Do you know 6005ZZ deep groove ball bearing type?

The 6005ZZ deep groove ball bearing consists of an outer ring, an inner ring, a set of steel balls, and a set of retaining structures.
The 6005ZZ deep groove ball bearing has two types of structures: sealed and open. Open type refers to the bearing without a sealed structure, while sealed deep groove balls are divided into dust-proof and oil proof seals. The dustproof sealing cover material is stamped steel plate, which only plays a simple role in preventing dust from entering the bearing raceway. The oil proof type is a contact type oil seal, which can effectively prevent the lubricating grease inside the bearing from overflowing.

The main materials for the 6005ZZ deep groove ball bearing include chrome steel, stainless steel, ceramics, plastics, etc. The selection of materials varies depending on the components and working conditions. High carbon chromium bearing steel (such as GCr15/SUJ2) is commonly used for rings and steel balls, while cold-rolled steel strips, resin composite materials, or special alloys are selected for retainers according to the application scenario. ‌‌

High carbon chromium steel 6005ZZ deep groove ball bearing: The typical model is GCr15 (corresponding to Japanese standard SUJ2), with a carbon content of about 1% and a chromium content of 1.5%. After heat treatment, the hardness reaches HRC60-64, with excellent wear resistance and fatigue strength, suitable for the vast majority of industrial scenarios. ‌‌
Stainless steel 6005ZZ deep groove ball bearing: SUS440C (9Cr18Mo), SUS316 (0Cr17Ni12Mo2), and SUS304 (1Cr18) are commonly used. The former has a hardness of HRC58 and corrosion resistance, making it suitable for humid or corrosive environments such as food processing and medical equipment. ‌‌
Ceramic materials 6005ZZ deep groove ball bearing: including aluminum oxide (Al ₂ O ∝) and silicon nitride (Si ∝ N ₄), with low density, high temperature resistance (up to 1200 ℃), and non-magnetic insulation properties, used in special fields such as high-speed motors and precision instruments. ‌‌

The materials of plastic 6005ZZ deep groove ball bearing mainly include POM and PA (polyoxymethylene and nylon). Specifically, the inner and outer ball materials of plastic bearings are usually made of POM or PA, while the cage is made of glass fiber reinforced nylon 66 (GRPA66-25)
The advantage of plastic deep groove ball bearings lies in their lightweight design and low friction coefficient, which makes them perform well in applications that require weight and friction reduction. In addition, plastic bearings have good corrosion resistance and low production costs, making them suitable for some special environments or cost sensitive applications.