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SKF Cylindrical Roller Bearing: 311, 55 mm Bore, 120 mm OD, 29 mm Overall Wd - General Purpose Cylindrical Roller Bearings
SKFGeneral Purpose Cylindrical Roller Bearings

SKF Cylindrical Roller Bearing: 311, 55 mm Bore, 120 mm OD, 29 mm Overall Wd

The SKF Cylindrical Roller Bearing 311 is a general-purpose cylindrical roller bearing with an NJ design, featuring a 55 mm bore, 120 mm OD, and 29 mm overall width. It is constructed from alloy steel and has a brass…

SKU 3G-OTH-100847

Brand
SKF
Item
Cylindrical Roller Bearing: 311, 55 mm Bore, 120 mm OD, 29 mm Overall Wd
Category
General Purpose Cylindrical Roller Bearings
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Technical Specifications

SKF
Manufacturer Part Number
NJ 311 ECM
Type
Cylindrical, Brass
Bore
55 mm
OD
120 mm
Overall Wd
29 mm
Ring Material
Alloy Steel
System of Measurement
Metric
Bearing Industry Number
311
Cylindrical Bearing Design
NJ
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SKF Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SKF Cylindrical Roller Bearing 311 is a general-purpose cylindrical roller bearing with an NJ design, featuring a 55 mm bore, 120 mm OD, and 29 mm overall width. It is constructed from alloy steel and has a brass cage, with the manufacturer part number NJ 311 ECM. This metric bearing is identified by the bearing industry number 311.

Used in

Common applications for SKF
Heavy machinery gearboxes — SKF spherical roller bearings (e.g., 24056 CCK30/W33) for high radial load capacity
Electric motor repair — SKF cylindrical roller bearings (e.g., NJ 307 ECP/C3) for free axial expansion
Pump shaft sealing — SKF CRWA1 rotary shaft seals (e.g., 17100) for fluid retention in rotating equipment
Conveyor system maintenance — SKF wear sleeves (e.g., 99274) to protect shafts from seal abrasion
Machine tool spindles — SKF angular contact bearings (e.g., 7413 BGBM) for axial load support in duplex sets
Industrial fan assemblies — SKF spherical roller bearings (e.g., 23044 CC/W33) for misalignment accommodation

SKF Products

3G Electric supplies SKF general purpose cylindrical roller bearings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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SKF Cylindrical Roller Bearing: 311, 55 mm Bore, 120 mm OD, 29 mm Overall Wd, Cylindrical, Steel (MPN NJ 311 ECJ). Key specifications — Manufacturer Part Number: NJ 311 ECJ; System of Measurement: Metric; Bearing Industry Number: 311; Ring Material: Alloy Steel; Brand: SKF; Cylindrical Bearing Design: NJ.
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SKF Cylindrical Roller Bearing: 311, 55 mm Bore, 120 mm OD, 29 mm Overall Wd, Cylindrical, Steel (MPN NJ 311 ECJ). Key specifications — Manufacturer Part Number: NJ 311 ECJ; System of Measurement: Metric; Bearing Industry Number: 311; Ring Material: Alloy Steel; Brand: SKF; Cylindrical Bearing Design: NJ.
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SKF Cylindrical Roller Bearing: 312, 60 mm Bore, 130 mm OD, 31 mm Overall Wd, Cylindrical, Brass (MPN NJ 312 ECM). Key specifications — Manufacturer Part Number: NJ 312 ECM; System of Measurement: Metric; Bearing Industry Number: 312; Ring Material: Alloy Steel; Brand: SKF; Cylindrical Bearing Design: NJ.
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