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.KC050CP0
127.0 mm
146.05 mm
9.525 mm
0.263 kg
KDN.KC055AR0
139.7 mm
158.75 mm
9.525 mm
0.263 kg
KDN.KC055CP0
139.7 mm
158.75 mm
9.525 mm
0.268 kg
KDN.KC065XP0
165.1 mm
184.15 mm
9.525 mm
0.308 kg
KDN.KC070AR0
177.8 mm
196.85 mm
9.525 mm
0.336 kg
KDN.KC075CP0
190.5 mm
209.55 mm
9.525 mm
0.354 kg
KDN.KC110XP0
279.4 mm
298.45 mm
9.525 mm
0.526 kg
KDN.KC120AR0
304.8 mm
323.85 mm
9.525 mm
0.57 kg
KDN.KC140CP0
355.6 mm
374.65 mm
9.525 mm
0.69 kg
KDN.KC140XP0
355.6 mm
374.65 mm
9.525 mm
0.69 kg
KDN.KD040AR0
101.6 mm
127.0 mm
12.7 mm
0.363 kg
KDN.KD042CP0
107.95 mm
133.35 mm
12.7 mm
0.377 kg
KDN.KD050AR0
127.0 mm
152.4 mm
12.7 mm
0.445 kg
KDN.KD050CP0
127.0 mm
152.4 mm
12.7 mm
0.454 kg
KDN.KD060AR0
152.4 mm
177.8 mm
12.7 mm
0.522 kg
KDN.KD075CP0
190.5 mm
215.9 mm
12.7 mm
0.64 kg
KDN.KD090AR0
228.6 mm
254.0 mm
12.7 mm
0.767 kg
KDN.KD250AR0
635.0 mm
660.4 mm
12.7 mm
2.06 kg
KDN.KA080AR0
203.2 mm
215.9 mm
6.35 mm
0.163 kg
KDN.KA090AR0
228.6 mm
241.3 mm
6.35 mm
0.19 kg
KDN.KA120CP0
304.8 mm
317.5 mm
6.35 mm
0.254 kg
KDN.KAA10CL0
25.4 mm
34.925 mm
4.763 mm
0.01 kg
KDN.KAA10XL0
25.4 mm
34.925 mm
4.763 mm
0.0136 kg
KDN.KAA17XL0
44.45 mm
53.975 mm
4.763 mm
0.0227 kg