Apex Precision Mechatronix Pvt. Ltd. Offers Seal Type Linear Motion Bush. Apex Precision Mechatronix Pvt. Ltd. Supplies Linear Motion Systems, Pneumatic Products, Gears, Racks & Pinions, ACS Motion Control, Safety Couplings, Precision Locknuts Locking Elements, etc. Apex Precision Mechatronix Pvt. Ltd is ISO certified company. The Seal Type Linear Motion Bush has the same dimensions as the standard type, but special rubber seals are installed on one side or on both sides of the linear bushy to prevent entry of foreign matter and to prevent leakage of grease. Seal types also exist for the clearance adjustment type and the open type.