Double Row Super-Precision Cylindrical Roller Bearings NN 3040 K/SPC3W33

The NN 3040 K/SPC3W33 is a double-row cylindrical roller bearing with a 200mm bore and 310mm outer diameter, built from tough chrome steel. It handles combined loads up to 144900 lbf and runs smoothly at speeds up to 3000 RPM.

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

This model is interchangeable with SKF bearings, making it a practical choice for replacements. Ideal for heavy machinery or industrial equipment where precision and durability are key.

Weighing 21.6kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe use.

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Description

Features

Application

Q&A

Product Parameters

Part Number NN 3040 K/SPC3W33
Size 200 mm x 310 mm x 82 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 200 mm
Bore Dia Tolerance 0 to +0.030mm
Outer Dia 310 mm
Outer Dia Tolerance -0.018mm to 0
Width 82 mm
Width Tolerance -0.30mm to 0
Chamfer Dimension Outer Ring(r1,2)(min.) 2.1 mm
Chamfer Dimension Inner Ring(r3,4)(min.) 1.1 mm
Permissible Axial Displacement(max.) 3 mm
Ring Material Chrome Steel
Roller Material Chrome Steel
Dynamic Radial Load 144900 lbf
Static Radial Load 256500 lbf
Max Speed 3000 rpm
Lubrication Grease, Oil
Temperature Range -30° to 110 °C
RoHS Compliant
REACH Compliant
Weight 21.6 kg
Width Annular Lubrication Groove Outer Ring(B1) 12.2 mm
Diameter Lubrication Hole (outer Ring) (K) 6 mm

Double Row Super-Precision Cylindrical Roller Bearings NN 3040 K/SPC3W33 dimension drawing

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Features

Performance Features of NN 3040 K/SPC3W33 Bearing

NN 3040 K/SPC3W33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 144,900 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 3,000 rpm, it delivers reliable performance under demanding conditions.

NN 3040 K/SPC3W33 Bearing operates efficiently within a temperature range of -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 feature enhances the bearing’s alignment and overall performance in various applications.

Application

Industrial Uses of NN 3040 K/SPC3W33 Bearing
NN 3040 K/SPC3W33 Bearing is commonly used in heavy machinery like lathes and milling machines, where its double-row design handles high radial and axial loads. The tapered bore ensures a secure fit, reducing slippage during operation.

In wind turbines, NN 3040 K/SPC3W33 Bearing supports the main shaft, thanks to its robust chrome steel construction and grease lubrication. Its high dynamic load capacity makes it reliable in demanding environments.

For paper manufacturing equipment, NN 3040 K/SPC3W33 Bearing’s precision rollers ensure smooth rotation under heavy loads. The open seal design allows for easy maintenance, extending service life in dusty conditions.

Where Is NN 3040 K/SPC3W33 Bearing Used?
You’ll find NN 3040 K/SPC3W33 Bearing in gearboxes for marine applications, where its combined load capacity handles both thrust and radial forces. The metric sizing fits seamlessly with European engineering standards.

In steel rolling mills, NN 3040 K/SPC3W33 Bearing’s high-speed capability (up to 3000 rpm) ensures consistent performance. Its temperature range (-30° to 110°C) suits both hot and cold processing environments.

For printing presses, NN 3040 K/SPC3W33 Bearing’s precision reduces vibration, delivering sharp print quality. The lubrication holes simplify upkeep, minimising downtime.

Built for Heavy-Duty Use: NN 3040 K/SPC3W33 Bearing
NN 3040 K/SPC3W33 Bearing excels in mining equipment, where its static radial load capacity (256,500 lbf) withstands extreme pressures. The stainless steel rollers resist wear in abrasive conditions.

In construction cranes, NN 3040 K/SPC3W33 Bearing’s axial displacement tolerance (3 mm) accommodates slight misalignments. Its weight (21.6 kg) balances strength without overburdening the structure.

For railway axle boxes, NN 3040 K/SPC3W33 Bearing’s tapered bore ensures stability at high speeds. The grease lubrication option reduces friction, enhancing longevity.

Automotive vs Aerospace: Applications of NN 3040 K/SPC3W33 Bearing
In automotive test rigs, NN 3040 K/SPC3W33 Bearing handles combined loads during durability trials. Its 3000 rpm limit suits high-performance testing scenarios.

For aircraft landing gear systems, NN 3040 K/SPC3W33 Bearing’s precision rollers ensure smooth retraction. The chrome steel material meets stringent aerospace safety standards.

In electric vehicle powertrains, NN 3040 K/SPC3W33 Bearing’s low friction reduces energy loss. The open design allows for efficient cooling during prolonged use.