What are the payment terms?

Payment terms include LC, T/T, D/P, PayPal, Western Union, and Small-amount payment.

What is the lead time for production?

The average lead time is one month, ranging from 1-3 months depending on the season.

What materials are used for the bearings?

The bearings are made of carburized steel, which provides excellent impact resistance and surface wear resistance.

Heavy-Duty Rb Series Bearings Long-Term Stability & High Load Capacity Aligned with Global Standards

Name: Heavy-Duty Rb Series Bearings Long-Term Stability & High Load Capacity Aligned with Global Standards
Brand: Luoyang Rock Precision Engineering Co., Ltd.
SKU: 2256178915

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

Carburized Steel

Spherical

Non-Aligning Bearings

Load Direction

Combined Load

Separated

Transport Package

Stardard

Trademark

Rock

Origin

Luoyang

HS Code

8482500090

Production Capacity

5000 Pieces/Year

Key features

High Rotational Accuracy: 90-degree crossed rollers with spacers prevent friction, skewing, and locking for precise motion.

Ultra-Thin Compact Design: Minimized inner and outer ring dimensions save installation space while maintaining high rigidity.

Multi-Directional Load Capacity: Withstands significant radial, axial, and moment loads due to perpendicular roller arrangement on V-grooves.

Adjustable Clearance: Split ring structure allows clearance adjustment, enabling high-precision rotation under preload.

Easy Installation: Split rings fixed after assembly make installation straightforward and efficient.

Durable Carburized Steel: Material offers excellent impact resistance and surface wear resistance for long-term stability.

Low Starting Torque: Nylon spacers reduce moment of inertia and starting torque for easy angular indexing control.

Wide Application Scope: Ideal for industrial robots, machining centers, medical equipment, and IC manufacturing tools.

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: ≤1.05h

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 structure of RB crossed roller bearings?

The RB-type bearing features a split outer ring and an integral inner ring, with rollers arranged perpendicularly at 90 degrees and separated by spacers to prevent friction.

Q:Can the clearance be adjusted in these bearings?

Yes, due to the split structure of the inner and outer rings, clearance can be adjusted, enabling high-precision rotational motion even when preload is applied.

Q:What types of loads can these bearings withstand?

They can withstand significant radial, axial, and moment loads from all directions due to the perpendicular arrangement of rollers on V-grooved rolling contact surfaces.

Q:Are OEM and ODM services available?

Yes, OEM and ODM services are available, including customization from samples, designs, full customization, minor customization, and flexible customization.

Q:What is the minimum order quantity (MOQ)?

The minimum order quantity is 1 set.