Dodge 200 Series Buku Petunjuk - Halaman 3

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Halaman Cetak

INSTALLATION

USN 200 & 300 Series Direct Mount

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).

Install the bearing parts in the following sequence (refer to

parts drawing):

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.

Seal Ring—Install a seal ring on shaft with largest O.D.

toward bearing.

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

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

MN3066