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.NB035CP0
88.9 mm
104.78 mm
7.938 mm
0.123 kg
KDN.NB040XP0
101.595 mm
117.483 mm
7.938 mm
0.136 kg
KDN.NB055XP0
139.695 mm
155.583 mm
7.938 mm
0.19 kg
KDN.NB080CP0
203.195 mm
219.083 mm
7.938 mm
0.26 kg
KDN.NC070XP0
177.795 mm
196.858 mm
9.525 mm
0.33 kg
KDN.NC090XP0
228.595 mm
247.658 mm
9.525 mm
0.426 kg
KDN.ND040AR0
101.595 mm
127.008 mm
12.7 mm
0.363 kg
KDN.ND045XP0
114.295 mm
139.708 mm
12.7 mm
0.4 kg
KDN.ND055CP0
139.695 mm
165.108 mm
12.7 mm
0.48 kg
KDN.NA040AR0
101.595 mm
114.308 mm
6.35 mm
0.09 kg
KDN.ND065AR0
165.095 mm
190.508 mm
12.7 mm
0.56 kg
KDN.NA045XP0
114.295 mm
127.008 mm
6.35 mm
0.1 kg
KDN.ND090AR0
228.6 mm
254.008 mm
12.7 mm
0.77 kg
KDN.NA065XP0
165.095 mm
177.808 mm
6.35 mm
0.136 kg
KDN.ND120XP0
304.795 mm
330.208 mm
12.7 mm
1.02 kg
KDN.NA075XP0
190.495 mm
203.208 mm
6.35 mm
0.15 kg
KDN.ND180XP0
457.195 mm
482.608 mm
12.7 mm
1.58 kg
KDN.NAA10XL0
25.4 mm
34.93 mm
4.763 mm
0.01 kg
KDN.KG075AR0
190.5 mm
241.3 mm
25.4 mm
2.77 kg
KDN.KG100CP0
254.0 mm
304.8 mm
25.4 mm
3.58 kg