ACB3749H7

Inner diameter:
37 mm
Outer diameter:
49 mm
Width:
7 mm
Mass:
0.028 kg

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ACB3749H7

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Rolling element type : Ball
Measurement system : Metric
Precision level : P0(ABEC-1)
Outer diameter (D) : 49 mm
Inner diameter (d) : 37 mm
Width (B) : 7 mm
Cr : 4.63 KN
Cor : 4.35 KN
Weight : 0.028 kg
Temperature : -30℃ to +110℃
Outer diameter (D), Inner diameter (d), Width (B), Cr , Cor , Weight,

QIBR - ACB3749H7 Bicycle Bearing Advantages and Applications

ACB3749H7 Bicycle Bearing, high speed, lightweight, Inner diameter (d) is 37 mm, Outer diameter (D) is 49 mm, {$Overall width (B)$} is {$Overall width (B)_value$}, Weight is 0.028 kg , suitable for mountain bikes, road bikes, city bikes and electric bikes, etc., and is the most widely used bearing in working conditions with high speed requirements.

Outer diameter (D), Inner diameter (d), Width (B), Cr , Cor , Weight,

QIBR - ACB3749H7 Bicycle Bearing Characteristics

ACB3749H7 Bicycle Bearing, long life, high reliability, easy installation and maintenance. ACB3749H7 Bicycle Bearing, can bear radial load and certain axial load at the same time, suitable for mechanical equipment with high precision requirements.

ACB3749H7 Bicycle Bearing Product Product Features and Advantages

Reduced Friction: Capable of simultaneously bearing large radial and axial loads, suitable for various load conditions.

Durability: Made from wear-resistant materials, capable of withstanding heavy loads while significantly reducing rotational resistance under load conditions.

Lightweight Design: Low-density design reduces the overall weight of the bicycle, enhancing handling and riding comfort.

Precise Steering: Low friction coefficient, resulting in low noise during operation, suitable for high-speed applications.

Application: Widely used in key parts such as wheels, bottom brackets, pedals, frames, derailleurs, sports and racing bicycles, and electric bicycles.

QIBR - ACB3749H7 Bicycle Bearing Optimization

Modular Design: Bearings are designed modularly according to customer needs, making replacement and maintenance easier.

High-Performance Materials: Lubricants can be chosen based on bearing operational needs, such as SKF LGED 2, Mobil SHC Polyrex 102 EM, etc.

Sealing Materials: Different sealing materials can be chosen based on customer needs, such as rubber, POM, polyurethane, etc.

Lubricants: Suitable lubricants are selected based on bearing working conditions and different bearing locations, such as SKF LGLT 2, Klüber ISOFLEX TOPAS NB 52, Multemp SRL, etc.

Further Customization: QIBR can design and optimize bearings based on customer working conditions and requirements.

QIBR - ACB3749H7 Bicycle Bearing Quality Control

Dimension measurement: Multiple professional high-precision instruments are used to measure various dimensions of the bearing, with the highest precision reaching 0.001mm.

Rotation accuracy: A dial indicator is used to measure minor defects or deviations on the bearing surface, with measurement accuracy up to 0.001mm.

Hardness measurement: The surface hardness of the bearing is measured with a hardness tester, with measurement accuracy up to ±0.5 HRC.

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

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

Noise monitoring: Vibration instruments are used to monitor vibration during operation and obtain noise data.

Raw material control: Steel and parts are procured from suppliers with ISO 14001 certification, ensuring product stability while promoting sustainable development.

ACB3749H7
The outer ring is made of high-purity special high-quality bearing steel processed by high-speed forging + cold rolling process.
The inner ring is made of high-purity special high-quality bearing steel processed by high-speed forging + cold rolling process.
The iron cage has the advantages of high strength, not easy to deform, and long service life.
Steel balls are G10 and above grade products, ensuring the steel ball material and processing accuracy.
Three-lip light contact sealing structure design, and the use of high temperature resistant imported acrylic rubber.
Grease is for sealed bearing type, and anti-rust oil is for open-type bearings.
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