SG HF0812 Roller Bearings – 8x12x12mm (8pcs)

The SG HF0812 one-way roller bearings are precision-engineered components designed for compact mechanical applications, offering reliable performance in gearboxes, RC vehicles, robotics, and small engine setups. Measuring just 8mm inner diameter × 12mm outer diameter × 12mm width, these bearings are tailored for tight spaces where space efficiency is critical. Constructed from durable chrome steel, they deliver long-term durability under load, reducing friction and wear to keep your projects running smoothly.

With a one-way rotation function, these bearings enable controlled directional movement—ideal for clutch mechanisms, transmissions, or any application requiring unidirectional torque transfer. Their compact yet robust design makes them a versatile choice for DIY engineers, hobbyists, and professionals working on precision-driven projects. Whether integrating them into a gearbox, RC car, or custom robotics build, these bearings ensure quiet, efficient operation with minimal maintenance.

Each package includes 8 high-quality bearings, perfect for batch applications or spare parts storage. Weighing just 30 grams, they’re lightweight yet built to handle the demands of mechanical assemblies. Note that no batteries are required, as these components rely solely on their mechanical function. Suitable for a range of automotive and engineering projects, these bearings are a cost-effective solution for those seeking reliable performance in tight spaces.