6.11 Bearing frame
1.
Inspect frame and frame foot for cracks.
2.
Inspect for corrosion or pitting if frame has been exposed to the fluid.
3.
Inspect frame bearing bores per Table 7.
4.
Inspect labyrinth seal o-rings for cuts and cracks.
5.
Inspect shafts and sleeves for wear.
Table 8: Bearing Frame
Group Bearing
Maximum Bearing Frame (228)
Bore mm (inch)
Maximum Bearing Housing
(134A) Bore mm (inch)
M
Thrust Radial
160.02 (6.3002)
130.03 (5.1191)
130.03 (5.1191)
L
Thrust Radial
200.15 (7.8752)
150.11 (5.9065)
160.02 (6.3002)
XL
Thrust Radial
240.03 (9.4500)
180.09 (7.0876)
189.99 (7.4815)
Table 9: Bearing Sizes
Group
Thrust bearing
Radial bearing
M
7312BECBY
NUP312ECP
L
7315BECBY
NUP314ECP
XL
7318BECBY
NUP317ECP
6.12 Reassembly
Specifications
Table 10: Model 3501 Fastener Information
Item
No.
Qty
per
Mixer
Part Name
Group
Construc-
tion
Goulds Part No.
Thread Size Hex
Size
(mm)
Torque Value
See Notes1-
3
N-m
lb-ft
—
3
Hex Head Cap Screw
– Coupling Guard (Not
shown)
All
All
A02818A89 2441 M10 x 1.50
17
- -
- -
—
3
Nut, Hex, Coupling
Guard (Not shown)
All
All
A02089A10 2441 M10 x 1.50
17
13
10
136
1
Locknut, Bearing
M
All
8601-0012
N12
N/A
112
83
L
8601-3015
AN15
N/A
214
158
XL
8601-3018
AN18
N/A
356
263
222S
2
Set Screw, Impeller
Nut
All
316ss
A02819A74 2440 M10 x 1.50
5 Inter-
nal
13
10
Titanium
A02819A74 2156 M10 x 1.50
5 Inter-
nal
14
11
236A
8
Socket Head Cap
Screw – Bearing Re-
tainer to Bearing
Housing
M
All
A05092A47 2443
M6 x 1.00
5 Inter-
nal
13
10
10
L and XL
A03723A82 2443 M10 x 1.50
8 Inter-
nal
63
46
6.11 Bearing frame
3501 Installation, Operation, and Maintenance Instructions
43