ABB DODGE USN 526 Manual - Page 3

Browse online or download pdf Manual for Industrial Equipment ABB DODGE USN 526. ABB DODGE USN 526 16 pages. Adapter mount & direct mount plummer blocks

INSTALLATION:
USN 200 and 300 Series Direct Mount
1.
Measure the internal clearance of the bearing before
mounting. Place the bearing in an upright position as
shown in Figure 1. Seat the inner ring and roller elements by
pressing down firmly on the inner ring bore while rotating
the inner ring a few times. Position the roller assemblies
so that a roller is at the top most position on either side.
Using a feeler gauge measure the clearance for each
side by inserting as far as possible and sliding over top of
roller (Figure 1). Write down the measured clearance and
compare with specifications Table 3. Note: Do not rotate
bearing when moving feeler between roller and outer ring.
Note: For cylindrical bore direct mount bearings, it
is not necessary to check internal clearance after
mounting. It is, however, important to verify the shaft
diameters (Tables 4, 5, and 6) and to measure the
unmounted internal clearance to ensure conformance
to specifications (Table 3).
2.
Install the bearing parts in the following sequence (refer to
parts drawing):
a. V-ring Seal — Slide one of the V-ring seals onto the
shaft, making sure lip is toward the bearing.
Note: Do not install V-ring seal on seal ring until
housing cap has been set in place and tightened.
b. Seal Ring — Install a seal ring on shaft with largest
O.D. toward bearing.
c. Bearing — Install bearing. Bearings with cylindrical
bore up to 70 mm may be cold mounted on the shaft.
Apply coat of light oil to the shaft and bearing bore,
then press on the bearing by mechanical or hydraulic
device or use the mounting nut to drive the bearing
onto the shaft. Bearings with cylindrical bore above
70 mm are heated for mounting on shaft. Bearings,
heated in oil between 93°C and 102°C, should have the
bore wiped dry with a clean cloth and while bearings
are still in a heated condition, they should be rapidly
pushed on the shaft and positioned squarely against
the shoulder. A slight twisting motion during fitting
facilitates the mounting. Large bearings are generally
handled with a hoist or crane.
The use of proper safety equipment including heat
resistent gloves is required for all steps.
Table 3 - Radial Clearance of 222 Series Spherical
Roller Bearings (Straight Bore)
Basic Bearing No.
22209
22210
22211
22212
22213
22214
22215
22216
22217
22218
22219
22220
22222
22224
22226
22228
22230
22232
3
C3 Radial Clearance (mm)
Min.
Max.
.055
.075
.055
.075
.065
.090
.065
.090
.065
.090
.080
.110
.080
.110
.080
.110
.100
.135
.100
.135
.100
.135
.100
.135
.120
.160
.120
.160
.145
.190
.145
.190
.170
.220
.170
.220