美国（西尔玛）SEALMASTER创建于1935年,1983年并入世界500强企业美国爱默生公司EPT旗下.是北美大型的连座轴承生产商.美国SEALMASTER的带座轴承，日夜不停的运转于可口可乐生产线、玻璃瓶生产线、钢铁生产线、海上钻井平台以及各种极端恶劣环境下工作的机器上，肩负着最繁重的工作和最大的责任。当然，长时间正常和平稳的运转有赖于在各方面表现都极为出众的SEALMASTER带座轴承，在这一领域内的佼佼者。
SEALMASTER轴承广泛应用于电力,钢铁,石油工业等领域.其轴承保持架全部是铜制的,内圈滚道区域经过硬化处理,提高了轴承的耐磨性.该轴承密封性能良好,密封圈使用SEALMASTER公司的专利产品,适用于粉尘大,工况差等场合.其最大内经5英寸(127MM)。
根据SEALMASTER轴承工作状况和工作环境对密封程度的要求，在工程设计上常常是综合运用各种密封形式，以达到更好的密封效果。对轴承外加密封的选择应考虑下列几种主要因素：
1、SEALMASTER轴承润滑剂和种类（润滑脂和润滑油）；6、制造成本。
| 5206TMC | 5212TMC | AR 12N | AR-209 | AR-2-19 | ARE 6N | BTS 24LS |
| EMP-31 | EMP-35 | ER-12 | ER-12T | ER-16 | ER-16T | ER-16TC |
| ER-18T | ER-19 | ER-20 | ER-204TMC | ER-205 | ER-205TMC | ER-206TMC |
| ER-207 | ER-208TMC | ER-20T | ER-210TMC | ER-211TMC | ER-212TMC | ER-22T |
| ER-23C | ER-23TC | ER-24T | ER-24TC | ER-27 | ER-28 | ER-28TC |
| ER-29 | ER-31 | ER-32 | ER-35 | ER-35T | ER-36 | ER-38 |
| ER-38T | ER-39 | ER-39C | ER-40 | ER-43 | ER-55 | ERX-19XLO |
| ERX-205XLO | ERX-210LO | ERX-23XLO | ERX-24LO | ERX-24XLO | ERX-28XLO | ERX-32R XLO |
| ERX-32XLO | ERX-32XLO | ERX-PN16T | ESF-24C | ESF-24T | ESF-24T AIF | ESF-24T AMD |
| ESF-32T | ESF-32T AMD | ESF-32T BMG | ESF-36T AMD | FB-210 | MFC-16 | MFC-23T |
| MFC-24T | MFC-28 | MFC-28T | MFC-308 | MFC-309 | MFC-31 | MFC-310 |
| MFC-313 | MFC-315 | MFC-32 | MFC-39 | MFC-40 | MFC-47 | MFC-48 |
| MFC-56 | MFC-63 | MFCD-31 | MFCD-35 | MFCD-47 | MFP-310 | MFPD-79 |
| MP-24T | MP-28T | MP-31 | MP-31T | MPD-31 | MPD-31 CXU | MPD-35 |
| MPD-47 | MPD-56 | MSC-32T | MSF-31 | MSF-47 | MSFPD-55 | MST-47 |
| NP-12 | NP-16 | NP-20 | NP-207TMC | NP-208TMC | NP-209TMC | NP-210 |
| NP-211 | NP-211TMC | NP-22T | NP-23T | NP-23TC | NP-24T | NP-26T |
| NP-27T CXU | NP-28T | NP-31 | NP-31T | NPL-10 | NPMH-27T | RCI 207 |
| RFB 107C | RFB 200C | RFB 204C | RFB-315 | RFPA 300C | RPB 207-4 | RPB 208-C2 |
| RPB 215-2 | RPB 307-2 | RPB 90MM-4 | SC-12 | SEHB-208 | SEHB-24 | SEHB-31 |
| SEHB-35 | SF-14 | SF-15T | SF-16 | SF-16T | SF-20R | SF-23T |
| SF-24 | SF-28T | SF-32 | SF-32R | SFC-206TMC | SFC-209 | SFC-20T |
| SFC-22 | SFC-22T | SFC-24C | SFC-31 | SFC-36T | SFC-47 | SFT 12T |
| SFT-10 | SFT-12 | SFT-15TC | SFT-16T | SFT-205TMC | SFT-24TC | SFT-28TC |
| SFT-30 | SFT-32 | SFT-8 | SFTMH-19T | SP-28T | SP-31 | SP-34 |
| SP-36 | SRF-20R | ST-23 | TB-206TMC | TBMH-27T | USFB5000-108 | USFC5000-108-C |
| USFC5000-112 | USFC5000-207 | USFC5000A-108 | USFCE5000-200 | USFCE5000-208 | USFCE5000-307 | USFCE5000-307 |
| USFCE5000E-208 | USFCE5000E-208-C | USRB5000-200 | USRB5000-211 | USRB5000-215 | USRB5000-215 | USRB5000E-307-C |
| USRB5522A-315 | USRBE5000-212-C |
