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SKF NU 309 ECJ General Purpose Cylindrical Roller Bearing - General Purpose Cylindrical Roller Bearings
SKFGeneral Purpose Cylindrical Roller Bearings

SKF NU 309 ECJ General Purpose Cylindrical Roller Bearing

The SKF Cylindrical Roller Bearing: 309 is a general-purpose cylindrical roller bearing with an NU design, featuring a 45 mm bore, 100 mm OD, and 25 mm overall width. It is constructed from alloy steel and uses…

SKU 3G-OTH-101294

Also listed as: NU309ECJ · NU-309-ECJ

Brand
SKF
Item
NU 309 ECJ General Purpose Cylindrical Roller Bearing
Part Number
NU 309 ECJ
Category
General Purpose Cylindrical Roller Bearings
Available to Order
Also known as:NU 309 ECJSKF
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Technical Specifications

SKF
Manufacturer Part Number
NU 309 ECJ
Type
Cylindrical, Steel
Bore
45 mm
OD
100 mm
Overall Wd
25 mm
Ring Material
Alloy Steel
System of Measurement
Metric
Bearing Industry Number
309
Cylindrical Bearing Design
NU

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SKF Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SKF Cylindrical Roller Bearing: 309 is a general-purpose cylindrical roller bearing with an NU design, featuring a 45 mm bore, 100 mm OD, and 25 mm overall width. It is constructed from alloy steel and uses metric measurements, with the manufacturer part number NU 309 ECJ and bearing industry number 309.

Frequently Asked Questions

What is the SKF Cylindrical Roller Bearing 309 used for?

The SKF Cylindrical Roller Bearing 309 (NU 309 ECJ) is used in industrial machinery requiring high radial load capacity and moderate speed. Common applications include gearboxes, pumps, compressors, electric motors, and conveyor systems. Its NU design allows axial displacement of the shaft relative to the housing, accommodating thermal expansion.

What are the specifications of the SKF Cylindrical Roller Bearing 309?

The SKF Cylindrical Roller Bearing 309 has a 45 mm bore, 100 mm OD, and 25 mm overall width. It is made of alloy steel, uses metric measurements, and features an NU cylindrical bearing design. The manufacturer part number is NU 309 ECJ, and the bearing industry number is 309.

Where to buy the SKF Cylindrical Roller Bearing 309 worldwide?

You can source the SKF Cylindrical Roller Bearing 309 (NU 309 ECJ) worldwide through 3G Electric. As a global industrial equipment distributor since 1990, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

How to select the correct SKF cylindrical roller bearing for an application?

To select the correct SKF cylindrical roller bearing, match the bore (45 mm), OD (100 mm), and width (25 mm) to your shaft and housing dimensions. Verify the NU design allows axial shaft movement. Consider load ratings, operating temperature, and lubrication requirements. Consult SKF's technical documentation for specific application guidance.

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
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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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