1.Single-row CRB 2.Size:150-1200 mm 3.Material:GCr15SiMn,G20Cr2Ni4 4.ISO9001:2000 standard bearing nameNeedle Roller Bearingbrand classificationNeedle bearing Seriesany types, such as 29241/5,39241/5,29241/6,39241/6,19241/6,29241/7,39241/7 ect Ring MaterialChrome Steel ,Carbon steel,Stainless steel Tolerance gradeGB/T307.1-205 ID Size 10mm~280mm Quality standardISO 9001:2000 standard Precision P0 ...