SKF

Bearing

21311 EK

Spherical roller bearing with tapered bore and relubrication features

SKF 21311 EK

From ~$61.16at Zoro

Zoro·Amazon

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Specifications

Bore (d)55.000 mm
Outer Diameter (D)120.000 mm
Width (B)29.000 mm
Seal TypeOpen
Bearing TypeSpherical Roller
Dynamic Load (C)159.000 kN
Static Load (C₀)166.000 kN
Speed — Grease5,600 RPM
Speed — Oil7,500 RPM
Temperature Range-30°C to 120°C
Rows1
ClearanceCN/Normal

Spherical roller bearings can accommodate heavy loads in both directions. They are self-aligning and accommodate misalignment and shaft deflections, with virtually no increase in friction or temperature. The design includes features to facilitate relubrication. The bearings can be used in a modular system, including housings, sleeves and nuts.

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