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RU297G/RU297X are heavy-duty crossed roller bearings specifically designed for excavator and construction machinery turntables. Adopting an integrated inner and outer ring structure with pre-drilled mounting holes, they can be directly bolted without additional flanges or supports, ensuring easy installation and strong adaptability to installation errors. Featuring a 90° crossed cylindrical roller layout, a single bearing can simultaneously bear radial load, axial load and large overturning moment, with rigidity 3-4 times higher than that of traditional bearing sets, effectively ensuring the smooth rotation of excavators and resisting impact loads during digging operations.
Core Parameters:
Dimensions (mm): ID 210 × OD 380 × Width 40
Model Difference: RU297G (Standard type, high rigidity, suitable for general working conditions); RU297X (Reinforced type, higher precision, suitable for heavy load and impact working conditions)
Material: GCr15 bearing steel, hardened by quenching, with excellent wear resistance and impact resistance
Precision Grade: P5/P4 (P5 grade is commonly used for construction machinery)
Seal Options: Open type (X), Double-sided NBR seals (UU), dust and water proof, suitable for harsh dust and muddy environments on construction sites
Typical Applications
Excavator slewing systems
Construction machinery
Industrial robots
Automation rotary platforms
Lifting equipment
CNC rotary tables
Heavy-duty rotating machinery
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
1999
Total Annual:
5000000-10000000
Employee Number:
100~150
Ecer Certification:
Verified Supplier
Wuxi Tianyuqi Bearing Technology Co., Ltd is an industrial and trading enterprise integrating production and sales. Rooted in Wuxi, China’s manufacturing hub, we have been engaged in the bearing industry for years.
Supported by advanced technology, reliable products and professional services,... Wuxi Tianyuqi Bearing Technology Co., Ltd is an industrial and trading enterprise integrating production and sales. Rooted in Wuxi, China’s manufacturing hub, we have been engaged in the bearing industry for years.
Supported by advanced technology, reliable products and professional services,...