RB7013 Crossed Roller Bearings Packed and Ready to Ship to Germany

A batch of 150 sets of RB7013 crossed roller bearings has passed inspection, been packed and is now ready to ship to an industrial automation equipment manufacturer in Germany. The bearings will be installed in the rotating joints of the customer’s industrial robots, where compact size, high rigidity and accurate rotation all matter at once. Shipments like this one show the growing trust that international customers place in BY Bearings, and their confidence in the quality and consistency of our products. 

Order Overview: 150 Sets for Robot Joint Rotation

The customer builds industrial automation equipment, and this order is for the joint rotation points of its robots. Each joint needs a bearing that can support the arm, handle loads from several directions and keep the rotation smooth, all within a tight installation space. A 150-set order also means consistency is critical. Every bearing must perform the same way, so that robots built from different batches behave predictably.

Inside the Structure: How a Crossed Roller Bearing Works

A conventional bearing arrangement often uses two bearings to handle combined loads. A crossed roller bearing replaces that arrangement with a single bearing.

Inside the bearing, cylindrical rollers are placed between the inner and outer rings with their axes crossing at 90 degrees to each other, and each roller alternates its direction from the one beside it. The rollers run on V-shaped raceways, so every roller touches the raceway along a line rather than at a point. Spacer retainers keep the rollers apart, which reduces friction and helps the bearing turn smoothly.

Because the rollers face alternate directions, one bearing can carry radial load, axial load in both directions and tilting moment at the same time. For a robot joint, which is rarely loaded from just one direction, this is a major advantage.

Separable Outer Ring and Rotating Inner Ring

The RB7013 follows the RB design, with a separable outer ring and a solid inner ring. The outer ring is split so that the rollers and retainer can be assembled into the raceway, and the ring is then secured. The inner ring is a single solid piece.

This layout suits applications where the inner ring rotates, which is exactly the case in many robot joints. A solid inner ring helps keep the rotating part concentric and stable, supporting high rotation accuracy. The separable outer ring also makes assembly practical when the bearing is fitted into a housing and held with a pressure ring.

Key Features of BRB7013 for Compact, High-Rigidity Joints

The RB7013 belongs to our BRB Series Crossed Roller Bearings, which is why it is also called BRB7013. With standard dimensions of 70 mm bore, 100 mm outside diameter and 13 mm width, it has a slim cross-section that fits where space is limited. Its main features are:

• • Compact structure: One thin bearing replaces a multi-bearing arrangement, saving axial space and weight in the joint.

• • High rigidity: Line contact between rollers and raceways gives stiffness that resists deflection when the joint is loaded.

• • Combined load capacity: Radial, axial and moment loads are carried by a single bearing.

• • Smooth, accurate rotation: The roller arrangement and precision raceways support stable motion, which helps robots position their arms accurately and repeat movements reliably.

• • Simple assembly: The compact size and separable outer ring simplify design and installation.

These qualities are typical of precision crossed roller bearings, which is why they are widely used in robot joints, harmonic drive units and other compact rotary axes.

Inspection and Packing for a 150-Set Order

Before shipment, the RB7013 bearings were inspected under our ISO 9001 quality system, and we inspect 100% of products before they leave the factory. For a batch of this size, that routine check is what keeps every set consistent.

All 150 sets were then packed with anti-rust inner packaging and heavy-duty outer packaging to protect the raceways and mounting surfaces during international transport. Germany is one of the markets we regularly supply, and the process is the same for every destination.

Related Bearings for Automation and Robotics

Robot joints are only one part of an automation machine. Other rotary axes, such as indexing tables or positioning stages, often need a bearing with more load capacity and rigidity. Our Rotary Table Bearings are designed for those cases. For large-diameter, heavy-duty rotating structures, such as a robot base or a large turntable, Slewing Bearings may be a better fit. Our engineers can help compare options based on your space, load and accuracy requirements.

About BY Bearings

BY Bearings, operated by Luoyang Boying Bearing Co., Ltd., is a China-based manufacturer of high-precision bearings with more than 15 years of manufacturing experience. We supply customers in more than 65 countries, including distributors, machine tool builders, DD motor makers, and robotics and automation companies.

Our main products include crossed roller bearings, crossed tapered roller bearings, rotary table bearings, slewing bearings and thin section bearings, along with spherical roller, cylindrical roller and thrust bearings. Our products carry CE and RoHS certification, and our factory operates under an ISO 9001 quality system.

We support OEM and ODM orders, and our engineers work with customers to confirm design, material and parameters before production. Whether you need a standard model like the RB7013 or a bearing made to your own drawing, we can help.

If you are planning a robot joint or another compact rotary axis, send us your requirements and we will recommend a suitable bearing. You can get a quote directly from our sales team or talk to our engineers about your project.

Contact BY Bearings to Discuss Your Bearing Requirements →

Website: https://www.bybearings.com/
Email: sales@bybearings.com
WhatsApp / Tel: +86 189 3901 9135