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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 UK309D1

Housing Number

N/A FS309D1

Housing Material

N/A Cast Iron

Housing Construction

N/A 1 Piece

End Type

N/A Closed

Performance

N/A Heavy Duty

Dynamic Load Rating

N/A 11900 lbf53000 N53.00 kN

Static Load Rating

N/A 7200 lbf32000 N32.00 kN

Weight

N/A 10.000 lb4.700 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, Closed End, UKFS Type - Dimensions

d

N/A 1.4375 in36.513 mm

L

N/A 6.3125 in160.0 mm

J

N/A 4.9219 in125.0 mm

A1

N/A 0.7188 in18.0 mm

A2

N/A 0.5469 in14.0 mm

A3

N/A 0.4375 in11.0 mm

A5

N/A 3.1562 in80.000 mm

H3

N/A 4.9213 in125.0 mm

N

N/A 0.7500 in19.0 mm

B1

N/A 1.9690 in50.000 mm

F

N/A 0.2913 in7.400 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