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Ra Series Robust Industrial Bearings with Enhanced Rigidity & Heavy-Duty Continuous Operation 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 on inner and outer rings for lightweight robotic applications.
Split Outer Ring Structure: Outer ring split into two sections fastened by rivets for easy installation and maintenance.
High Load Capacity: Withstands relatively heavy combined loads in a compact cylindrical roller bearing design.
Multiple Size Options: Available in various models from RA5008 to RA20013 to fit different space requirements.
OEM/ODM Customization: Supports full customization, minor customization, and flexible design-based modifications.
High Precision Material: Manufactured from high carbon chromium bearing steel for durability and rigidity.
Robotic Joint Suitability: Ideal for rotary joints in robot wrists, arms, and industrial manipulators.
Single Row Configuration: Single row design with non-aligning spherical structure for stable rotational accuracy.
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: ≤1.72h
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 the RA series compared to the 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:How is the outer ring constructed in the RA type bearing?
A:
The outer ring is split into two axial sections (upper and lower) and fastened together to form a single unit using rivets.
Q:What are the typical applications for this crossed roller bearing?
A:
It is highly suitable for rotary joint components in the wrists or arms of robots, robotic arms, and industrial manipulators.
Q:Is customization available for this product?
A:
Yes, we offer OEM and ODM services including full customization, minor customization, and flexible customization from samples or designs.
Q:What is the minimum order quantity (MOQ)?
A:
The minimum order quantity is 1 set.
Send Inquiry
*To:
Luoyang Rock Precision Engineering Co., Ltd.
Luoyang Rock Precision Engineering Co., Ltd.*Content:
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