NN30/500

Inner diameter:
500 mm
Outer diameter:
720 mm
Width:
167 mm
Mass:
205 kg

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NN30/500

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Brand : QIBR
Rolling element type : Roller
Measurement system : Metric
Precision level : P5
Vibration grade : ZV3
Inner diameter (d) : 500 mm
Outer diameter (D) : 720 mm
Width (B) : 167 mm
Chamfer dimension (r) : 6 mm
Radial dynamic load : 2580 KN
Static load rating,radial : 5600 KN
Roller circumscribed circle diameter : 663 mm
Weight : 205 kg
Limiting speed (Grease) : 900 rpm
Limiting speed (Oil) : 1200 rpm
Amount of axial movement (s) : 5.5 mm
CC1 (MIN) : 25 μm
CC1 (MAX) : 95 μm
Oil hole diameter (dh) : 10 mm
Oil trench width (W) : 18 mm
Number of holes : 4
Temperature : -30 ℃ to 110 ℃
Seal type : Open Type
Inner diameter (d), Outer diameter (D), Width (B), Chamfer dimension (r), Radial dynamic load, Static load rating,radial, Roller circumscribed circle diameter , Weight, Limiting speed (Grease), Limiting speed (Oil), Amount of axial movement (s), CC1 (MIN), CC1 (MAX), Oil hole diameter (dh), Oil trench width (W), Number of holes,

QIBR - NN30/500 Precision Cylindrical Roller Bearings Advantages and Applications

NN30/500 Precision Cylindrical Roller Bearings, high precision, high rigidity, Inner diameter (d) is 500 mm, Outer diameter (D) is 720 mm, Width (B) is 167 mm, Weight is 205 kg, suitable for machine tools, motors, industrial pumps and wind turbine main shafts, etc., and is the most widely used bearing in working conditions with high precision requirements.

Inner diameter (d), Outer diameter (D), Width (B), Chamfer dimension (r), Radial dynamic load, Static load rating,radial, Roller circumscribed circle diameter , Weight, Limiting speed (Grease), Limiting speed (Oil), Amount of axial movement (s), CC1 (MIN), CC1 (MAX), Oil hole diameter (dh), Oil trench width (W), Number of holes,

QIBR - NN30/500 Precision Cylindrical Roller Bearings Characteristics

NN30/500 Precision Cylindrical Roller Bearings, high reliability, easy to install and maintain. NN30/500 Precision Cylindrical Roller Bearings, can withstand radial load and small axial load, suitable for mechanical equipment with high safety requirements.

NN30/500 Precision Cylindrical Roller Bearings Features and Advantages

High Precision: These bearings offer extremely high precision, with a precision grade of P4, making them suitable for applications requiring high rotational accuracy.

High Load Capacity: The line contact between the cylindrical rollers and raceways allows them to bear large radial loads.

Low Friction: The line contact between the rollers and raceways results in low friction, enhancing mechanical efficiency.

Floating Characteristics: There is no constraint force between the rollers and the raceways without flanges, allowing compensation for length changes during rotational motion, making them suitable as floating bearings.

Application: Widely used in machine tool manufacturing, precision machining equipment, heavy-duty and high-speed machinery, aerospace, research and experimental equipment, and other fields.

QIBR - NN30/500 Precision Cylindrical Roller Bearings Optimization

High-Performance Materials: Different materials, such as 100Cr6, GCr15, 20CrMo, AISI 52100, etc., can be provided according to customer requirements.

Cage Material: The cage material can be selected based on customer needs, including steel, brass, nylon, polyamide, PEEK, and PPS, among others.

Lubricants: Suitable lubricants, such as SKF LGHP 2, RENOLIT LX EP 2, Shell Gadus S2 V100 2, etc., can be chosen based on operating conditions and specific parts of the bearing.

More customization: QIBR can design and optimize bearings according to the customer's operating conditions and requirements.

QIBR - NN30/500 Precision Cylindrical Roller Bearings Quality Control

Dimension measurement: Various high-precision instruments are used to measure multiple 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: Surface hardness is measured using a hardness tester, with an accuracy of ±0.5HRC.

Metallographic analysis: The internal metallographic structure of the metal is analyzed using a professional metallographic microscope.

Geometric tolerance: A contour measuring instrument is used to measure the geometric shape and relative position of the bearing.

Noise monitoring: Vibration data is obtained by monitoring the vibrations during operation with a vibration meter.

Raw material control: Steel and parts are sourced from ISO 14001-certified suppliers, ensuring product stability while promoting sustainable development.

NN30/500
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.
Contact seal on both sides
Have a two-piece inner ring, held together by a retaining ring and with three integral flanges
Full Complement Rollers, enhancing load-carrying capability and promoting uniform stress distribution.
Grease lubrication
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