Product Name: Precision Dia 6-50mm Linear Motion Shaft Model NO.: 20mm Journal Surface Roughness: 0.63-0.16?m Appearance Shape: Round Shaft Shape: Real Axis Axis Shape: Straight Shaft Stiffness & Flexibility: Stiffness / Rigid Axle Load: Revolution Axis Trademark: IXIN Transport Package: Customized Specification: GCr15 Origin: China HS Code: 8483600090 Product Description Linear shaft, please check IXIN pdf catalog for details.1. Professional manufacturer2. DIN standard3. Strict quality control4. Stock availableLinear shaft material:GCr15/100Cr6/C45, stainless steelBearing Retainer: POMBearing Rubber Seal: NBRCase units: Aluminum-Anodizing/sandblast1 N=0.102 kgf Asia metric: G6 Europe Metric: H6Shaft 6mm 8mm 10mm 12mm 16mm 25mm 30mm 35mm 40mm 50mmProduct Name: Linear Rail, linear bearing, linear motion shafts, linear bearing block, linear precision shaft, slide bearing case, support housing.Linear shaft-SF^ SFH^ SIMetric Solid SF (SN) typePartDiameterToleranceLengthSurface hardenedMassNo.D(mm)g6( um )h6( um )(mm)(mm)(kg/m)SF66-160-8100-2000> 0.80.22SF88-190-9100-2000> 0.80.4SF1010-190-9100-2000> 1.00.62SF1212-230-11100-3000> 1.00.89SF1313-230-11100-3500> 1.01.04SF1616-230-11100-4000> 1.51.58SF2020-270-13100-6000> 1.52.47SF2525-270-13100-6000> 1.53.85SF3030-270-13100-6000> 2.05.55SF3535-340-16100-6000> 2.07.55SF4040-340-16100-6000> 2.59.87SF5050-340-16100-6000> 2.515.4Metric Hollow SFH (SNT) typePartDiameterToleranceSurfaceMassNo.d(mm)D(mm)g6( um )h6( um )(mm)(kg/m)SFH13613-230-11> 1.00.82SFH16816-230-11> 1.51.18SFH201020-270-13> 1.51.85SFH251525-270-13> 1.82.46SFH301630-340-16> 1.83.97SFH351935-340-16> 1.85.32SFH402040-340-16> 2.27.39SFH502650-340-16> 2.211.3Inch Solid Si (SNW) typePartDiameterToleranceSurface hardenedMassNo.D(mm)g6( um )h6( um )(mm)(kg/m)SI46.35-160-8> 0.60.25SI69.525-190-9> 1.00.56SI812.7-230-11> 1.01SI1015.875-0.0170-11> 1.51.55SI1219.05-270-13> 1.52.24SI1625.4-270-13> 1.54SI2031.75-270-13> 1.86.21SI2438.1-340-16> 2.28.95SI3250.8-340-16> 2.215.9