Exhibit 21.1

	Jurisdiction of Incorporation
Altra Industrial Motion Corp.,		Delaware
- Guardian Couplings LLC,		Delaware
- Nuttall Gear LLC,		Delaware
- Ameridrives International, LLC,		Delaware
- Formsprag LLC,		Delaware
- Warner Electric LLC,		Delaware
- Warner Electric Technology LLC,		Delaware
- Svendborg Brakes USA, LLC		Delaware
- Boston Gear LLC,		Delaware
- Bauer Gear Motor LLC,		Delaware
- Inertia Dynamics, LLC,		Delaware
- Kilian Manufacturing Corporation,		Delaware
- Kilian Canada ULC,		Canada
- TB Wood’s Corporation,		Delaware
- TB Wood’s Incorporated,		Pennsylvania
- T.B. Wood’s Canada Ltd.,		Canada
- Industrial Blaju, S.A. de C.V.,		Mexico
- Altra Industrial Motion (Thailand) Ltd.,		Thailand
- Warner Electric International Holding, Inc.,		Delaware
- Altra Industrial Motion Netherlands C.V.,		Netherlands
- Altra Industrial Motion Netherlands B.V.,		Netherlands
- Warner Electric Group GmbH,		Germany
- Stieber GmbH,		Germany
- Warner Electric (Neth) Holding B.V.,		Netherlands
- Altra Industrial Motion Australia Pty. Ltd.,		Australia
- Altra Industrial Motion Hong Kong Limited		Hong Kong
- Altra Industrial Motion (ShenZhen) Co., Ltd.,		China
- Altra Industrial Motion Singapore Pte. Ltd.		Singapore
- Altra Industrial Motion Taiwan Ltd.		Taiwan
- Warner Electric UK Group Ltd.,		United Kingdom

- Warner Electric UK Holding, Ltd.,	United Kingdom
- Wichita Company Ltd.,	United Kingdom
- Hay Hall Holdings Ltd.,	United Kingdom
- The Hay Hall Group Ltd.,	United Kingdom
- Matrix International Ltd.,	United Kingdom
- Matrix International GmbH,	Germany
- Bibby Group Ltd.,	United Kingdom
- Bibby Transmissions Ltd.,	United Kingdom
- Bibby Turboflex (SA) (Pty.) Ltd.,	South Africa
- Turboflex Ltd.,	United Kingdom
- Torsiflex Ltd.,	United Kingdom
- Huco Power Transmission Ltd.,	United Kingdom
- Huco Engineering Industries Ltd.,	United Kingdom
- Dynatork Air Motors Ltd.,	United Kingdom
- Dynatork Ltd.,	United Kingdom
- Twiflex Ltd.,	United Kingdom
- Saftek Ltd.,	United Kingdom
- Bauer Gear Motor Limited,	United Kingdom
- Bauer Gear Motor GmbH,	Germany
- Bauer Gear Motor Europe GmbH,	Germany
- Bauer Gear Motor Slovakia s.r.o.,	Germany
- Bauer Gear Motor Finland Oy Ab,	Finland
- Altra Industrial Motion Russia OOO,	Russia
- Altra Industrial Motion Ukraine TOV,	Ukraine
- Altra Industrial Motion (Changzhou) Co., Ltd.	China
- Warner Electric (Holding) SAS,	France
- Warner Electric Europe SAS,	France
- Altra Industrial Motion do Brasil S.A.,	Brazil
- Altra Industrial Motion Denmark ApS,	Denmark
- S.B. Patent Holding ApS,	Denmark
- Svendborg Brakes ApS,	Denmark
- Svendborg Brakes Espana S.A.,	Spain
- Svendborg South Africa Pty. Ltd.,	South Africa

- Svendborg Brakes Australia Pty. Ltd.,	Australia
- Svendborg Brakes Korea Co. Ltd.,	Korea
- Svendborg Brakes Chile Ltd.,	Chile
- Svendborg Brakes India Ltd.,	India
- Svendborg Brakes Shanghai Co. Ltd.,	China
- Svendborg Brakes Trading (Shanghai) Co. Ltd.,	China