What is the minimum order quantity?

The minimum order quantity is 1 set.

What are the payment terms?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

What is the lead time for production?

The average lead time is one month, ranging from 1 to 3 months depending on the season and order volume.

Ra Ultra-Precision Series: Thin-Section Crossed Roller Bearings for Industrial Robotics & Automation

Name: Ra Ultra-Precision Series: Thin-Section Crossed Roller Bearings for Industrial Robotics & Automation
Brand: Luoyang Rock Precision Engineering Co., Ltd.
SKU: 2251179995

Henan, ChinaLuoyang Rock Precision Engineering Co., Ltd.

US$1.00

1 Piece

Sample price:US$1.00/piece.Request sample

Product profile

Customization

Available

Rolling Body

Roller Bearings

The Number of Rows

Single

Model NO.

Outer Dimension

Multiple Sizes Available

Material

High Carbon Chromium Bearing Steel

Spherical

Non-Aligning Bearings

Load Direction

Combined Load

Separated

Yes (Outer Ring Is Split Into Two Sections)

Transport Package

Stardard

Specification

Stardard

Trademark

Rock

Origin

Luoyang

HS Code

8482500090

Production Capacity

5000 Pieces/Year

Key features

Compact Thin-Section Design: Reduced wall thickness of inner and outer rings compared to RB type for lightweight and space-saving applications.

Split Outer Ring Structure: Outer ring split into two axial sections fastened with rivets, allowing for easy installation and maintenance.

High Load Capacity: Capable of withstanding relatively heavy combined loads despite its thin-walled structure.

Premium Material: Manufactured from high carbon chromium bearing steel for durability and precision.

Robotics Optimization: Ideal for rotary joint components in robot wrists and arms requiring compactness and high accuracy.

OEM/ODM Support: Full customization options available including samples, designs, and flexible minor adjustments.

Wide Size Range: Available in multiple sizes from RA5008 to RA20013 to suit various industrial automation needs.

Single Row Configuration: Single row crossed roller design ensuring stable rotational accuracy and torque.

Company profile

High Repeat Buyers ChoiceIn-stock CapacityFast DeliveryCustomization from Samples

Luoyang Rock Precision Engineering Co., Ltd.

Henan, China

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: ≤1.08h

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 types?

The RA type features reduced wall thickness on both inner and outer rings compared to the RB type, making it more compact and lightweight while maintaining load capacity.

Q:Can the outer ring be separated?

Yes, the outer ring is split into two axial sections (upper and lower) and is fastened together using rivets to form a single unit.

Q:What are the typical applications for this bearing?

It is highly suitable for rotary joint components in the wrists or arms of robots, industrial manipulators, and other applications requiring lightweight and compact components.

Q:What material is used for these bearings?

The bearings are made from high carbon chromium bearing steel to ensure high precision and durability.

Q:Is customization available for this product?

Yes, we offer OEM and ODM services with options for customization from samples, designs, full customization, and minor adjustments.