6218 NR
- Brand
- QIBR
- Alternative brand
- SKF
- Rolling element type
- Ball
- Measurement system
- Metric
- Precision level
- P0(ABEC-1)
- Outer diameter
- 160 mm
- Inner diameter
- 90 mm
- Total width
- 30 mm
- Chamfer dimension
- 2 mm
- Outer diameter of inner ring
- 112 mm
- Inner diameter of outer ring
- 143 mm
- Width snap ring groove
- 3.1 mm
- Width snap ring
- 2.82 mm
- Distance groove
- 4.9 mm
- Groove diameter
- 155.22 mm
- Snap ring diameter
- 169.7 mm
- Weight
- 2.25 kg
- Load direction
- Radial
- Vibration grade
- ZV2
- Temperature
- -20℃ to +120℃
- Ring material
- 52100
- Rolling element material
- 52100
- Basic dynamic load rating
- 101 kN
- Basic static load rating
- 73.5 kN
- Fatigue load limit
- 2.8 kN
- Reference speed
- 8500 rpm
- Limiting speed
- 5300 rpm
- Seal type
- Open type
Tell us your operating requirements and required quantity.
Description
A deep groove ball bearing with a snap ring groove is a specialized type of deep groove ball bearing that features an additional groove machined into the outer ring. This groove is designed to accommodate a snap ring, which is a retaining ring that helps secure the bearing in place axially.
Deep groove ball bearings with snap ring grooves are commonly used in various industries and applications where axial retention is required, such as in gearboxes, transmissions, electric motors, and agricultural machinery.
Overall, this type of bearing offers the versatility and reliability of standard deep groove ball bearings, with the added benefit of axial retention provided by the snap ring feature.
QIBR - 6218 NR Deep Groove Ball Bearing Advantages and Applications
6218 NR Deep Groove Ball Bearing, high quality performance, low vibration, Inner diameter is 90 mm，Outer diameter is 160 mm，Total width is 30 mm，Weight is 2.25 kg, suitable for crushers, motors and screening machines, etc., and is the most widely used bearing in working conditions with high performance requirements.
QIBR - 6218 NR Deep Groove Ball Bearing Characteristics
6218 NR Deep Groove Ball Bearing, easy to install and maintain, strong adaptability. 6218 NR Deep Groove Ball Bearing, can bear radial load and certain axial load at the same time, suitable for mechanical equipment with high stability requirements.
6218 NR Deep Groove Ball Bearing Product Features and Advantages
High Load Capacity: Capable of simultaneously bearing large radial and axial loads, suitable for various load conditions.
Simple Structure: Low manufacturing cost, high cost-effectiveness, simple design, easy to manufacture and install.
Self-Aligning Ability: Possesses a certain degree of self-aligning capability, automatically adjusting the relative position of the inner and outer rings, reducing precision requirements during installation.
Smooth Operation: Low friction coefficient, resulting in low noise during operation, suitable for high-speed applications.
Application: Widely used in electric motors, automotive industry, household appliances, industrial machinery, agricultural machinery, wind turbines, railway vehicles, construction machinery, and more.
QIBR - 6218 NR Deep Groove Ball Bearing Optimization
Optional Types: Can be supplied with CN or C3 group clearance, or customized clearance based on customer requirements.
Grease Replacement: Lubricants can be chosen based on bearing operational needs, such as SKF LGED 2, Mobil SHC Polyrex 102 EM, etc.
Cage Types: Cage type can be selected according to bearing operating conditions, such as two-piece riveted steel cage, one-piece stainless steel crown cage, one-piece polymer crown cage, machined brass cage, etc.
Further Customization: QIBR can design and optimize bearings according to customer drawings and operational requirements.
QIBR - 6218 NR Deep Groove Ball Bearing Quality Control
Dimension measurement: Multiple high-precision instruments are used to measure various dimensions of the bearing, 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: The surface hardness of the bearing 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.
Geometric tolerance: A profilometer is used to measure the geometric shape and relative position of the bearing.
Noise monitoring: A vibration meter monitors vibrations during operation, providing noise data with a noise vibration level not lower than Z3V3.
Raw material control: Steel and parts are sourced from ISO 14001-certified suppliers, ensuring product stability while promoting sustainable development.
Features & benefits
A deep groove ball bearing with a snap ring groove is a specialized type of deep groove ball bearing that features an additional groove machined into the outer ring. This groove is designed to accommodate a snap ring, which is a retaining ring that helps secure the bearing in place axially. Deep groove ball bearings with snap ring grooves are commonly used in various industries and applications where axial retention is required, such as in gearboxes, transmissions, electric motors, and agricultural machinery.
The outer ring is made of high-purity special high-quality bearing steel processed by high-speed forging + cold rolling process, and the raceway surface is carbonitrided.
Downloads
Showing 4 of 7
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
