1. Material of bearing
The inner and outer rings of the bearing are turned by a lathe processing plant, and the accessories are strictly controlled to ensure that the bearing has a stable quality in the first production process. The bearing rings and steel balls are made of refined bearing steel; the cage is made of high-quality cold-rolled steel plate stamping or reinforced engineering plastics; the dust cover is made of SPCC, and the sealing ring is made of nitrile and oil-resistant rubber. The comparison of bearing steel model with ISO and other standards is as follows:
Standard | Steel Model indication |
GB/T307-94 | Gcr15 |
ISO | 683XVII1 |
AISI | 52100 |
DIN | 100Gr6 |
JIS | SUJ2 |
Bearing accuracy can be divided into 2, 4, 5, 6, and 0 grades according to the national standard of GB/T307-94
Standard | Precision level | ||||
GB/T307-94 | 2 | 4 | 5 | 6 | 0 |
ISO | Class2 | Class4 | Class5 | Class 6 | Normal Class |
AISI | P2 | P4 | P5 | P6 | P0 |
DIN | ABEC9 | ABEC7 | ABEC5 | ABEC3 | ABEC1 |
JIS | JIS2 | JIS4 | JIS5 | JIS6 | JIS0 |
3. Clearance of bearing
ID (mm) | C2 | C0 | C3 | C4 | C5 | ||||||
ID Range | Min | Max | Min | Max | Min | Max | Min | Max | Min | Max | |
2.5 | 10 | 0 | 7 | 2 | 13 | 8 | 23 | 14 | 29 | 20 | 37 |
10 | 18 | 0 | 9 | 3 | 18 | 11 | 25 | 18 | 33 | 25 | 45 |
18 | 24 | 0 | 10 | 5 | 20 | 13 | 28 | 20 | 36 | 28 | 48 |
4.Bearing vibration and noise
Nominal ID of bearing | The vibration acceleration level (dB) of a single bearing does not exceed | |||||||
Serie Diameter I | Serie Diameter II | Serie Diameter III | ||||||
Z1 | Z2 | Z1 | Z2 | Z3 | Z1 | Z2 | Z3 | |
5 | 36 | 34 | 37 | 34 | 32 | 37 | 35 | 33 |
6 | 36 | 34 | 37 | 34 | 32 | 37 | 35 | 33 |
7 | 38 | 35 | 38 | 36 | 34 | -- | -- | -- |
8 | 38 | 35 | 38 | 36 | 34 | -- | -- | -- |
9 | 40 | 36 | 40 | 37 | 35 | -- | -- | -- |
10 | 42 | 38 | 42 | 39 | 35 | 44 | 40 | 37 |
12 | 43 | 39 | 43 | 39 | 35 | 45 | 40 | 37 |
15 | 44 | 40 | 44 | 41 | 36 | 46 | 42 | 38 |
17 | 44 | 40 | 45 | 41 | 36 | 47 | 42 | 38 |
20 | 45 | 41 | 46 | 42 | 38 | 48 | 43 | 39 |
25 | 46 | 42 | 47 | 43 | 40 | 49 | 44 | 41 |
30 | 47 | 43 | 48 | 44 | 41 | 50 | 45 | 42 |
Nominal ID of bearing | V1 | V2 | V3 | ||||||
LF | MF | HF | LF | MF | HF | LF | MF | HF | |
5 | 90 | 60 | 50 | 58 | 36 | 30 | 35 | 21 | 18 |
6 | 90 | 60 | 50 | 58 | 36 | 30 | 35 | 21 | 18 |
7 | 110 | 80 | 65 | 72 | 48 | 40 | 44 | 28 | 24 |
8 | 110 | 80 | 65 | 72 | 48 | 40 | 44 | 28 | 24 |
9 | 110 | 80 | 65 | 72 | 48 | 40 | 44 | 28 | 24 |
10 | 140 | 100 | 85 | 90 | 60 | 50 | 55 | 35 | 30 |
12 | 140 | 100 | 85 | 90 | 60 | 50 | 55 | 35 | 30 |
15 | 180 | 130 | 100 | 110 | 78 | 60 | 65 | 46 | 35 |
17 | 180 | 130 | 100 | 110 | 78 | 60 | 65 | 46 | 35 |
20 | 220 | 160 | 125 | 130 | 100 | 75 | 80 | 60 | 45 |
22 | 220 | 160 | 125 | 130 | 100 | 75 | 80 | 60 | 45 |
25 | 220 | 160 | 125 | 130 | 100 | 75 | 80 | 60 | 45 |
28 | 220 | 160 | 125 | 130 | 100 | 75 | 80 | 60 | 45 |
30 | 250 | 200 | 160 | 150 | 120 | 100 | 90 | 75 | 60 |
Contact : Mr.Jimmy
Tel : +86 755-28993894
Mobile : 15606681685
Email : jimmy@hccprecision.com
Address : Building A, Baocheng Taizhihui Industrial Park, No. 8 Caiyun Road, Longgang District, Shenzhen