(dimensions in mm)

Bearing Type - N

Bore Dia (d) - 55.0000

Outer Dia (D) - 120.0000

Width (B) - 29.0000

Radius (min) (rs) - 2.000

Dynamic Load Rating (Cr) - 109,000

Static Load Rating (Cor) - 109,000

Max Speed (Grease) (X1000 RPM) - 5

Max Speed (Oil) (X1000 RPM) - 6

Max. Shaft Shoulder Dia. Inner (Li) - 70.5

Min. Housing Shoulder Dia., Outer (Lo) - 104.5

Weight (g) - 1,536.00

Precision - RBEC 1

Standard Clearance - C0

Material - 52100 Chrome steel, or equivalent

Unless otherwise specified, the internal radial clearance is "C0" or "C Normal".

Suffix definitions are listed in the Nomenclature Technical document.

This bearing is also available with a retaining ring groove in the outer race, and it can be supplied with the ring (suffix NR) or without the ring (suffix N). Please see the Technical Information Sheet for the groove and ring dimensions.

• Model Number:N311
• Inner Diameter：55mm Outer Diameter：120mm Width：29mm
• Type：Cylindrical Roller Bearings
• Update date：2025-12-16
• Application:equipment,container finishing,agrochemical,key lock,medical equipment,wire industry,Film machine,tube,medical equipment,fruit and vegetable processing,Blood coagulation reagent
• Similar models:AST NU311ETN CX NP311E CYSD NUP311E CX NU3311 FBJ NU2311 NTN NUP2311 CYSD NJ2311E NKE NJ311-E-M6 NKE NU311-E-M6 NKE NUP2311-E-M6
• BEARING POWER International Trading Co.,Ltd. specialize in N311 products，there is large inventory of AST N311 . We has been built up long-term cooperation with AST company, could make a bulk order of the N311 Which AST N311 is the most authentic, must choose BEARING POWER, what a whole variety, reasonable price, guaranteed quality, prompt delivery via Global express.Any inquiry, never hesitate to E-mail or call +86-022-58519721 to contact us.

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