SKF軸承計算方法

1、SKF General Catalogue 5000Nov 12, 20031SKF綜合型錄綜合型錄5000版版SKF General Catalogue 5000軸承尺寸的選擇和軸承的壽命軸承尺寸的選擇和軸承的壽命Selection of bearing size and bearing lifenmSKF General Catalogue 5000Nov 12, 20032 SKF 與與ISO標準標準SKF and ISO standards執(zhí)行執(zhí)行ISO_281:1990/修訂版修訂版2:2000（以及新的（以及新的DIN ISO281修訂本修訂本1和和4- 2003）Implemen

2、tation of: ISO_281:1990/Amd.2:2000 (and new DIN ISO 281 Addendum 1 and 4- 2003)SKF General Catalogue 5000Nov 12, 20033潤滑劑對壽命的影響潤滑劑對壽命的影響Lubrication effects on life完全潤滑完全潤滑F(xiàn)ull film混合潤滑混合潤滑Mixed lubrication邊界潤滑邊界潤滑Boundary lubricationEP添加劑添加劑EP additives !k k 4k k 4k k 1SKF General Catalogue 5000Nov

3、12, 20034全新全新DIN ISO標準：標準：ISO_281:1990/修訂修訂2:2000New DIN ISO standards: ISO_281:1990/Amd.2:2000pSKF110SKF1nmPCaaLaaL SKF General Catalogue 5000Nov 12, 200354. 計算流程計算流程 Calculation flow壽命壽命Life !SKF General Catalogue 5000Nov 12, 20036新的技術特性圖表新的技術特性圖表 T07：潤滑油：潤滑油New - Technical - T07 : LubricationISO

4、VG -VI=95運行粘度運行粘度運行溫度運行溫度平均直徑平均直徑最最 低低 粘粘 度度 值值SKF General Catalogue 5000Nov 12, 20037擴展后的潔凈度系數(shù)選用表（擴展后的潔凈度系數(shù)選用表（ISO DIN 281:2002）Extended table for selection of h hc（ISO DIN 281:2002)污染程度極高清潔度雜質(zhì)尺寸在油膜厚度之內(nèi)，實驗室狀態(tài)。高清潔度潤滑油經(jīng)過極精細過濾，密封油脂潤滑軸承。一般清潔度潤滑油經(jīng)過精細過濾，具有非接觸密封的脂潤滑軸承輕度污染在潤滑劑中有輕度的污染物典型污染 軸承受到其他零件磨損微粒的污染 嚴

5、重污染軸承工作環(huán)境污染嚴重，并且軸承密封不充分。非常嚴重的污染系數(shù)h hch hcSKF General Catalogue 5000Nov 12, 20038改進后的徑向球軸承改進后的徑向球軸承aSKF 系數(shù)系數(shù)Improved aSKF for: radial ball bearingsFactor aSKF for radial ball bearingsh hc Pu/P0.0050.020.050.20.5250.010.11aSKF0.050.20.52520500.1110k k 4210.80.60.50.40.30.20.150.10.0050.020.050.20.520.

6、010.11Explorerc用于徑向球軸承的系數(shù) askfSKF General Catalogue 5000Nov 12, 20039改進后的徑向滾子軸改進后的徑向滾子軸承承aSKF系數(shù)系數(shù)Improved aSKF for: radial roller bearingsFactor aSKF for radial roller bearingsh hc Pu/P0.0050.020.050.20.5250.010.11aSKF0.050.20.52520500.1110k k 4210.80.60.50.40.30.20.150.10.0050.020.050.20.520.010.11

7、cExplorer用于徑向滾子軸承的系數(shù) askfSKF General Catalogue 5000Nov 12, 200310改進后的推力球軸承改進后的推力球軸承aSKF系數(shù)系數(shù)Improved aSKF for: thrust ball bearingsFactor aSKF for thrust ball bearingsh hc Pu/P0.0050.020.050.20.5250.010.11aSKF0.050.20.52520500.1110k k 4210.80.60.50.40.30.20.150.1c用于推力球軸承的系數(shù) askfSKF General Catalogue

8、5000Nov 12, 200311改進后的推力滾子軸改進后的推力滾子軸承承aSKF系數(shù)系數(shù)Improved aSKF for: thrust roller bearingsFactor aSKF for thrust roller bearingsh hc Pu/P0.0050.020.050.20.5250.010.11aSKF0.050.20.52520500.1110k k 4210.80.60.50.40.30.20.150.10.0050.020.050.20.520.010.11CExplorer用于推力滾子軸承的系數(shù) askfSKF General Catalogue 5000

9、Nov 12, 2003125. 最終對最終對kappa值和壽命的影響值和壽命的影響Resulting effect on kappa and life程度不同，取決于軸承的類型，規(guī)格和運行參數(shù)程度不同，取決于軸承的類型，規(guī)格和運行參數(shù)Vary, depending on bearing type, size and operational parameters最具意義的是低最具意義的是低kappa值的運行條件值的運行條件most significant increase is for the low kappa conditions kappa 值的效應增加：值的效應增加：1020% Typ

10、ical increase in kappa:1025 % 明顯延長壽命：明顯延長壽命：30150% Typical increase in life:30-150 %SKF General Catalogue 5000Nov 12, 200313全新全新aSKF曲線圖曲線圖New aSKF diagramsh hc Pu/P 0.0050.010.020.050.10.20.51250.050.10.20.5125102050k = 410.60.450.300.150.1壽命延長！壽命延長！Life will go up !aSKFSKF General Catalogue 5000Nov

11、 12, 200314表表6: 污染負荷比污染負荷比 h hc(Pu/P) 23 Table 6: Contamination-load rate h hc(Pu/P) 23軸承類型軸承類型 Bearing type比值比值 Rate h hc(Pu/P) 23 對對SKF標準軸承級標準軸承級 For SKF standard class SKF探索者級探索者級 SKF Explorer class 徑向軸承徑向軸承 Radial bearings球軸承 Ball bearings 滾子軸承 Roller bearings 推力軸承推力軸承 Thrust bearings球軸承 Ball be

12、arings 滾子軸承 Roller bearings0,050,320,160,790,040,23-0,56對一個具有良好表現(xiàn)的應用，可以使用固有的方法確定對一個具有良好表現(xiàn)的應用，可以使用固有的方法確定 h hc For existing good performing applications one can use :Implicit method for the selection of h hc aSKF a23 h hc = h hc(Pu/P) 23 / (Pu/P)h hc = h hc(Pu/P) 23 / (Pu/P)( () )P/P05, 0uc h hFactor

13、 aSKF for radial ball bearingsh hc Pu/P0.0050.020.050.20.5250.010.11aSKF0.050.20.52520500.1110k k 4210.80.60.50.40.30.20.150.10.0050.020.050.20.520.010.11ExplorercSKF General Catalogue 5000Nov 12, 200315對用戶的價值對用戶的價值Value for customers修正的修正的SKF額定壽命，改善了軸承壽命預測的精確性額定壽命，改善了軸承壽命預測的精確性The SKF rating life is revised to improve accuracy in predictions of bearing life改善后的精確結果在用戶的運行中提高了可靠性改善后的精確結果在用戶的運行中提高了可靠性Improved accuracy results in improved reliability in customer operations提高的可靠性對用戶而言是更低的成本和更好的效益提高的可靠性對用戶而言是更低的成本和更好的效益Improved reliability for the custome