• 2 3/4" Mounted Ball Bearing, Heavy Duty Expansion Unit, Cast Iron 2-Bolt Pillow Block, Setscrew Locking, Clearance Seal

Dimensions

Base to Center Height (in)	4 in
Bolt Size (in)	7/8 in
Bore Diameter (in)	2.75 in
Overall Height (in)	7.94 in
Length Through Bore (in)	3.81 in
Overall Length (in)	14.63 in
Overall Width (in)	3.81 in
Base Width (in)	3.75 in
Foot Height (in)	1.63 in
Centerline to Outermost Bearing Face (in)	2.25 in
Bolt Spacing (in)	11.81 in

Technical Specifications

Housing Color	Black
Outer Ring Land Profile	Standard
Housing Base	Semi-Solid
Misalignment Type	Static Only
Housing Style	Pillow Block
Slot Length (in)	1.63 in
Housing Type	Pillow Block, Two Bolt
Housing Construction	One Piece
Seal Type	Labryinth Seal
Cage Material	Molded fiber glass reinforced nylon
Rolling Element	Ball Bearing
Bore Shape	Straight
Ability to Relubricate	Yes
Locking Collar Outside Diameter (in)	4.74 in
Setscrew Torque (in-lbs)	620-680 in/lbs
Locking Device Kit	U3445S
Maximum Speed (RPM)	3950 rpm
Housing Coating	Powder Coated
Bearing Type	Heavy Duty
Dynamic Load Rating (lb)	23,420 lb
Vibration Frequency Roller Spin	0.0342 cps
Base Length (in)	14.63 in
Fixed vs. Expansion	Expansion
Bearing Insert Material	52100 Bearing Steel
Misalignment Capability	±2.0° Misalignment - Static Only
Shaft Locking Type	Set Screw
Bearing Brand	LINK-BELT 300 SERIES HD BALL
Vibration Frequency Fundamental Train	0.0063 cps
End Cap	U3446C
Lubricant	EXXON RONEX MP STD
Max Operating Temperature (C)	107 °C
Expansion Capability (in)	0.22 in
Insert	UG344L
Radial Clearance	C3 STANDARD
Inner Ring Outside Diameter (in)	3.732 in
End Cap Available	Yes
Max Operating Temperature (F)	225 °F
Grease Fitting Thread Size	1/8 NPT
Cage Type	Ball Riding Retainer
Housing Material	Cast Iron
Expansion Lock Plug	B225728A
Size Code	344
Vibration Frequency Inner Ring Defect	0.0820 cps
Static Load Rating (lb)	15,300 lb
Vibration Frequency Outer Ring Defect	0.0513 cps

General Specifications

UPC	662327735111
Weight	42.00 LB
Packaged Length	8.38 IN
Packaged Width	5.25 IN
Packaged Height	14.63 IN
HTC	8483208040
Country of Origin	Mexico