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Ordering Options

N/A Contact NTN Customer Relations

Technical Specifications

Type

N/A 4-Bolt Square Flanged Unit

Bearing Type

N/A Ball Bearing

Locking Device

N/A Adapter

Seal Type

N/A Contact

Seal Material

N/A Nitrile Rubber

Bearing Number

N/A UK311D1

Housing Number

N/A FS311D1

Housing Material

N/A Cast Iron

Housing Construction

N/A 1 Piece

End Type

N/A Open

Performance

N/A Heavy Duty

Dynamic Load Rating

N/A 16100 lbf71500 N71.50 kN

Static Load Rating

N/A 10100 lbf45000 N45.00 kN

Weight

N/A 16.000 lb7.300 kg

Operating Temperature Range

N/A -40 to 250 ºF-40 to 120 ºC

Lubrication

N/A Relubricatable

Dimensional Specifications


Four Bolt Square Flanged Unit, Cast Housing, Adapter, Cast Dust Cover, Open End, UKFS Type - Dimensions

d

N/A 1.8750 in47.625 mm

L

N/A 7.2813 in185.0 mm

J

N/A 5.5156 in140.0 mm

A1

N/A 0.7813 in20.0 mm

A2

N/A 0.6719 in17.0 mm

A3

N/A 0.5156 in13.0 mm

A5

N/A 3.6562 in93.000 mm

H3

N/A 5.9055 in150.0 mm

N

N/A 0.9063 in23.0 mm

B1

N/A 2.3230 in59.000 mm

F

N/A 0.3346 in8.500 mm

Notes

N/A Sales drawing reflects "Bore Size w/o Adapter". They do not show the "d"dimension, which is the bore size with adapter