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Ra Series High Accuracy Anti-Deflection Bearings with Superior Rigidity & Seamless Rotation Performance
US$1.00
1 Piece
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableRolling Body
Roller BearingsThe Number of Rows
SingleModel NO.
RAOuter Dimension
Multiple Sizes AvailableMaterial
High Carbon Chromium Bearing SteelSpherical
Non-Aligning BearingsLoad Direction
Combined LoadSeparated
Yes (Outer Ring Is Split Into Two Sections)Transport Package
StardardSpecification
StardardTrademark
RockOrigin
LuoyangHS Code
8482500090Production Capacity
5000 Pieces/YearKey features
Compact Lightweight Design: Reduced wall thickness compared to RB type, ideal for robotic arms and lightweight components.
Superior Rigidity: High accuracy anti-deflection performance with seamless rotation for precise industrial applications.
Split Outer Ring Structure: Outer ring split into two sections fastened by rivets, facilitating installation and maintenance.
High Carbon Steel Material: Constructed from high carbon chromium bearing steel for durability and load-bearing capacity.
Versatile Load Capacity: Designed to withstand combined loads, suitable for rotary joints in robots and manipulators.
Multiple Size Options: Available in various models from RA5008 to RA20013 to fit different space requirements.
OEM/ODM Support: Manufacturer offers full customization, minor customization, and flexible design options.
Direct Face Mounting: Integrated ring designs available for direct face mounting, eliminating need for separate flanges.
Company profile
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 1 year CertifiedNearest Port: Qingdao PortAverage Response Time: ≤1.88h
AI-Powered supplier vetting
SummaryLuoyang Rock Precision Engineering Co., Ltd. is a China-based limited company established in 2022 with 19 employees. Its stated product scope includes bearings, machine tools, robots, and port machinery, and its products are reportedly used in construction machinery, mining equipment, CNC machine tools, wind power, robotics, and heavy industry. The supplier reports flexible customization and OEM service for well-known brands, but no SDK availability. Manufacturing resources include one production line and two export-trade staff, with one experienced export employee. Service-control weaknesses are documented: no written procedures or records for supplier-service assessment, corrective and preventive actions, or complaint handling. Finished products are checked by packing staff, and continuous quantity reconciliation is not performed for each batch. Overseas warehouse, showroom, agent/branch, and offline trade-show capabilities are absent. Certification holdings, verified customer cases, and sufficient...
After-Sales capabilityFinished products are checked by packing staff, but the supplier has no written procedures or records for effective service-capability assessment, corrective and preventive actions, or customer-complaint handling. It also has no overseas warehouse, showroom, agent or branch, and has not participated in offline trade shows, indicating limited documented and overseas service infrastructure.
R&D capabilityThe company describes 20 years of continuous innovation and modern precision technology, and its products are used in technically demanding sectors including CNC machine tools, wind power, robotics, and heavy industry. However, it explicitly reports no available SDK, so software-development integration capability is not demonstrated.
Production capacityThe supplier reports one manufacturing production line and one year of export experience, supported by two export-trade staff and one experienced export employee. It does not perform continuous quantity reconciliation for every batch or mass-production run, which is a stated production-control weakness.
Customization capabilityThe supplier explicitly reports customization from samples, designs, full customization, minor customization, and flexible customization. It also states that it provides OEM services for well-known brands, supporting a positive assessment of customization capability.
Product Q&A
Q:What is the main advantage of RA series over RB series?
A:
The RA series features reduced wall thickness on both inner and outer rings, making it more compact and lightweight than the standard RB type.
Q:What materials are used for these bearings?
A:
They are made from high carbon chromium bearing steel, ensuring high durability and resistance to deflection.
Q:What are the typical applications for RA crossed roller bearings?
A:
They are ideal for robotic arms, industrial manipulators, and rotary joints where lightweight and compact space are critical.
Q:How is the outer ring structured?
A:
The outer ring is split into two axial sections (upper and lower) and fastened together using rivets to form a single unit.
Q:Can these bearings handle heavy loads?
A:
Yes, despite their thin-walled design, they can withstand relatively heavy loads and combined load directions.
Send Inquiry
*To:
Luoyang Rock Precision Engineering Co., Ltd.
Luoyang Rock Precision Engineering Co., Ltd.*Content:
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