40Pcs 687ZZ Ball Bearing Assortment Kit 7x14x5mm Carbon Steel Deep Groove Bearings Miniature Bearings Double Shielded

In this set, you will get 40pcs 687ZZ ball bearings. Outer diameter: 14mm/0.55", Inner diameter: 7mm/0.2", Width: 5mm/0.2". Sufficient quantity can meet your replacement needs. The bearings are pre-lubricated and easy to maintain. Made of carbon steel, these deep groove bearings provide excellent durability and resistance to deformation under heavy loads. Absorb vibration and impact, reduce noise, reduce energy loss and improve transmission efficiency. Good strength and wide range of applications. Pre-lubricated, suitable for long-term low demand applications. Ball bearings keep lubricant inside, ensuring smooth operation and reducing the need for frequent maintenance and making them easy to maintain. You can also re-apply lubricant as needed to promote longevity. We have prepared a sturdy box for you. These deep groove bearings are well packed together. Don't worry about getting it dirty or losing. It is easy to store and carry, bringing convenience to your life. This component is made of carbon steel with an untreated jet black exterior. Designed for low speed operation of less than 200rpm, it features an inner bore with a machining tolerance of ±0.8mm. It is well suited for low demand applications such as slow speed transmission equipment, casters and toy vehicles