YRT325
- Brand
- QIBR
- Alternative brand
- INA
- Rolling element type
- Roller
- Measurement system
- Metric
- Inner diameter
- 325 mm
- Outer diameter
- 450 mm
- Total height
- 60 mm
- Size1
- 40 mm
- Size2
- 20 mm
- Width of outer ring
- 20 mm
- Outer diameter of inner ring
- 415.1 mm
- Internal hole circle diameter
- 342 mm
- External hole circle diameter
- 430 mm
- Hole diameter at inner ring
- 9.3 mm
- Counter bore diameter
- 15
- Counter bore depth
- 8.2
- Number of mounting holes of the inner ring
- 34
- Hole diameter at outer ring
- 9.3 mm
- Number of holes1
- 33
- Bolt hole diameter
- M12
- Number of holes2
- 3
- Number of mounting holes of the outer ring
- 36X10°
- Tightening torque
- 34 Nm
- Basic dynamic load rating (axial)
- 186 KN
- Basic static load rating (axial)
- 1710 KN
- Basic dynamic load rating (radial)
- 134 KN
- Basic static load rating (radial)
- 415 KN
- Limiting speed
- 110 rpm
- Bearing frictional torque
- 48 Nm
- Rigidity of bearing position (axial)
- 4.3 kN/μm
- Rigidity of bearing position (radial)
- 5 kN/μm
- Tilting rigidity of bearing position
- 80 kNm/mrad
- Rigidity of rolling element set (axial)
- 26.1 kN/μm
- Rigidity of rolling element set (radial)
- 9.4 kN/μm
- Tilting rigidity of rolling element set
- 422 kNm/mrad
- Weight
- 25 kg
- Temperature
- -30℃ to +120°C
- Seal type
- Open Type
Tell us your operating requirements and required quantity.
Description
The YRT&YRTC slewing bearing is a specially designed high-precision bearing. It has characteristics such as unique structural design, high precision, high rigidity, high load-carrying capacity, high rotational precision, long service life and high reliability, as well as convenient installation.
QIBR - YRT325 Combined Precision Bearing Advantages and Applications
YRT325 Combined Precision Bearing, strong load-bearing capacity, compact structure, Inner diameter is 325 mm, Outer diameter is 450 mm, Total height is 60 mm, Weight is 25 kg, suitable for excavators, dismantling machines and metallurgical cranes, etc., and is the most widely used bearing in working conditions with high load-bearing capacity requirements.
QIBR - YRT325 Combined Precision Bearing Characteristics
YRT325 Combined Precision Bearing, long life, high reliability. YRT325 Combined Precision Bearing, can withstand radial load, axial load and overturning moment, suitable for mechanical equipment with high stability requirements.
YRT325 Combined Precision Bearing Features and Advantages
High load capacity: Combined precision bearing can withstand axial loads, radial loads, and overturning moments, making them suitable for high-load applications.
High Precision: The dimensional accuracy is at P5 level, and the rotational accuracy is at P4 level, ensuring high rotational precision.
Superior Rigidity: These bearings exhibit higher stiffness when subjected to overturning moments, maintaining good performance under high load conditions.
Low Operating Noise: They generate low noise during operation, making them ideal for use in noise-sensitive environments.
Application: Combined precision bearing are widely used in precision rotary tables, vertical grinding machines, indexing heads, gear hobbing machines, CNC machine tools, radar systems, and high-precision medical equipment.
QIBR - YRT325 Combined Precision Bearing Optimization
High-performance materials: The bearing materials can be replaced based on different working conditions, such as GCr15, GCr15SiMn, S165M, etc.
Cage Material: The cage material can be replaced according to customer requirements, such as using 20# steel, brass, or polyamide nylon.
Grease Replacement: The grease can be substituted with other lubricants, such as Mobilith SHC 220 or Shell Gadus S2 V220.
Grease replacement: QIBR technicians can recommend grease according to the working conditions of the bearing or replace grease according to customer needs, such as Mobil, Shell, SKF, Fuchs and other brands.
More customization: QIBR can design and optimize bearings based on customer specifications and operational requirements.
QIBR - YRT325 Combined Precision Bearing quality control
Dimension measurement: Various high-precision instruments are used to measure multiple dimensions of the bearings, achieving a maximum accuracy of 0.001mm.
Rotation accuracy: A dial gauge is employed to measure small defects or deviations on the bearing surface, with measurement accuracy reaching 0.001mm.
Hardness measurement: The surface hardness of the bearings is measured using a hardness tester, with an accuracy of ±0.5HRC.
Metallographic analysis: Professional metallographic microscopes are used to analyze the internal metallographic structure of the metal.
Geometric tolerance: A profile projector is used to measure the geometric shape and relative position of the bearings.
Noise monitoring: Vibration monitors are utilized to track the vibration conditions during operation, providing noise data.
Raw material control: Steel and components are sourced from suppliers with ISO 14001 certification, ensuring product stability while promoting sustainable development.
Features & benefits
The YRT slewing bearing is a specially designed high-precision bearing. It has characteristics such as unique structural design, high precision, high rigidity, high load-carrying capacity, high rotational precision, long service life and high reliability, as well as convenient installation.
High-purity special high-quality bearing steel processed by high-speed forging + cold rolling process, and the raceway surface is carbonitrided.
Downloads
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Bearing condition questionnaire
Bearing Condition Questionnaire
Agency document
Agent Application Form
Product brochure
Slewing & Cross Roller Bearing Catalog
Product brochure
Bearing Unit Catalog
Showing 4 of 7

