MONTON B719XX extremely light Series Angular Contact Ball Bearings diameter from 10-670

mm . B719XX extremely light Series Angular Contact Ball Bearings are mainly used in applicationwhere available space is limited. They are high-speed bearings with a compact cross-section 

design. MONTON offers products with light series contact angles of 15°, 20° and 25°. 

Ultra-light series angular contact ball bearings can use small or large balls, steel balls or 

ceramic balls, open and sealed bearings, DLR designed bearings, and ultra-light series angular 

contact ball bearings with smaller contact fit and small steel balls. Therefore, it can adapt to 

very high speeds, and the same inner diameter bearing load capacity of the bearing is lower 

than the 70/72 series.

MONTON B719XX extremely light  Series Angular Contact Ball Bearings are mainly suitable for 

light-load, high-speed and high-rigidity applications. Machine tool applications such as 

high-speed milling machines, machining centers and grinders have high requirements for 

positioning accuracy and need to generate very little heat. The B719XX extremely light  Series 

Angular Contact Ball Bearings can meet the requirements of these applications and have high 

rigidity at high speeds, making them a suitable solution for such applications. MONTON 

B719XX extremely light  Series Angular Contact Ball Bearings are loaded with the largest 

number of small balls. 

Smaller and lighter balls reduce the centrifugal load acting on the outer ring raceway, thereby 

reducing the rolling contact surface stress. Since smaller balls require less space, the bearing 

rings have a larger cross-sectional height, making them insensitive to deformation caused by 

irregularities in the bearing mounting surface, bearing seat or shaft. The outer ring of the 

direct-lubricated bearing has an annular groove with two lubrication holes and two annular 

grooves equipped with O-rings for direct oil lubrication. In applications where high speeds are 

required, bearings equipped with ceramic balls and capable of direct oil lubrication can exert 

their performance.

MONTON's different bearing variant designs include:

1. Single installation U (universal) or assembled in group ad D (Double) T (Triple) Q (Quater), etc. 

2. Universal bearings or universal bearing sets

3. Bearings using steel balls or hybrid ceramic ball bearings

4. Open bearings or bearings with seals on both sides

5. Bearings directly lubricated through the circumferential lubrication grooves and 

radial lubrication holes on the outer ring of the bearing

6. Preload is divided into three types: light L, medium M, and heavy H

Main applications include:

1. Machining center

2. Milling machine/lathe/boring machine

3. External cylindrical and surface grinders

4. Cutting or polishing stone and glass Machine tools

5. Semiconductor industry, etc., fault detection unit on silicon wafers

6. Marine gyro stabilizers

7. Telescopes

8. Gas turbine engines

9. Racing/supercar wheels

10. Medical equipment

11. Spindle for PCB drilling

12. Woodworking machine tools

13. Turbomolecular pumps

Our company has professional sales and technical engineers who are responsible for providing 

users with technical consultation, technical services and product technical training on precision 

bearing information and installation and application. Perfect pre-sales, in-sales and after-sales 

services constitute a guarantee system for high-quality services, providing users with reliable 

quality bearing products, and creating excellent user experience and rich benefits for every user.

If you have any questions about products and services, please contact the company's service 

department directly.