Brochure

Mtd. Ball
Bearings
G-255
®
Mounted Ball Bearing Engineering Section
Browning Mounted Ball Bearing Housed Units
NOTICE
• These bearings are designed for maximum permissible
static misalignment of ± 1 1/2 degrees. Installation, handling
or operation of the bearing in excess of the maximum of ± 1
1/2 degrees can cause reduction in bearing performance and
may lead to equipment failure.
• Do not strike or hammer on any component of the bearing
and/or shaft. Impact can result in damage to the bearing that
may cause reduction in bearing performance and may lead
to equipment failure.
Step 1: Inspect Shaft and Bore
Shaft should be within tolerance range shown in the table,
clean and free of nicks and burrs. Mount bearings on unused
section of shafting or repair/replace shafting as required. In-
spect both the shaft and bearing bore for debris or contami-
nants. Wipe clean as necessary.
Step 2: Check Support Surfaces
Make sure the base of the housing and the support surfaces
are clean and free from burrs. If the housing elevation is
adjusted with shims these must cover the entire contact area
between the housing and the support surface.
Step 3: Install Unit
To aid installation, keep weight off bearing during mounting.
Slide unit onto shaft by pushing on the inner ring. If it is dif-
cult to mount bearing on shaft, use a piece of emery cloth
to reduce any high spots on the shaft.
Step 4: Fasten Unit in Place
Install housing mounting bolts and check bearing alignment.
Align the bearing units as closely as possible. Tighten mount-
ing bolts to recommended fastener torques. Check the shaft
for freedom of rotation by rotating shaft with hand in both
directions.
SM Gold Table 1
Recommended Shaft Tolerances
Nominal Bore Diameter Tolerance (Inches)
1/2 - 1 15/16 +0.0000 / -0.0005
2 - 2 7/16 +0.0000 / -0.0010