 in
Dimension U N/A 1.250 in31.75 mm N/A 2.000 in50.80 mm N/A 2.500 in63.50 mm
Dimension W N/A 7.250 in184.15 mm N/A 9.000 in228.60 mm N/A 12.750 in323.85 mm
Dimension X N/A 11.375 in288.93 mm N/A 13.375 in339.73 mm N/A 21.000 in533.40 mm
Diameter (Dimension Y) N/A 0.625 in N/A 0.750 in N/A 1.250 in
Diamenter (Dimension Z) N/A 1/2-13 N/A 5/8-11 N/A 1-5
Travel Distance N/A 5 5/8 in N/A 7 in N/A 11 1/4 in
Weight N/A 9.00 lb N/A 15.25 lb N/A 47.25 lb
UPC Number N/A 40212 N/A 40213 N/A 40214
NEMA Frame Motor Size N/A 48, 56, 143T N/A 143T, 145T, 182T, 184T N/A 184T, 213T, 215T, 254T
Cubic inches N/A 706.28906 in³ N/A 1011.56250 in³ N/A 2855.34375 in³