Miniature angular contact ball Bearings

MONTON can produce Miniature bearings from 705 to 7008 open type and  seals type.

Miniature angular contact ball Bearings also known as small bearings or micro bearings,MONTON  Miniature angular 

contact ball bearings are designed to operate in applications that require compactness, low friction, and high rotational 

precision. Miniature angular Contact or Spindle bearings fall between 3mm inner diameteand 25mm inner diameter. 

Spindle bearings are single-row angular contact bearings with a nominal contact angle of 15° (C) or 25° (E). They can 

be subjected to both radial and (in one direction) axial loads. The direction of the axial load is shown by a “V” marking 

on the outer ring. Miniature spindle ball bearings are suitable for applications requiring precision while carrying high load 

combined with high speed. 

Miniature bearings are used in many applications, such as Linear transmission equipment,Machine tool workpiece shaft 

and grinding wheel shaft,High speed electric shaft (wood carving, stone carving, etc.),Planetary reducer,Drill head shaft，

Servo motor, drone, automatic production line,5G base station small fan, motor production line winding, activity monitoring 

Control probe Precision Measuring Instruments 3D Printer ,Aerospace etc.

MONTON miniature angular contact ball Bearings list:

7000Series(C ,AC and A contact angle):

Open ： 7 0 5 、7 0 6 、7 0 7 、7 0 8 、 7 0 9 、7 0 0 0 、7 0 0 1 、7 0 0 2 、7 0 0 3 、

7 0 0 4 、7 0 0 5 、7 0 0 6 、7 0 0 7 、 7 0 0 8 ；

Sealed： 7 0 6 - Z Z 、7 0 8 - 2 R S 、7 0 0 0 - 2 R S 、7 0 0 1 - 2 R S 、7 0 0 2 - 2 R S 、

7 0 0 3 - 2 R S 、7 0 0 4 - 2 R S 、7 0 0 5 - 2 R S 、7 0 0 6 - 2 R S 、7 0 0 7 - 2 R S 、

7 0 0 8 - 2 R S .

7200Series(C ,AC and A contact angle):Open： 

7 2 3 、7 2 4 、7 2 5 、7 2 6 、7 2 7 、 7 2 8 、7 2 9 、7 2 0 0 、7 2 0 1 、7 2 0 2 、

7 2 0 3 、7 2 0 4 、7 2 0 5 、7 2 0 6 、7 2 0 7 、7 2 0 8 、7 2 0 9 、7 2 1 0 、7 2 1 1 、7 2 1 2 ；

Sealed： 7 2 0 2 - 2 R S 、7 2 0 5 - 2 R S 、7 2 0 6 - 2 R S .

71800Series(C ,AC and A contact angle):

Open： 7 1 8 0 0 、7 1 8 0 1 、7 1 8 0 2 、 7 1 8 0 3 、7 1 8 0 4 、7 1 8 0 5 、 7 1 8 1 2 、

7 1 8 1 6 ；

Sealed： 7 1 8 0 0 - 2 R S 、7 1 8 0 1 - 2 R S 、 7 1 8 0 2 - 2 R S 、7 1 8 0 3 - 2 R S 、 

7 1 8 0 4 - 2 R S 、7 1 8 0 5 - 2 R S

71900Series(C ,AC and A contact angle):

Open： 7 1 9 / 4 、7 1 9 / 5 、7 1 9 / 6 、 7 1 9 / 7 、7 1 9 / 8 、7 1 9 / 9 、7 1 9 0 0 、

7 1 9 0 1 、7 1 9 0 2 、7 1 9 0 3 、7 1 9 0 4 、 7 1 9 0 5 ；

Sealed： 7 1 9 0 0 - 2 R S 、7 1 9 0 1 - 2 R S 、7 1 9 0 2 - 2 R S

Our normal stock items: 

7 0 6 、7 0 8 、7 0 9 、7 0 0 0 、7 0 0 1 、7 0 0 2 、7 1 9 / 6 、7 1 9 / 8 、71 9 0 0 、7 2 9

MONTON Miniature Angular Contact  ball bearings have following characterizes:

1.Precision level: P4 (ABEC7) 

2.Rings:Rings made Gcr15 bearing steel,440C Stainless or 52100 Chromium steel;

3.Balls:Steel or ceramic balls;

4.Cage:Solid retainer made from fiber-reinforced phenolic resin, peek;

5.Contact angle:15° (C) or 25° (E) contact angles

6.Paired with three predefined preload classes (L, M, or S) or to a customer request;

7.Oil or grease lubrication;

8.Open and seales both available;

9.Cleanroom assembly, lubrication, and packaging.

Miniature angular contact bearings are critical components in high-speed and high-precision applications. Their design 

and working principles enable them to handle both axial and radial loads. Depending upon the bearing material specified, 

they have excellent performance characteristics in harsh environments. 

The choice of material and design of the bearing determine the load capacity and speed rating of the bearing. With their 

small size and high load capacity, miniature angular contact bearings play a crucial role in many industrial and medical 

applications.

Contact MONTON for more inforamtion.