Double Row Super-Precision Cylindrical Roller Bearings NN 3038 K/SPW33

The NN 3038 K/SPW33 is a double-row cylindrical roller bearing with a 190mm tapered bore and 290mm outer diameter, built from sturdy chrome steel. It handles combined loads up to 133650 lbf and runs smoothly at speeds up to 3000 RPM.

Its open design allows easy lubrication with grease or oil, while the double-row construction provides extra stability. 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-duty applications like industrial gearboxes or machine tools where precision and durability are key.

Weighing 17.1kg, it’s robust yet manageable for its size. Compliant with RoHS and REACH standards for safe and reliable use.

The tapered bore ensures a secure fit, while the lubrication groove simplifies maintenance. Suitable for high-precision machinery requiring smooth operation under heavy loads.

Get A Free Quote

Description

Features

Application

Q&A

Product Parameters

Part Number NN 3038 K/SPW33
Size 190 mm x 290 mm x 75 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 190 mm
Bore Dia Tolerance 0 to +0.030mm
Outer Dia 290 mm
Outer Dia Tolerance -0.018mm to 0
Width 75 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 133650 lbf
Static Radial Load 243000 lbf
Max Speed 3000 rpm
Lubrication Grease, Oil
Temperature Range -30° to 110 °C
RoHS Compliant
REACH Compliant
Weight 17.1 kg
Width Annular Lubrication Groove Outer Ring(B1) 11.35 mm
Diameter Lubrication Hole (outer Ring) (K) 6 mm

Double Row Super-Precision Cylindrical Roller Bearings NN 3038 K/SPW33 dimension drawing

Download DWG Download PDF

Features

Performance Features of NN 3038 K/SPW33 Bearing

NN 3038 K/SPW33 Bearing is built with chrome steel rings and rollers, offering high resistance to combined loads.
Its dynamic radial load capacity reaches 133650 lbf, making it suitable for heavy-duty applications.

The double-row design enhances stability and load distribution, ensuring smooth operation.
With a maximum speed of 3000 rpm, it balances performance and durability in demanding conditions.

NN 3038 K/SPW33 Bearing operates efficiently in temperatures ranging from -30° to 110°C.
Its open design allows for easy lubrication with grease or oil, reducing maintenance needs.

The tapered bore design ensures secure fitting, minimising slippage during operation.
Precision engineering guarantees reliable performance in high-speed and high-load scenarios.

Application

Industrial Uses of NN 3038 K/SPW33 Bearing
NN 3038 K/SPW33 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 3038 K/SPW33 Bearing a Preferred Choice?
In wind turbines, NN 3038 K/SPW33 Bearing’s high dynamic load capacity makes it ideal for supporting rotor shafts under varying wind conditions. Its chrome steel construction also resists wear in harsh outdoor environments.

Built for Heavy-Duty Use: NN 3038 K/SPW33 Bearing
NN 3038 K/SPW33 Bearing excels in steel mills, where its open design allows for easy lubrication under extreme heat and heavy loads. The grease or oil lubrication options provide flexibility for different operating conditions.

Automotive vs Aerospace: Applications of NN 3038 K/SPW33 Bearing
In automotive testing rigs, NN 3038 K/SPW33 Bearing ensures precise alignment for accurate performance measurements. For aerospace applications, its high-speed capability and stability make it suitable for turbine engine components.