NN3014ZTB

NN3014ZTB · Внешний вид изделия

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NN3014ZTB · Технический чертёж

Бренд
QIBR
Alternative brand
NSK
Rolling element type
Roller
Measurement system
Metric
Precision level
P5(RBEC-5)
Outer diameter
110 mm
Inner diameter
70 mm
Total width
30 mm
Outer envelope circle
100 mm
Inner envelope circle
/
Bearing clearances (radial)
0.015～0.03 mm
Chamfer dimension
1.1 mm
Permissible axial displacement
1.2 mm
Width annular lubrication groove
/
Oil hole size
/
Weight
0.809 kg
Load direction
Radial
Vibration grade
ZV3
Temperature
-30℃ to +110℃
Seal type
Open type
Ring material
52100
Rolling element material
52100
Basic dynamic load rating
66.5 kN
Basic static load rating
74 kN
Lubrication speed
9900 rpm
Oil speed
13200 rpm

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Описание

Double-row cylindrical roller bearing is a type of rolling bearing with two rows of cylindrical rollers, widely used in industrial equipment requiring high rigidity and load carrying capacity. The main structure includes an inner ring, an outer ring, two columns of cylindrical rollers and a cage. Due to the double-row design, the roller is in linear contact with the raceway, which can withstand greater radial loads while providing higher rigidity and stability. Double-row cylindrical roller bearings are suitable for high-precision and high-speed operation conditions, and are often used in machine tool spindles, rolling mills, heavy machinery and other fields. Although it mainly bears radial loads, it can also bear certain axial loads. Regular lubrication and maintenance can extend its service life and ensure reliable operation of the equipment.

QIBR - NN3014ZTB Precision Cylindrical Roller Bearings Advantages and Applications

NN3014ZTB Precision Cylindrical Roller Bearings, high precision, high rigidity, Inner diameter is 70 mm, Outer diameter is 110 mm, Total width is 30 mm, Weight is 0.809 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.

QIBR - NN3014ZTB Precision Cylindrical Roller Bearings Characteristics

NN3014ZTB Precision Cylindrical Roller Bearings, high reliability, easy to install and maintain. NN3014ZTB Precision Cylindrical Roller Bearings, can withstand radial load and small axial load, suitable for mechanical equipment with high safety requirements.

NN3014ZTB 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 - NN3014ZTB 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 - NN3014ZTB 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.

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