1. The inner and outer rings and rolling elements of the rolling bearing are made of high-strength and wear-resistant chromium-manganese high-carbon steel, with high hardness, and the working surface requires friction polishing; 2. The cage is made of softer materials, usually low-carbon steel; the bearing material bearing Inner and outer rings and balls vacuum degassed high carbon chromium bearing steel GCR15 is the standard material for the production of precise inner and outer rings and balls. The material conforms to the American AISL 52100, German DIN100Cr6, and Japanese JISSUJ2 specifications. The material of making the bearing|Chemical composition of bearing steel|Bearing steel introduction The material of the inner and outer rings of the bearing and the steel ball is bearing steel (vacuum heat treatment). Most of the bearings use SUJ2 in the JIS steel grade, which is the domestic chromium steel (GCr15). The chemical composition of SUJ2 has been standardized as a bearing material in countries around the world. For example: it is the same kind of steel as AISL52100 (USA), DIN100Cr6 (West Germany), BS535A99 (UK). The use of this material effectively improves the bearing torque performance, reduces noise and prolongs life. However, in humid or high temperature environments, martensitic stainless steel materials are required. Rolling bearing steel: GCr15, GB/T18254-2000 'High Carbon Chromium Bearing Steel' unified digital code and chemical composition B00150GCr15CSiMnCr0.95~1.050.15~0.350.25~0.451.4~1.65 Note: 1 Residual copper in bearing steel pipe steel The content (melting analysis) should not be more than 0.20%. 2 The oxygen content is determined on the billet or steel. 3 The sulfur content (smelting analysis) of steel for wire rod shall not exceed 0.020%. Austenitic stainless steel: 1Cr18Ni9, GB 1220—92 'Stainless Steel Rod' grade chemical composition 1Cr18Ni9CSiMnPSNiCrMo≤0.15≤1.00≤2.00≤0.035≤0.0308.00~10.0017.00~19.00-Martensitic stainless steel: 9Cr1, GB 3086— 82 'High carbon chromium stainless bearing steel' grade chemical composition 9Cr18CSiMnPSCrMo not more than 0.90~1.000.80.80.0350.0317.00~19.00-Bearing retainer (frame) dust cover sealing ring material

Material inner and outer rings, steel ball bearings Steel Stainless Steel Retainer Cold Rolled Steel Strip (SPCC BQB402) Stainless Steel Plate (1Cr18) Polyamide (Nylon 66) and other Stainless Steel Plates, Polyamide and Other Dust Cover Cold Rolled Steel Strips (SPCC BQB402) Stainless Steel Plate (1Cr18) Stainless Steel Plate Sealing Ring Rubber (NBR, Viton) + skeleton (SPCC BQB402) PTFE (Teflon) NBR + SPCC BQB402, Teflon and other characteristics The use temperature is below 120 ℃ and below 300 ℃ The rated dynamic load is about 80% of the rated static load of the bearing steel About 80% of the friction torque of bearing steel, low and high use for general use. High-precision high-speed use with corrosion resistance and high temperature resistance

Bearing cage-HCHu0026 CTK standard cage is made of cold Made of rolled carbon steel, but in corrosive environments, non-parallel situations, or high-speed operation, stainless steel, nylon or phenolic resin cages can be used as required. Bearing Shields and Bearing Seals - HCH u0026 CTK Shields are standard in carbon steel, or AISI-300 stainless steel if necessary. HCHu0026CTK uses different kinds of seal ring materials to achieve the requirements for high temperature operation and compatibility with grease. NBR is the standard material we use, while fluorocarbon, silicone, teflon seals are often used for high temperature service. Bearing Lubricants - HCHu0026CTK bearings with shields and seals are filled with standard grease. Different lubricants can be used on request, standard lubricants for open type.