• 3 3/16" Mounted Spherical Roller Bearing, Cast Iron 4-Bolt Split Pillow Block, Expansion Unit, Adapter Mounted, Triple-Ring Metal Labyrinth Seal

Dimensions

Bore Diameter (in)	3.1875 in
Base Width (in)	3.88 in
Overall Height (in)	7.94 in
Base to Center Height (in)	4 in
Foot Height (in)	1.31 in
Overall Length (in)	13.75 in
Overall Width (in)	5.88 in
Bolt Size (in)	5/8 in
Base Length (in)	13.75 in
Bolt Spacing Width (in)	2.13 in
Centerline to Shaft Face for Closed End Unit (in)	1.75 in
Bolt Spacing Max (in)	11.63 in
Expansion Capability (in)	0.38 in
Bolt Spacing Min (in)	10.38 in

Technical Specifications

Rolling Element	Spherical Roller
Housing Construction	Split
Static Load Rating (lb)	81,500 lb
Radial Clearance	C3 STANDARD
Cage Material	Bronze
Housing Material	Cast Iron
Housing Style	Pillow Block
Shaft Locking Type	Adapter Mount
Radial Dynamic Load Capacity (lb)	64,000 lb
Fixed/Expansion	Expansion
End Cap	LB68526R
Product	PLB6800F
Housing Color	Black
Misalignment Type	Dynamic
Series	Split-housed Pillow Blocks
Housing Type	Pillow Block, Four Bolt, SAF Style
Seal Type	Labyrinth Seal
Maximum Speed Using Oil (RPM)	3,000 rpm
Ability to Relubricate	Yes
Seal Kit	LB68513R (qty 2)
Maximum Speed Using Grease (RPM)	2,600 rpm
Cap Bolt Torque (ft-lbs)	90-100 ft/lbs
Housing Kit	PLB6851FR02
Locking Device Kit	H318051
Primary Seal	LER TRIPLE RING SEAL
Insert	22218LBKC3
Size Code	22218
Grease Fitting Thread Size	1/8 NPT
Housing Coating	POWDER COATED
Vibration Frequency Outer Ring Defect	0.127 cps
Max Operating Temperature (C)	107 °C
Vibration Frequency Inner Ring Defect	0.173 cps
Max Operating Temperature (F)	225 °F
Misalignment Capability	±0.5° Misalignment - Dynamic
Vibration Frequency Roller Spin	0.052 cps
Vibration Frequency Fundamental Train	0.007 cps

General Specifications

UPC	662327112837
Weight	52.00 LB
HTC	8483208080
Country of Origin	China