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Angular Contact Ball bearings

Angular contact ball bearings have a high limit speed and can bear both radial and axial loads, as well as pure axial loads. Their axial load capacity is determined by the contact angle and increases as the contact angle increases.

ZMS supply angular contact ball bearings including:

7200 series, 7300 series, suit for to bear axial and radial load working conditions.

7000 series, 7200 series, 71800 series and 71900 series, suit for spindle tool. We have sealed type for better maintenance and control strictly on grease.

H7000 series, H71800 series and H71900 series, suit for high speed spindle and can supply ceramic ball and sealing type.

Size: inner diameter from 6mm-150mm

Angular Contact: 15°，25°，40°

We can supply universal pairing or paired angular contact ball bearing.

Precision: P6, P5, P4, P4A, P2, P2A.

Ball screw support bearings:
– 7602012TVP–7602100TV
– 7603020TVP–7603100TV
– 15TAC47BSUC10PN7B—100TAC150BSUC10PN7B

Precision: P5, P4, P2.

We can supply universal pairing or paired ball screw support bearing.

The working life is much closing famous brand and can be a good substitute of famous brand with good price performance.

Product SERIES

Four Point Contact Bearings

Double Row Angular Contact Ball Bearings

Super Precision Angular Contact Ball Bearing

Single Row Angular Contact Ball Bearing

Miniature Angular Contact Bearings

High Rigidity

Our angular contact bearings offer exceptional rigidity, ensuring precise performance under demanding conditions, such as maintaining accurate alignment and minimizing deflection even under heavy loads.

Low Noise

Through precision manufacturing, we can achieve best low noise under 30db.

High Speed

ZMS using vacuum degassing in steel processing to achieve low oxygen content, enabling them to operate at speeds up to 50,000 rpm with exceptional performance.

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High Precision

ZMS can supply precision from P0,P6,P5,P4 and P2 of Chinese GB standard.

Long Working Life

By utilizing high-nitrogen bearing steel and employing a bainite quenching process, our angular contact bearings achieve long service life at high speeds.

Customization

Our angular contact ball bearings are customizable in terms of rotation speed, load capacity, contact angle, clearance, and assembly methods, allowing us to deliver tailored solutions that meet specific application requirements effectively.

Substitute famous brand

Through our investment in 8 advanced automated intelligent bearing production lines and a range of precision testing equipment, we ensure that our bearings in someway can substitute famous brand.

Factory View

Angular contact ball bearing manufacturing equipment1

Angular contact ball bearing manufacturing equipment2

Angular contact ball bearing manufacturing equipment3

Frequently Asked Question

What types of angular contact ball bearings can you supply?

ZMS can supply following series:
– Single row angular contact ball bearings 70 series, 72 series, 73 series, 74 series, 718 series, 719 series
– Double row angular contact ball bearings
– Four point contact angular contact ball bearings
– Ball screws 7600series and TAC series
– High speed and high precision angular contact ball bearings
– Paired angular contact ball bearings
– Sealed angular contact ball bearings
– Low friction angular contact ball bearings
– RV reducer bearings

What material of angular contact ball bearings do you use?

We use high-purity chrome steel, high nitrogen chrome steel or 9cr18mo for rings.
Balls: steel or ceramic
Cage: steel, nylon, bakelite, synthetic resin, brass

What need to consider when choosing angular contact ball bearings?

We need to consider load, speed, and operating environment.Generally, the greater the load and the higher the speed, the higher the precision and the smaller the contact angle of the bearing need to be to meet the requirements of high load and high-speed operation.

At the same time, when the operating environment is harsh or the bearing is subjected to vibration and impact during operation, it is also necessary to select bearing products with higher vibration resistance and impact resistance.

What happens if I install a single row angular contact bearing backward?

If mounted incorrectly against the direction of the axial load, the bearing balls will ride up the low shoulder of the raceway, leading to immediate cage fracture, extreme heat, and catastrophic bearing failure within minutes.

Why do high-speed spindles use ceramic balls in angular contact bearings?

Using silicon nitride (ceramic) balls creates a hybrid bearing. The ceramic balls are lighter, reducing centrifugal forces on the outer ring at high speeds. This drastically lowers operating temperatures and extends grease life in CNC spindles.

Do I need to manually set the internal clearance for universally matched bearings?

No. When ZMS universally matched bearings are mounted directly adjacent to each other (in DB or DF configurations), they automatically achieve the pre-determined internal clearance or factory preload (e.g., Light, Medium, or Heavy preload) without manual adjustment.

Optimizing Your Contact Angle (15°, 25°, 40°)

The performance of an angular contact bearing is dictated by its contact angle. A larger angle increases axial load capacity, while a smaller angle allows for higher speeds. ZMS offers standard suffixes to match your application:

C Suffix (15° Angle): Optimized for ultra-high speeds and minimal friction. The standard choice for precision CNC machine tool spindles.
AC Suffix (25° Angle): A balanced design offering higher axial capacity than the 15° design, while still supporting excellent rotational speeds.
B Suffix (40° Angle): Engineered for maximum axial load carrying capacity. Ideal for heavy-duty pumps, blowers, and gearboxes where thrust forces are extreme.

Universally Matchable Sets for Easy Installation

Because a single-row angular contact bearing can only support axial loads in one direction, they are typically mounted in pairs. ZMS provides Universally Matchable Bearings (Suffix U). These bearings are precision-ground at the factory so they can be mounted in any arrangement immediately out of the box, without the need for custom shimming:

Back-to-Back (DB): Offers the highest stiffness and resistance to overturning moments. Ideal for standalone bearing arrangements.
Face-to-Face (DF): Better accommodates slight shaft misalignments and is less sensitive to thermal expansion.
Tandem (DT): Used when the axial load in one direction is too massive for a single bearing to handle.

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