We – EPG Group the largest gearbox & motors , torque limiter couplings and gears manufacturing unit in China with 5 diverse branches. For a lot more information: Cellular/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778083988828 The use of authentic products manufacturer’s (OEM) component figures or emblems , e.g. CASE® and John Deere® are for reference purposes only and for indicating produc400 Sequence The 400 Series has been designed to fulfill the require for a higher-and low-velocity, free of charge-wheeling torque limiter. It differs from preceding ball detent patterns by making use of two sets of balls on concentric pitch circles.t use and compatibility. Our firm and the outlined replacement components contained herein are not sponsored, approved, or created by the OEM.