21312 EK
- Inner Diameter (d)
- 60mm
- Outer Diameter (D)
- 130mm
- Overall width (B)
- 31mm
Specifications
Standard double row Spherical roller bearing Seris - 21312 EK
21312 EK Spherical Roller Bearings Features and Advantages
High load capacity: Capable of withstanding large radial loads and bidirectional axial loads, making it suitable for heavy-duty and impact vibration load environments.
Self-aligning Performance: The outer ring raceway is spherical, effectively compensating for misalignment due to installation errors or shaft deformation.
High-Temperature Performance: Spherical roller bearings have a wide operating temperature range, suitable for applications in high-temperature environments.
Vibration Resistance: Capable of accommodating changes in relative position due to thermal expansion or installation errors, suitable as a free-end bearing.
Application: Widely used in mining, marine, milling applications, coal machinery, wind turbines, paper printing, steel metallurgy, electric vehicles, and large machinery.
QIBR - 21312 EK Spherical Roller Bearings Optimization
High-Performance Materials: Different materials such as GCr15, AISI 440C, and 42CrMo can be provided based on customer requirements.
Structural Optimization: The bearing structure and geometry can be optimized according to customer needs to enhance alignment performance and operational stability.
Lubricating Grease: Selection of appropriate lubricants like Mobil SHC 100, SKF LGEP 2, or Shell Gadus S2 V220 based on the bearing's working conditions or customer requirements.
Customization: Bearings can be designed and optimized by QIBR according to customer-specific working conditions and requirements.
QIBR - 21312 EK Spherical Roller Bearings Quality Control
Dimension measurement: Using various high-precision instruments, multiple dimensions of the bearing are measured with an accuracy of up to 0.001mm.
Rotation accuracy: A dial gauge measures minor surface flaws or deviations, with measurement accuracy reaching 0.001mm.
Hardness measurement: Surface hardness is measured using a hardness tester, with an accuracy of ±0.5HRC.
Metallographic analysis: A professional metallographic microscope is used to analyze the internal metallographic structure of the metal.
Form and Position Tolerance: A profilometer is used to measure the geometric shape and relative position of the bearing.
Noise monitoring: Vibration levels during operation are monitored using a vibration meter to obtain noise data.
Raw material control: Steel and parts are sourced from ISO 14001-certified suppliers, ensuring product stability while promoting sustainable development.
Features & Benefits
Spherical roller bearings are rolling bearings that can bear both radial and axial loads. The "spherical" in its name refers to its ability to self-adjust to accommodate axis deviation or tilt when the bearing is installed. This type of bearing is usually composed of an inner ring, an outer ring, rollers (cylindrical rollers) and a cage.