Stainless steel bearings are normally made of AlS/440C and AlSI304, but the materials are available for specific use inorder.
Material:
| PART NAME | MATERIAL | |||
Bearing ring | AISI440C 9Cr18 | AISI440B 9Cr18Mo | AISI304 OCr18Ni9 | AISI316 0Cr17Ni12Mo2 |
Ball | AISI440 | AISI440C | AISI304 | AISI316 |
Rtainer | AISI304 | AISI304 | RS | ZZ |
The chemical composition of different stainless steel numbers:
| Stainless steel NO. | C％ | Cr％ | Si％ | Mn％ | S％ | P％ | Mo％ | Ni％ |
| AISI440 | 0.90-1.00 | 17-19 | ≤0.8 | ≤0.8 | ≤0.03 | ≤0.035 | ||
| AISI440C | 0.65-1.10 | 16-18 | ≤0.8 | ≤0.8 | ≤0.03 | ≤0.035 | ≤0.75 | |
| AISI304(304L) | ≤0.07 | 17-19 | ≤1 | ≤2 | ≤0.03 | ≤0.035 | 8-11 | |
| AISI316(316L) | ≤0.08 | 16-18.5 | ≤1 | ≤2 | ≤0.03 | ≤0.035 | 2-3 | 10-14 |
The chemical composition of different stainless steel numbers:
Country | China | U.S.A | Germany | Japan | France | |
DIN | W-Nr | |||||
Bearing | 9Cr18 | AISI440B | X90CrMoV18 | 1.4112 | SUS440 | Z105CrMo17 |
9Cr18Mo | AISI440C | X105CrMo17 | 1.4125 | SUS440C | Z105CrMo17 | |
0Cr18Ni9 | AISI304 | X5CrNi18-10 | 1.4301 | SUS304 | Z7CN18-09 | |
0Cr17Ni12Mo2 | AISI316 | X5CrNiMo17-12-2 | 1.4401 | SUS316 | Z7CND18-12-03 | |