Thin section bearings

SKF Thin Section Bearings are ultra-slim, high-precision bearings designed for applications where space and weight constraints are critical. These bearings feature a unique cross-section design that maintains high load capacity while minimizing radial space requirements. They are widely used in robotics, aerospace, medical equipment, semiconductor manufacturing, and other high-tech industries where compactness and precision are essential.

SKF Thin Section Bearings are specially designed bearings designed to meet high-precision, high demand application scenarios. Their main features include reducing weight, minimizing space occupation, lowering friction, enhancing design flexibility, and achieving excellent operational accuracy. SKF Thin Section Bearings typically adopt a design with large inner holes and small cross-sections, making the overall structure of the bearing more compact. It can significantly reduce the external dimensions of the equipment and lower production costs without affecting performance

application area

SKF Thin Section Bearings are widely used in multiple fields, including:

Aerospace: used for the manufacturing of high-precision equipment such as satellites and rockets

Robots: providing flexible and reliable support for the joints of robots

Medical system: ensuring the stable and accurate operation of medical equipment and the safety of patients

product type

SKF Thin Section Bearings offers a diverse range of product types, including:

Reali Slim series: Based on a single cross-sectional design, the cross-section remains constant as the inner diameter increases, greatly saving space and weight. This series includes TT turntable bearings, suitable for important applications that require precise positioning and lightweight design

BB series: Deep groove ball bearings, suitable for applications that require miniaturization and lightweighting, with ultra-thin bearing cross-sections and low friction, high-speed characteristics

KT series: tapered roller bearings, suitable for thin applications that require high load-bearing capacity and multiple advantages

Design Features

Ultra-Thin Cross-Section: Radial cross-section as low as 3.5% of the bore diameter

Four Standard Series:

K Series (Radial Contact): Standard deep groove design

C Series (Angular Contact): For combined radial and axial loads

X Series (Four-Point Contact): High moment load capacity

E Series (Extra Thin): Lightest possible design

Material Options:

Standard: High-carbon chromium steel (AISI 52100)

Stainless Steel (AISI 440C): Corrosion-resistant for medical/food applications

Hybrid Ceramic: Si3N4 balls for high-speed, non-magnetic environments

Cage Types:

Machined Brass (J): High-speed stability

Polyamide (P): Lightweight, low friction

Stainless Steel (S): Corrosion resistance

Competitive Advantages

  1. Space & Weight Optimization

40% thinner than standard bearings with equivalent bore size

Weight reduction by up to 60% compared to conventional designs

  1. Precision & Rigidity

ABEC 7/9 options for ultra-precise motion control

Low friction torque (as low as 0.001 Nm)

  1. Versatility in Harsh Environments

Vacuum-compatible variants for semiconductor equipment

Non-magnetic options for MRI and scientific instruments

  1. Long Service Life

L10 life up to 50,000 hours under optimal conditions

Solid Oil® lubrication for maintenance-free operation

SKF Thin Section Bearings represent the pinnacle of compact, high-precision bearing technology. Their ultra-slim design, high load capacity, and precision engineering make them ideal for applications where space and weight savings are critical. With options for extreme environments, high speeds, and maintenance-free operation, SKF provides reliable solutions for the most demanding industries.

 

 

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Designation Bore diameter Outside diameter Width Limiting speed Mass
KDN.NA030AR0
76.2 mm
88.905 mm
6.35 mm
0.0635 kg
KDN.NA047CP0
120.645 mm
133.358 mm
6.35 mm
0.1 kg
KDN.NA055XP0
139.695 mm
152.408 mm
6.35 mm
0.11 kg
KDN.NAA10AG0
25.4 mm
34.93 mm
4.763 mm
0.01 kg
KDN.NAA15AG0
38.1 mm
47.63 mm
4.763 mm
0.0172 kg
KDN.NB020AR0
50.8 mm
66.68 mm
7.938 mm
0.08 kg
KDN.NB050AR0
126.995 mm
142.883 mm
7.938 mm
0.17 kg
KDN.NB050XP0
126.995 mm
142.883 mm
7.938 mm
0.17 kg
KDN.NB060CP0
152.395 mm
168.283 mm
7.938 mm
0.2 kg
KDN.NB070XP0
177.795 mm
193.683 mm
7.938 mm
0.23 kg
KDN.KF080AR0
203.2 mm
241.3 mm
19.05 mm
1.64 kg
KDN.KF080XP0
203.2 mm
241.3 mm
19.05 mm
1.59 kg
KDN.KF090AR0
228.6 mm
266.7 mm
19.05 mm
1.79 kg
KDN.KF110XP0
279.4 mm
317.5 mm
19.05 mm
2.18 kg
KDN.KF120AR0
304.8 mm
342.9 mm
19.05 mm
2.36 kg
KDN.KF120CP0
304.8 mm
342.9 mm
19.05 mm
2.36 kg
KDN.KF120XP0
304.8 mm
342.9 mm
19.05 mm
2.36 kg
KDN.KF140CP0
355.6 mm
393.7 mm
19.05 mm
2.27 kg
KDN.KF160AR0
406.4 mm
444.5 mm
19.05 mm
3.08 kg
KDN.KF180AR0
457.2 mm
495.3 mm
19.05 mm
3.48 kg
KDN.KF180CP0
457.2 mm
495.3 mm
19.05 mm
3.58 kg
KDN.KF180XP0
457.2 mm
495.3 mm
19.05 mm
3.58 kg
KDN.KG040CP0
101.6 mm
152.4 mm
25.4 mm
1.63 kg
KDN.KG047AR0
120.65 mm
171.45 mm
25.4 mm
1.89 kg