• 2 11/16" Mounted Ball Bearing, Heavy Duty Expansion Unit, Cast Iron 2-Bolt Pillow Block, Setscrew Locking, Clearance Seal, Steel Retainer, High Temp Grease, C4 Clearance

Dimensions

Base Width (in)	3.75 in
Foot Height (in)	1.63 in
Bore Diameter (in)	2.6875 in
Base to Center Height (in)	4 in
Overall Length (in)	14.63 in
Overall Height (in)	7.94 in
Bolt Size (in)	7/8 in
Overall Width (in)	3.81 in
Length Through Bore (in)	3.81 in
Bolt Spacing (in)	11.81 in
Centerline to Outermost Bearing Face (in)	2.25 in

Technical Specifications

Housing Style	Pillow Block
Housing Construction	One Piece
Misalignment Type	Static Only
Housing Base	Semi-Solid
Slot Length (in)	1.63 in
Housing Color	Black
Housing Type	Pillow Block, Two Bolt
Bore Shape	Straight
Rolling Element	Ball Bearing
Cage Material	Steel
Seal Type	Labryinth Seal
Outer Ring Land Profile	Standard
Ability to Relubricate	Yes
Setscrew Torque (in-lbs)	620-680 in/lbs
Locking Collar Outside Diameter (in)	4.74 in
Insert	UG343JL4CC4
Static Load Rating (lb)	15,300 lb
Grease Fitting Thread Size	1/8 NPT
Vibration Frequency Fundamental Train	0.0063 cps
End Cap Available	Yes
Radial Clearance	C4 INCREASED
Max Operating Temperature (C)	204 °C
Housing Material	Cast Iron
Max Operating Temperature (F)	400 °F
Lubricant	DOW CORNING DC44 HT
Cage Type	Ball Riding Retainer
Fixed vs. Expansion	Expansion
Expansion Capability (in)	0.22 in
Expansion Lock Plug	B225728A
Vibration Frequency Inner Ring Defect	0.0820 cps
Maximum Speed (RPM)	3950 rpm
Vibration Frequency Outer Ring Defect	0.0513 cps
Inner Ring Outside Diameter (in)	3.732 in
Base Length (in)	14.63 in
Bearing Brand	LINK-BELT 300 SERIES HD BALL
Size Code	344
Vibration Frequency Roller Spin	0.0342 cps
Misalignment Capability	±2.0° Misalignment - Static Only
Locking Device Kit	U3445S
End Cap	U3446C
Bearing Type	Heavy Duty
Bearing Insert Material	52100 Bearing Steel
Shaft Locking Type	Set Screw
Housing Coating	Powder Coated
Dynamic Load Rating (lb)	23,420 lb

General Specifications

UPC	793699503302
Weight	41.20 LB
Packaged Length	8.38 IN
Packaged Width	5.25 IN
Packaged Height	14.63 IN
HTC	8483208040
Country of Origin	Mexico