- The bearing lubricator is an essential mechanical tool that provides precise lubrication and oiling for bearings, ensuring your equipment runs smoothly by delivering the right amount of grease while eliminating impurities. - Features a double O-ring seal construction that retains grease within the bearing. The inner bearing rings are designed to separate, allowing grease to flow effortlessly into the interior, enhancing lubrication efficiency. - Simplifies the maintenance process; no need to disassemble axle or suspension components. Simply insert the tool into the bearing and pump grease through the zerk fitting with your grease gun (gun not included). - Specifically engineered for Polaris UTV/ATV bearings with an inner dimension of 40 mm (1.57 inches), making it compatible with models such as Pioneer 1000 and Pioneer 1000-5. - Ideal for routine maintenance in recreational or utility vehicles, ensuring optimal performance during off-road adventures or work tasks. Use it to prolong the life of your vehicle's bearings and reduce downtime. - Perfect for DIY enthusiasts and professionals alike, this tool enhances maintenance efficiency and reliability while keeping your equipment in peak condition.