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Ra Series Ultra-Precision Industrial Bearings with Global Tier-1 Quality Benchmark
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.
High Load Capacity: Thin-walled structure withstands heavy combined loads while requiring minimal space.
Split Outer Ring Structure: Outer ring split into two sections fastened by rivets, facilitating installation and maintenance.
Multiple Size Options: Available in various models from RA5008 to RA20013 with precise dimensional tolerances.
OEM/ODM Customization: Supports full customization from samples, designs, and minor adjustments for specific needs.
High Precision Quality: Global Tier-1 quality benchmark with strict random visual inspection for finished products.
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: ≤2.03h
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 difference between RA and RB series bearings?
A:
The RA series is a more compact version of the RB type, featuring reduced wall thickness on both inner and outer rings to save space and weight.
Q:Can the outer ring be separated for installation?
A:
Yes, the RA series features a split outer ring structure consisting of two axial sections fastened together with rivets.
Q:What types of applications are these bearings suitable for?
A:
They are ideal for rotary joint components in robots, robotic arms, and industrial manipulators where space and weight are critical.
Q:Is customization available for these bearings?
A:
Yes, we offer OEM and ODM services including full customization from samples or designs and minor customizations.
Q:What is the minimum order quantity?
A:
The minimum order quantity is 1 set.
Send Inquiry
*To:
Luoyang Rock Precision Engineering Co., Ltd.
Luoyang Rock Precision Engineering Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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