Angular Contact Ball Bearings 7400D Series

29° contact angle "D" indicates a duplex ground half pair matched with an identical half pair and is followed by an additional suffix letter to describe the type of duplex.

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Angular Contact Ball Bearings

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Angular Contact Ball Bearings

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Product Description

Product Details

29° contact angle
"D" indicates a duplex ground half pair matched with an identical half pair and is followed by an additional suffix letter to describe the type of duplex.

Bearing Number	d mm	D mm	B mm
7403-D	17	62	34
7404-D	20	72	38
7405-D	25	80	42
7406-D	30	90	46
7407-D	35	100	50
7408-D	40	110	54
7409-D	45	120	58
7410-D	50	130	62
7411-D	55	140	66
7412-D	60	150	70
7413-D	65	160	74
7414-D	70	180	84
7415-D	75	190	90
7416-D	80	200	96
7417-D	85	210	104
7418-D	90	225	108
7419-D	95	250	110
7420-D	100	265	120
7421-D	105	290	130
7422-D	110	320	140

Double row angular contact ball bearings are integral components in a wide range of mechanical applications, known for their unique design and exceptional performance capabilities.
Design and Structure
These bearings feature two rows of balls arranged in a back-to-back configuration. The load lines at the contact between the balls and raceways diverge at the bearing axis, forming an angle, typically 30°, with the radial plane. Structurally, they can be seen as a combination of two single-row angular contact ball bearings in a back-to-back setup within a single unit. This design allows them to accommodate significant radial and axial loads simultaneously.
Working Principle
The angular contact design enables double row angular contact ball bearings to effectively handle combined loads. When a load is applied, the balls distribute the force between the inner and outer rings. The angled contact helps in transmitting both radial and axial forces, making them suitable for applications where shafts need to be supported while experiencing forces from multiple directions. This design also provides enhanced rigidity and stability to the rotating system.
Advantages
High Load Capacity: With two rows of balls, they can withstand higher radial and axial loads compared to single-row bearings. This makes them ideal for heavy-duty applications.
Bi-Directional Axial Load Handling: They can support axial loads in both directions, eliminating the need for additional bearings in many cases. This simplifies the design and reduces space requirements.
Compact Design: They offer a more compact solution compared to using two separate single row angular contact ball bearings. This is especially beneficial in applications where space is limited.
Good Running Accuracy: The double row design helps in maintaining better running accuracy, reducing vibration and noise during operation. This is crucial for applications that require smooth and precise rotation.
Application Areas
Industrial Machinery: Used in equipment such as pumps, compressors, and conveyors, where they can handle the combined loads and ensure smooth operation.
Automotive Industry: Employed in automotive transmissions and wheel hubs, providing the necessary support and load handling capabilities.
Aerospace Applications: Their high load capacity and reliability make them suitable for use in aircraft engines and landing gear systems.
Machine Tools: In machine tool spindles, they contribute to high precision and stable operation, ensuring accurate machining processes.

AUTOMATIC DETECTION EQUIPMENT

The installation workshop and grinding machine workshop have been built to high standards, industry-leading production equipment and testing instruments have been introduced, and corresponding functional areas such as warehouses and dormitories have been equipped to create a first-class hardware environment.

TRANSACTION CREDENTIALS

FACTORY

The company is located in Panzhuang Industrial Park, Linqing, with a total construction area of more than 30,000 square meters. The installation workshop and grinding machine workshop have been built to high standards, industry-leading production equipment and testing instruments have been introduced, and corresponding functional areas such as warehouses and dormitories have been equipped to create a first-class hardware environment.

Exhibition

The products have reliable quality and stable performance and are sold well in the national market and exported to Southeast Asia, Europe, South America, the Middle East and other regions. They enjoy a good reputation in the international market and have contributed the wisdom and power of Made in China to the development of global industrialization!

FAQ

Q: Are you a manufacturer?

A: Yes , we are a manufacturer, We have own factory, We have a leading power in producing and exporting galvanized steel coil,galvalume steel coil,ppgi etc. We promise that we are what you are looking for.

Q: Can we visit your factory?

A:Warmly welcome once we have your schedule we will pick you up .

Q: Can you arrange the shipment?

A: Sure, we have permanent freight forwarder who can gain the best price from most ship company and offer professional service.

Q: How long is your delivery time?

A:Generally it is 10-35 days .it is according to quantity.

Q: How do you make our business long-term and good relationship ?

A:1.We keep good quality and competitive price to ensure our customers' benefit.
2.We respect every customer as our friend and we sincerrly do business and make friends with them, no matter where they come from.

Angular Contact Ball Bearings