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Three Core Elements of Bearings for Coating Spraying Robots

Time: 2026-06-16 10:14:04Source: BOBI
With the advancement of AI technology, intelligent robots have been increasingly widely applied in large-scale industrial manufacturing and daily life scenarios.
A German collaborative robot manufacturer recently announced that the prototype of its coating spraying robot has passed testing and is ready for mass production. The company will procure constant-section thin-section bearings of models NJU045XP0 and NRAU5005 in bulk from Luoyang BOBI Precision Bearing Co., Ltd.

Robots cannot operate properly without well-matched bearings. Bearings enable mechanical arm rotation, joint deflection, precise positioning, posture adjustment and uniform spraying movements of coating spraying robots. The operational accuracy and stability of bearings directly affect spraying quality.

Core Elements of Bearings for Coating Spraying Robots

Coating Spraying Robots

Bearing solutions for coating spraying robots vary in performance, just like those for other robotic applications. This article analyzes why constant-section thin-section bearings stand out as the optimal choice for the robotics industry.

Weight and Dimension

It is widely acknowledged across the industry that constant-section thin-section bearings deliver superior performance with compact dimensions. Compared with conventional bearings, their dimensional characteristics bring prominent advantages to space-constrained and weight-sensitive robotic equipment, which is particularly critical for coating spraying robots. Most spraying robots adopt multi-axis joint structures with limited internal space, imposing strict restrictions on component size and weight.

The compact footprint allows installation in narrow spaces without compromising operating performance. Its uniform cross-section remains unchanged regardless of bore diameter expansion, saving installation space and perfectly fitting the compact structural design of robotic arm joints.

Additionally,thin-section bearings feature remarkable lightweight advantages. Lightweight construction reduces overall robot weight, lowers operational friction, improves long-term equipment efficiency and reliability, cuts energy consumption during arm movement, and guarantees high-precision spraying trajectories.

Sufficient Load-Bearing Capacity

Despite miniature size,thin-section bearings fully satisfy load requirements of coating spraying robots. Available in diverse structural designs, they accommodate various load conditions. Luoyang BOBI Precision Bearing Co., Ltd. manufactures deep groove ball, angular contact ball and four-point contact ball thin-section bearings, precisely catering to differentiated load scenarios of spraying robots.

Dual paired mounting is also applicable to withstand excessive working loads. This configuration enhances load capacity with marginal increases in space occupation and weight, suiting heavy-load arm operation and high-speed spraying conditions. Custom dual paired assembly solutions are available in accordance with actual load parameters.

Design Flexibility

Custom component modification is commonly required in robotic applications. Coating spraying robots demand customized bearings due to varied work pieces and operating environments. Multiple design options cover special clearance, load capacity and material requirements to fit diverse working conditions.

Customized thin-section bearings can be developed when standard specifications fail to meet special demands. The professional R&D team adjusts multiple parameters based on practical spraying operation scenarios:

Various cage types

Diverse dust covers and sealing assemblies

Multiple material selections

Custom dimensional specifications

Dual paired assembly configurations

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