Precision Rotary Table Bearings: The Core of High-End Motion Control
1. Product Overview
At ZZ, we understand that the rotary table bearing is the "heart" of any precision indexing application. Our Rotary Table Bearings (often referred to as YRT series or Turntable Bearings) are engineered to deliver exceptional rigidity and accuracy for high-performance machinery.
Unlike standard bearings, our rotary table bearings are designed as complex assemblies capable of handling combined loads with minimal space requirements. Whether for a 5-axis machining center or a precision radar system, ZZ bearings ensure that your equipment maintains its positioning accuracy over long operational cycles. We specialize in replacing expensive imported brands with domestic high-end manufacturing solutions that meet P2, P4, and P5 precision classes.
2. Performance & Quality Highlights
Our engineering team focuses on three core pillars: Rigidity, Precision, and Longevity.
-
Triple-Row Roller Design: Our standard YRT series features a unique three-row roller configuration. Two rows of axial rollers handle thrust loads, while one row of radial rollers supports radial forces and overturn moments. This design offers superior load-carrying capacity in a compact cross-section.
-
Ultra-High Precision: We manufacture bearings with precision grades ranging from P5 to P2 (DIN/ISO standards). This ensures minimal runout and high indexing accuracy for complex machining tasks.
-
High Rigidity & Low Friction: Optimized internal geometry reduces friction torque, ensuring smooth rotation even under heavy loads. The high stiffness prevents deformation, guaranteeing the stability of the machine tool spindle.
-
Material Excellence: We utilize vacuum-degassed, high-carbon chromium bearing steel (GCr15) or case-hardened steel, treated with advanced heat treatment processes to ensure high wear resistance and impact toughness.
3. Technical Specifications
We offer a comprehensive range of rotary table bearings, from compact sizes for robotic joints to massive diameters for industrial turntables.
|
Series Type
|
Structure Feature
|
Precision Grade
|
Outer Diameter Range
|
|
YRT Series
|
High axial/radial capacity, standard design
|
P5 / P4
|
φ100mm - φ2500mm
|
|
YRTS Series
|
Higher speed capability, low friction
|
P4 / P2
|
φ100mm - φ1200mm
|
|
YRTM Series
|
Integrated angle measurement system
|
P4 / P2
|
φ200mm - φ1500mm
|
|
Custom OEM
|
Non-standard dimensions & materials
|
Custom
|
φ20mm - φ5000mm
|
4. Certifications & Standards
Quality is not just a promise; it is a documented fact at ZZ. Our manufacturing processes adhere to strict international standards:
-
ISO 9001:2015 Quality Management System Certified.
-
ABMA/ANSI Standards: Compliance with American Bearing Manufacturers Association specifications.
-
DIN/ISO Standards: Adhering to European tolerance and precision norms.
-
CE Certification: Ensuring safety and compliance for export to European markets.
5. ZZ Service & Support
We don't just sell bearings; we provide motion solutions.
-
OEM & ODM Capabilities: From modifying bore sizes to adding special coatings (e.g., black oxide or zinc plating for corrosion resistance), we tailor products to your specific CAD requirements.
-
Technical Consultation: Our engineers assist with bearing selection, calculating L10 life, and analyzing load conditions to prevent premature failure.
-
Fast Logistics: With a robust supply chain, we ensure on-time delivery for both prototype orders and mass production batches.
-
After-Sales Support: Comprehensive guidance on installation, lubrication, and maintenance to maximize bearing lifespan.
6. Key Applications
Our rotary table bearings are the trusted choice for industries requiring precise rotational movement:
-
CNC Machine Tools: High-speed indexing tables, vertical milling machines, and grinding machines.
-
Industrial Robotics: Rotary joints for articulated robots and collaborative robots (cobots).
-
Aerospace & Defense: Radar antennas, satellite tracking systems, and flight simulators.
-
Medical Equipment: CT scanners and MRI machines requiring smooth, quiet rotation.
-
Renewable Energy: Solar tracking systems and wind turbine pitch control.
7. Frequently Asked Questions (FAQ)
Q: What is the difference between YRT and YRTS series bearings?
A: While both are rotary table bearings, the YRTS series is designed for higher speeds and lower friction torque due to its specific roller guidance system. YRT is generally used for heavy-duty, lower-speed applications requiring maximum rigidity.
Q: Can ZZ manufacture non-standard rotary bearings?
A: Yes. We have extensive experience in producing non-standard bearings, including special bore diameters, mounting hole patterns, and material specifications (such as stainless steel for corrosive environments).
Q: What is the typical lead time for these bearings?
A: For standard models (e.g., YRT100, YRT200), we often have stock or can ship within 7-15 days. Custom or large-diameter bearings typically require 30-45 days depending on the complexity.
Q: How do you ensure the precision of the bearing?
A: We utilize high-precision CNC grinding machines and coordinate measuring machines (CMM) to inspect every batch. Each bearing undergoes rigorous vibration and runout testing before packaging.
Ready to upgrade your machinery's precision? Contact ZZ Bearing today for a quote or technical datasheet.
