Cylindrical roller bearings

SKF Cylindrical Roller Bearings are bearings designed to withstand heavy radial loads and high speeds and are widely used in various industrial fields. Its main features include: Design diversity: SKF cylindrical roller bearings are available in a variety of designs and sizes, including single-row and double-row full roller bearings, as well as bearings with and without cages. These designs enable them to adapt to different application requirements. Load capacity: These bearings mainly bear radial loads and have a large load capacity. The friction between the rolling element and the ring rib is small, suitable for high-speed rotation. Application scenarios: SKF cylindrical roller bearings are suitable for various industrial fields, such as construction machinery, machine tools, plastic machinery and conveying machinery. They excel in heavy-load and high-speed applications. Special designs: SKF also offers Cooper split cylindrical roller bearings, which are particularly suitable for hard-to-access applications such as crankshafts, simplifying installation, removal and maintenance. Materials and manufacturing processes: SKF cylindrical roller bearings use high-quality materials and precision manufacturing processes to ensure stable performance under high loads and high speeds. Specific models and application examples 100 Series: Suitable for light-load applications with high operating speeds. 03/03E Series: Designed for extreme load conditions NNCL, NNCF and NNC bearings: These models have different structures and features for different axial positioning needs.

SKF Cylindrical Roller Bearings are precision-engineered components designed to deliver high radial load capacity, rigidity, and durability in demanding industrial applications. Featuring cylindrical rollers with optimized line contact, these bearings excel in machinery requiring high-speed operation, shock resistance, and precise alignment. SKF’s advanced engineering ensures superior performance in industries such as automotive, energy, mining, and manufacturing.

Key Technical Specifications of SKF Cylindrical Roller Bearings

Design Features of SKF Cylindrical Roller Bearings

Roller Arrangement:

Single-Row (N, NU, NJ, NUP): Axial displacement capabilities.

Double-Row (NN, NNU): Enhanced radial load capacity and rigidity.

Full-Complement (NCF, NCJ): Maximum roller count for extreme radial loads.

Cage Designs:

Machined Brass (J): High-speed stability and low friction.

Pressed Steel (PP): Cost-effective for moderate loads.

Polyamide (P): Lightweight, corrosion-resistant.

Sealing Solutions:

RS1 Rubber Seals: IP65 protection against contaminants.

Labyrinth Shields (VA405): Non-contact design for high-temperature applications.

Competitive Advantages of SKF Cylindrical Roller Bearings

  1. Exceptional Load Capacity

Optimized roller/raceway contact for even stress distribution.

Dynamic load ratings 15–20% higher than ISO standards.

  1. Precision & Speed

ABEC 3/5 tolerances (standard) with optional ABEC 7/9 for ultra-precise applications.

Low-friction cages reduce heat generation at high speeds.

  1. Durability

SKF Explorer® steel extends service life in harsh conditions.

Robust sealing (IP69K) for dust, moisture, and chemical resistance.

  1. Customization

Modified internal clearances (C3/C4) for thermal expansion.

Special coatings (DLC, CrN) for extreme environments

Technical Support of SKF Cylindrical Roller Bearings

Online Tools: SKF Bearing Selector with load/speed calculators.

3D CAD Models: Available in STEP, IGES, and Parasolid formats.

Engineering Services: Custom solutions for OEM applications.

Global Availability: Fast delivery from SKF distribution centers.

SKF Cylindrical Roller Bearings are the pinnacle of performance, precision, and reliability for industries requiring robust radial load support. With advanced materials, smart design features, and global technical support, SKF ensures optimal machinery uptime and efficiency.

 

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Designation Bore diameter Outside diameter Width Basic dynamic load rating Limiting speed Mass
NU 321 ECJ/C3
105.0 mm
225.0 mm
49.0 mm
500.0 kN
3800.0 r/min
8.56 kg
NJ 2322 ECML
110.0 mm
240.0 mm
80.0 mm
780.0 kN
5300.0 r/min
18.3 kg
NJ 2336 ECML
180.0 mm
380.0 mm
126.0 mm
1610.0 kN
3200.0 r/min
Single row cylindrical roller bearing, NJ design
NU 1056 ML
280.0 mm
420.0 mm
65.0 mm
765.0 kN
2600.0 r/min
31.0 kg
NJ 2892 ECMA
460.0 mm
580.0 mm
72.0 mm
1060.0 kN
1400.0 r/min
47.7 kg
NU 312 ECP
60.0 mm
130.0 mm
31.0 mm
173.0 kN
6700.0 r/min
1.77 kg
NCF 1876 V
380.0 mm
480.0 mm
46.0 mm
627.0 kN
670.0 r/min
18.9 kg
NJ 234 ECML
170.0 mm
310.0 mm
52.0 mm
695.0 kN
3800.0 r/min
17.9 kg
NUP 312 ECJ
60.0 mm
130.0 mm
31.0 mm
173.0 kN
6700.0 r/min
1.86 kg
NNF 5008 ADB-2LSV
40.0 mm
68.0 mm
38.0 mm
85.8 kN
2000.0 r/min
0.529 kg
N 322 ECM
110.0 mm
240.0 mm
50.0 mm
530.0 kN
3400.0 r/min
11.4 kg
NJ 29/710 ECMA
710.0 mm
950.0 mm
140.0 mm
3740.0 kN
800.0 r/min
302.0 kg
NU 306 ECM
30.0 mm
72.0 mm
19.0 mm
58.5 kN
12000.0 r/min
0.41 kg
NU 307 ECJ
35.0 mm
80.0 mm
21.0 mm
75.0 kN
11000.0 r/min
0.484 kg
NU 240 ECM
200.0 mm
360.0 mm
58.0 mm
850.0 kN
2200.0 r/min
26.5 kg
319430 B-2LS
150.0 mm
210.0 mm
80.0 mm
484.0 kN
600.0 r/min
NNCF 5040 CV
200.0 mm
310.0 mm
150.0 mm
1680.0 kN
1200.0 r/min
40.1 kg
NU 236 ECM
180.0 mm
320.0 mm
52.0 mm
720.0 kN
2400.0 r/min
18.7 kg
NU 308 ECJ
40.0 mm
90.0 mm
23.0 mm
93.0 kN
9500.0 r/min
0.675 kg
NCF 2922 CV/C3
110.0 mm
150.0 mm
24.0 mm
134.0 kN
2400.0 r/min
1.26 kg
316201
1120.0 mm
1360.0 mm
104.0 mm
1650.0 kN
280.0 kg
NJ 203 ECP/C3
17.0 mm
40.0 mm
12.0 mm
20.0 kN
22000.0 r/min
0.07 kg
NU 1014 ECP/C4VA3091
0.624 kg
N 221 ECP
105.0 mm
190.0 mm
36.0 mm
300.0 kN
4300.0 r/min
3.88 kg