Bearings for Machine Tools | BY Bearings
BY Bearings (registered trademark: BYC®) is a specialized supplier of precision bearings for CNC machine tools. With extensive experience in the R&D and manufacturing of high-precision rotary and support bearings, we provide bearing solutions focused on high rigidity, precision stability, and long service life for advanced CNC equipment.
Product Portfolio
Our product portfolio includes rotary table bearings, cross cylindrical roller bearings, cross tapered roller bearings, precision slewing bearings, and ultra-thin thin-section precision bearings. These products are designed to meet the requirements of modern CNC machine tools and are widely applied in turn-mill centers, 5-axis machining centers, vertical machining centers, and horizontal machining centers.
They are also suitable for key machine tool components such as 5-axis rotary tables, tilting cradles, 4-axis indexing tables, precision tailstocks, and 5-axis milling heads.

Engineering Capability
Supported by an experienced engineering team specialized in CNC machine tool applications, we have in-depth knowledge of OEM bearing specifications, installation dimensions, load conditions, precision grades, and operating environments.
This enables us to provide compatible replacement solutions that match key functional requirements in terms of specification and performance for many imported machine tool systems.
Manufacturing & Quality Control
We implement strict quality control standards throughout the entire production process, from material selection and precision grinding to heat treatment, assembly, and final inspection.
Each bearing is inspected to ensure dimensional accuracy, rotational precision, rigidity stability, and operational durability.

Service & Support
We provide full-cycle technical support, including product selection, application matching, technical consultation, and after-sales service. Our global customer support system ensures responsive assistance for machine tool matching and bearing replacement solutions.