S7204CD/P4A High Super Precision P4 Angular Contact Ball Bearings S7204 for Internal Grinding Machines
S7204CD/P4A is a high-performance angular contact ball bearing designed for ultra-precision and high-speed operation. The "CD" designation denotes a 15° contact angle, balancing radial load capacity with moderate single-directional axial load support. The "P4A" precision grade ensures ultra-low runout and tight dimensional control, while it’s crafted from GCr15 bearing steel—offering excellent hardness, wear resistance, and fatigue strength. Precision-ground raceways and superfinished balls minimize friction and vibration, enabling stable performance at extreme rotational speeds, making it a core component for precision transmission systems.
Sizes:
20mm ID × 47mm OD × 14mm Width
Interchange:
S7204CD/P4A (cross-brand equivalents such as SKF S7204CD/P4A, NSK S7204CD/P4A, INA S7204CD/P4A), and angular contact ball bearings with identical "20mm ID + 47mm OD + 14mm width + 15° contact angle + P4A precision grade" specifiions
Appliions:
CNC Machine Tool Spindles, High-Speed Precision Motors, Precision Gearboxes, Robotics Joints, Optical Equipment, and other scenarios requiring ultra-precision, high rotational speed, and reliable load-bearing performance.
| Parameter Item |
Details |
| Product Model |
S7204CD/P4A Angular Contact Ball Bearing |
| Inner Diameter (ID) |
20mm |
| Outer Diameter (OD) |
47mm |
| Width |
14mm |
| Type |
Angular Contact Ball Bearing |
| Contact Angle |
15掳 (Designation "CD") |
| Precision Grade |
P4A (Ultra-Precision) |
| Material |
GCr15 Bearing Steel |
2. Appliion
used in many areas of large steel mills, papermaking and speed .reducer, aviation,aerospace,marine,railway,metallurgy,steel, mining,electricity,machinery manufacturing,printing, electronics,textiles,food,chemical,automoti,spindle, internal combustion engines, generators, gas turbines, reducer11
3 . Product Description
Angular contact ball bearing can bear radial load and axial load at the same time. The contact angle is higher, the axial load capacity is higher, the high precision and high speed bearing usually take 15 degree contact angle.
Single row angular contact ball bearings only bear a direction of the axial load in the bearing radial load will cause additional axial force. And only limit shaft or shell in a direction of the axial displacement. Angular contact ball bearing contact angle is 40 degrees, so can bear great axial load.
4 . Our products
| Bearing No. |
d |
D |
B |
| 7000C |
10 |
26 |
8 |
| 7000AC |
10 |
26 |
8 |
| 7001C |
12 |
28 |
8 |
| 7001AC |
12 |
28 |
8 |
| 7002C |
15 |
32 |
9 |
| 7002AC |
15 |
32 |
9 |
| 7003C |
17 |
35 |
10 |
| 7003AC |
17 |
35 |
10 |
| 7004C |
20 |
42 |
12 |
| 7004AC |
20 |
42 |
12 |
| 7005C |
25 |
47 |
12 |
| 7005AC |
25 |
47 |
12 |
| 7006C |
30 |
55 |
13 |
| 7006AC |
30 |
55 |
13 |
| 7007C |
35 |
62 |
14 |
| 7007AC |
35 |
62 |
14 |
| 7008C |
40 |
68 |
15 |
| 7008AC |
40 |
68 |
15 |
| 7009C |
45 |
75 |
16 |
| 7009AC |
45 |
75 |
16 |
| 7010C |
50 |
80 |
16 |
| 7010AC |
50 |
80 |
16 |
| 7011C |
55 |
90 |
18 |
| 7011AC |
55 |
90 |
18 |
| 7012C |
60 |
95 |
18 |
| 7012AC |
60 |
95 |
18 |
| 7013C |
65 |
100 |
18 |
| 7013AC |
65 |
100 |
18 |
| 7014C |
70 |
110 |
20 |
| 7014AC |
70 |
110 |
20 |
