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Link-Belt FB3U2M30N (mfg part 10073879) is a 4-bolt flange ball bearing with a 1-15/16" bore, set screw locking, and a cast iron housing. This fixed (non-expansion) unit features a Buna single lip contact seal and a nylon retainer. It is rated for standard duty and has a dynamic load rating of 4390 lbf and a static load rating of 2530 lbf.
MODEL 10073879
Contact supplier for technical support on: 800-626-2120
$1,234.70 Each
Prices are subject to change
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Typically Ships in: 1 day
Returnable: Yes
Ability to Relubricate
Yes
Adjustment slot width (in)
Active in
Adjustment Slot Width (mm)
False mm
Available end cap
Y2196N
Base to centerline height (in)
3.75
Bearing Insert Material
52100 Bearing Steel
Bolt hole spacing (width) (in)
1.875
Bolt Size (in)
3/8
Bolt Size (mm)
M10
Bolt Spacing Height Direction (in)
1.25
Bore Diameter (mm)
30
Bore Shape
Straight
Cage Material
Molded fiber glass reinforced nylon
Cage Type
Ball Riding Retainer
Distance from Bearing Centerline to Mounting Bolt Hole Centers (in)
2.0625
Duty/Series
Standard Duty
Fixed vs. Expansion
Fixed
Foot Height (in)
0.38
Grease Fitting Thread Size
1/4-28
Housing coating
Powder coated
Housing Color
Black
Housing construction
One Piece
Housing material
Cast iron
Housing style
Flange block
Housing type
Flange, Bracket, Three Bolt
Housing width (in)
3.25
Inner Ring Outside Diameter (in)
1.587
Insert
UG2M30NL
Length Through Bore (in)
1.567
Locking Type
Set screw
Lubricant
Lithium Complex NLGI 2 Grease
Lubrication type
EXXON RONEX MP STD
Maximum Speed (RPM)
8000 RPM
Maximum Temperature (C)
107
Maximum Temperature (F)
225
Misalignment Capability
±2.0° Misalignment - Static Only
Misalignment Type
Static Only
Mounted clearance
C3 standard
Outer Ring Land Profile
Standard
Overall Height (in)
1.63
Overall Length (in)
5.38
Overall width (in)
3.25
Pilot Configuration
No Pilot
Primary seal
BUNA single lip contact seal
Radial Dynamic Load Capacity (lb)
4390 lb
Radial Static Load Capacity (lb)
2530 lb
Retainer type
Nylon
Rolling element
Ball Bearing
Seal type
Single Lip Contact Seal
Setscrew torque (in-lbs)
87-92
Size code
206
Vibration frequency fundamental train
0.0067 cps
Vibration frequency inner ring defect
0.0905 cps
Vibration frequency outer ring defect
0.0595 cps
Vibration frequency roller spin
0.0385 cps
Product Family: Ball Bearing; Line: Link-Belt Mounted
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.
