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L and X Frames
The oil lubricated L frame provides high thrust capability as
encountered in high discharge pressure applications with tan-
dem mounting of angular contact bearings. The L frame takes
the same motor sizes as the Sand M frames. On the X frame, an
angular contact, tandem bearing arrangement extends NEMA
motor capability from 25 HP TEFC to 40 HP OOP.
Parts list and materials of construction
Table 7: Power End
Item
No.
109
109A Bearing end cover
109C Bearing end cover
112
112A Ball bearing, thrust
113
113A Breather
123
131
131
136
168A Ball bearing coupling
193
228
228A Frame - oil lube
232
233
235
251
Model 3935 Installation, Operation and Maintenance Instructions
Part Name
Bearing end cover
Cast iron
Cast iron
Cast iron
radial
Ball bearing, thrust
Steel
Steel
Grease relief fitting
Steel/cad plate
Steel/zinc plate
Deflector (not
Lam plastic
shown)
Pump foot (BP20
Cast iron
only)
Pump foot (except
Cast iron
BP20)
Bearing lock nut
Steel
Steel
end
Grease fitting
Steel/zinc plate
Frame - grease lube Cast iron
Cast iron
Coupling hub - motor Die metal
Coupling hub - pump Die metal
Coupling sleeve
Rubber**
Sight oiler
White metal/glass
Grease
Lubrication
Material
J
-
-
-
308SZZ 7308PD
-
-
-
-
J
-
-
-
-
J
-
J
J
J
-
Disassembly and reassembly
Y Frame
Foot mounted industrial NEMA motors
from 40 HP TEFC through 150 HP
TEFC are mounted on the Y frame.
The inherent high thrusts encountered
in high pressure applications are car-
ried by an angular contact tandem
bearing arrangement. Pump mounting
is accomplished by utilizing the motor
feet rather than integral mounting pads
on the bearing frame.
Oil Lubrication
S
M
L
S
-
-
-
M
L
-
-
-
-
-
F
-
7408DT 7408DT 7408DT 7313DT
S
-
-
-
M
L
-
-
-
S
M
L
S
M
L
S
M
L
-
408S
408S
408S
S
-
-
S
-
-
-
M
L
S
M
L
S
M
L
S
M
L
-
M
L
X
Y
-
-
X
Y
-
Y
-
-
-
-
X
Y
-
Y
X
-
X
Y
X
Y
313S
-
-
-
-
X
Y
X
Y
X
Y
X
Y
X
Y
19
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