
HIWIN CRBE 21040 B crossed roller bearing
- Brand
- HIWIN
- Category
- Bearings
- Subcategory
- Special bearings
- Series
- CRBE
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Description
HIWIN CRBE 21040 B belongs to crossed roller bearing, part of our Bearings range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for CRBE 21040 B and any equivalents.
The CRBE series from HIWIN is a crossed roller bearing that combines inner and outer rings with cylindrical rollers set in a crossed arrangement. This design allows one bearing to handle loads from multiple directions, which simplifies surrounding structures and increases rigidity. Typical uses include rotary tables, robots, and measuring equipment where rotational accuracy and combined load capacity are important.
The part number breaks down into two parts. The letters CRBE indicate the crossed roller bearing family. The following digits, as seen in CRBE 08022 B, CRBE 09025 B, CRBE 11528 B, CRBE 16035 B, and CRBE 21040 B, encode key dimensions such as bore, outer diameter, and width according to the manufacturer's catalog. The B suffix denotes a construction detail, such as sealing or precision class. Always refer to the manufacturer's table to read a specific code correctly.
These bearings suit industries that need precise, repeatable motion. They appear in machine tools, automation equipment, robotic arms, positioning tables, measuring instruments, and material handling systems. Because a single unit can take radial, axial, and moment loads, they are a good fit where space is tight and high rigidity is required, for example in milling heads or precision spindles.
When selecting a bearing, consider the required load capacity, rotational accuracy, operating speed, and environmental conditions. Mounting must be done with care, ensuring proper alignment between the rings and the structure. Lubrication and effective sealing are critical for service life, especially where contaminants are present. Follow the manufacturer's instructions for mounting and fastening, and avoid impacts that could damage the raceways.
For equivalences, crossed roller bearings from different brands may share similar dimensions and capacities, but tolerances and internal design can differ. When replacing a bearing, compare the complete code and technical specifications. If you have a code from another brand, contact MR Industrial Accessories to identify the equivalent reference and get technical advice.
To request a quote for CRBE series crossed roller bearings or to ask about other references, send the code or dimensions by WhatsApp or email to MR Industrial Accessories. The team replies promptly and can suggest equivalents and help you choose.
Dimensions
Dimensions and tolerances: Message us the part number on WhatsApp and we'll verify its dimensions and version with the manufacturer's datasheet.
Frequently asked questions
- What applications use CRBE series crossed roller bearings?
- They are found in rotary tables, robots, measuring machines, and precision equipment that require high rigidity and combined load capacity. Their design handles radial, axial, and moment loads in a compact space.
- How do I select the right CRBE bearing?
- Consider load, precision, speed, and environment. Mounting must ensure correct alignment and lubrication. To choose the exact code, consult a specialist and verify the critical dimensions.
- Are CRBE bearings interchangeable with other brands?
- Dimensional equivalents may exist, but tolerances and internal design vary. Always verify the complete code and specifications. If you have a code from another brand, we can help you find the compatible reference.

