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Unit of Measure

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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 UK308D1

Housing Number

N/A FS308D1

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 9100 lbf40500 N40.50 kN

Static Load Rating

N/A 5400 lbf24000 N24.00 kN

Weight

N/A 8.200 lb3.700 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 1.2500 in31.750 mm

L

N/A 5.9063 in150.0 mm

J

N/A 4.4063 in112.0 mm

A1

N/A 0.6563 in17.0 mm

A2

N/A 0.5156 in13.0 mm

A3

N/A 0.3906 in10.0 mm

A5

N/A 2.9844 in76.000 mm

H3

N/A 4.5276 in115.0 mm

N

N/A 0.75 in19.0 mm

B1

N/A 1.8110 in46.000 mm

F

N/A 0.2913 in7.4 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