Double Row Super-Precision Cylindrical Roller Bearings NN 3028 K/SPC3W33

The NN 3028 K/SPC3W33 is a double-row cylindrical roller bearing with a 140mm bore and 210mm outer diameter, crafted from durable chrome steel. It handles combined loads up to 66825 lbf and runs smoothly at speeds up to 5000 RPM.

Its open design allows for easy lubrication with grease or oil, while the tapered bore ensures a secure fit. The bearing operates well in temperatures ranging from -30°C to 110°C.

This model is interchangeable with SKF bearings, making it a reliable choice for replacements. Ideal for high-precision applications like machine tools or industrial gearboxes where stability is key.

Weighing 6.15kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and eco-friendly use.

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Description

Features

Application

Q&A

Product Parameters

Part Number NN 3028 K/SPC3W33
Size 140 mm x 210 mm x 53 mm
Brand TFL
Interchangeable brand SKF
System of Measurement Metric
Roller Bearing Type Cylindrical
Bore Type Taper 1:12
For Load Direction Combined
Construction Double Row
Seal Type Open
Bore Dia 140 mm
Bore Dia Tolerance 0 to +0.025mm
Outer Dia 210 mm
Outer Dia Tolerance -0.015mm to 0
Width 53 mm
Width Tolerance -0.25mm to 0
Chamfer Dimension Outer Ring(r1,2)(min.) 2 mm
Chamfer Dimension Inner Ring(r3,4)(min.) 1.1 mm
Permissible Axial Displacement(max.) 2.5 mm
Ring Material Chrome Steel
Roller Material Chrome Steel
Dynamic Radial Load 66825 lbf
Static Radial Load 117000 lbf
Max Speed 5000 rpm
Lubrication Grease, Oil
Temperature Range -30° to 110 °C
RoHS Compliant
REACH Compliant
Weight 6.15 kg
Width Annular Lubrication Groove Outer Ring(B1) 8.75 mm
Diameter Lubrication Hole (outer Ring) (K) 4.5 mm

Double Row Super-Precision Cylindrical Roller Bearings NN 3028 K/SPC3W33 dimension drawing

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Features

Performance Features of NN 3028 K/SPC3W33 Bearing

NN 3028 K/SPC3W33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 66,825 lbf, making it suitable for heavy-duty applications.

The double-row cylindrical design ensures stability and precision in high-speed operations.
With a maximum speed of 5,000 rpm, it balances performance and durability.

NN 3028 K/SPC3W33 Bearing operates efficiently in temperatures from -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, reducing maintenance needs.

The tapered bore design simplifies installation and ensures secure fitting.
This bearing is ideal for applications requiring high precision and reliability.

Application

Industrial Uses of NN 3028 K/SPC3W33 Bearing
NN 3028 K/SPC3W33 Bearing is commonly used in heavy machinery like industrial gearboxes and large pumps, where its double-row design handles both radial and axial loads efficiently. The tapered bore ensures a secure fit, reducing slippage during high-speed operations.

What Makes NN 3028 K/SPC3W33 Bearing a Preferred Choice?
In precision applications such as machine tool spindles, NN 3028 K/SPC3W33 Bearing offers excellent stability due to its chrome steel construction. Its open design allows for easy lubrication, extending service life in demanding conditions.

Built for Heavy-Duty Use: NN 3028 K/SPC3W33 Bearing
NN 3028 K/SPC3W33 Bearing excels in wind turbine systems, where its high dynamic load capacity supports consistent performance. The grease or oil lubrication options make it adaptable to various environmental conditions.

Automotive vs Aerospace: Applications of NN 3028 K/SPC3W33 Bearing
In automotive transmissions, NN 3028 K/SPC3W33 Bearing provides reliable load distribution, while in aerospace, its precision ensures smooth operation in critical components. The metric sizing aligns with global industry standards.

Where Is NN 3028 K/SPC3W33 Bearing Used?
NN 3028 K/SPC3W33 Bearing is ideal for paper manufacturing equipment, where its robust design handles high radial loads. The temperature range of -30° to 110°C ensures reliability in varying operational conditions.