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60 mm x 95 mm x 18 mm Number of balls z SKF S7012 CDTP/P4B Back-to-back duplex arrangement BearingsSee More>
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Static Load Rating (kN): RHP 7309ctsulp4-rhp Heat resistant SHX steel Precision BearingsSee More>
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30 mm x 47 mm x 9 mm d1 SKF 71906 CDTP/HCP4B ISO class 2 ABMA ABEC9 Precision BearingsSee More>
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35 mm x 55 mm x 10 mm D2 SNR 71907.CV.U.J74 usual arrangements Precision BearingsSee More>
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Oil Limiting Speed (r/min): NSK 7014ctrsump3-nsk DB/DF/DT Precision BearingsSee More>
Featured Products
Our Manufacturer with main products: Back-to-back duplex arrangement Bearings, Heat resistant SHX steel Precision Bearings, ISO class 2 ABMA ABEC9 Precision Bearings
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20 mm x 37 mm x 9 mm D SKF S71904 ACDTP/HCP4B Double-Row Angular Contact Ball Bearings
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90 mm x 140 mm x 24 mm Basic dynamic load rating C SKF 7018 CDTP/HCP4B Double-Row Angular Contact Ball Bearings
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70 mm x 110 mm x 20 mm B SKF S7014 CE/HCP4BVG275 Double-Row Angular Contact Ball Bearings
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40 mm x 62 mm x 12 mm Attainable speed for grease lubrication SKF 71908 ACDTP/HCP4B Double-Row Angular Contact Ball Bearings
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85 mm x 130 mm x 22 mm a SKF 7017 CD/P4AL Double-Row Angular Contact Ball Bearings
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40 mm x 68 mm x 15 mm Calculation factor f2A SKF S7008 ACE/HCP4BVG275 Double-Row Angular Contact Ball Bearings
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60 mm x 95 mm x 18 mm Calculation factor f1 SKF S7012 ACDTP/P4B Double-Row Angular Contact Ball Bearings
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40 mm x 68 mm x 15 mm Calculation factor f2B SKF 7008 ACE/P4AL1 Double-Row Angular Contact Ball Bearings
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60 mm x 95 mm x 18 mm Calculation factor fHC SKF S7012 CE/HCP4BVG275 Double-Row Angular Contact Ball Bearings
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35 mm x 62 mm x 14 mm Db max. SKF S7007 CDTP/HCP4B Double-Row Angular Contact Ball Bearings
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12 mm x 28 mm x 8 mm Calculation factor f2B SKF 7001 ACD/HCP4AH Double-Row Angular Contact Ball Bearings
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60 mm x 95 mm x 18 mm Calculation factor e SKF 7012 ACE/HCP4BVG275 Double-Row Angular Contact Ball Bearings
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50 mm x 72 mm x 12 mm Basic dynamic load rating C SKF S71910 CDTP/HCP4B Double-Row Angular Contact Ball Bearings
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70 mm x 110 mm x 20 mm Calculation factor (back-to-back, face-to-face) Y1 SKF 7014 ACDTP/HCP4B Double-Row Angular Contact Ball Bearings
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40 mm x 68 mm x 15 mm Number of balls z SKF 7008 ACE/P4BVG275 Double-Row Angular Contact Ball Bearings
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20 mm x 42 mm x 12 mm Basic static load rating C0 SKF 7004 ACE/P4BVG275 Double-Row Angular Contact Ball Bearings
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45 mm x 75 mm x 16 mm Da max. SKF 7009 ACD/HCP4AH Double-Row Angular Contact Ball Bearings
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35 mm x 62 mm x 14 mm Attainable speed for grease lubrication SKF 7007 ACDTP/HCP4B Double-Row Angular Contact Ball Bearings
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30 mm x 55 mm x 13 mm C1 SKF 7006 ACE/HCP4AL1 Double-Row Angular Contact Ball Bearings
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80 mm x 125 mm x 22 mm ra max. SKF 7016 ACD/P4AL Double-Row Angular Contact Ball Bearings
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75 mm x 115 mm x 20 mm Preload class B GB SKF 7015 CD/HCP4AH1 Double-Row Angular Contact Ball Bearings
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70 mm x 100 mm x 16 mm C3 SKF 71914 ACD/HCP4AL Double-Row Angular Contact Ball Bearings
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25 mm x 42 mm x 9 mm Da max. SKF S71905 ACDTP/P4B Double-Row Angular Contact Ball Bearings
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40 mm x 68 mm x 15 mm Calculation factor f1 SKF 7008 CE/HCP4BVG275 Double-Row Angular Contact Ball Bearings
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50 mm x 72 mm x 12 mm Da max. SKF 71910 CDTP/HCP4B Double-Row Angular Contact Ball Bearings
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60 mm x 95 mm x 18 mm Static axial stiffness, preload class B SKF 7012 CE/P4BVG275 Double-Row Angular Contact Ball Bearings
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25 mm x 42 mm x 9 mm Basic dynamic load rating C SKF 71905 ACDTP/P4B Double-Row Angular Contact Ball Bearings
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45 mm x 75 mm x 16 mm d1 SKF S7009 CE/P4BVG275 Double-Row Angular Contact Ball Bearings
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65 mm x 90 mm x 13 mm Preload class C GC SKF 71913 ACD/P4AL Double-Row Angular Contact Ball Bearings
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65 mm x 100 mm x 18 mm Preload class C GC SKF 7013 CE/P4BVG275 Double-Row Angular Contact Ball Bearings
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65 mm x 90 mm x 13 mm Calculation factor fHC SKF 71913 ACB/HCP4AL Double-Row Angular Contact Ball Bearings
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45 mm x 68 mm x 12 mm Attainable speed for grease lubrication SKF 71909 CDTP/P4B Double-Row Angular Contact Ball Bearings
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60 mm x 95 mm x 18 mm Preload class A GA SKF 7012 ACDTP/HCP4B Double-Row Angular Contact Ball Bearings
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40 mm x 68 mm x 15 mm Mass bearing SKF S7008 CE/P4BVG275 Double-Row Angular Contact Ball Bearings
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40 mm x 68 mm x 15 mm Calculation factor f2B SKF S7008 CDTP/P4B Double-Row Angular Contact Ball Bearings
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100 mm x 150 mm x 24 mm d1 SKF S7020 ACE/HCP4BVG275 Double-Row Angular Contact Ball Bearings
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90 mm x 140 mm x 24 mm Da max. SKF 7018 CE/P4BVG275 Double-Row Angular Contact Ball Bearings
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110 mm x 170 mm x 28 mm Basic static load rating C0 SKF 7022 CE/P4AL1 Double-Row Angular Contact Ball Bearings
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65 mm x 100 mm x 18 mm Static axial stiffness, preload class C SKF S7013 CE/P4BVG275 Double-Row Angular Contact Ball Bearings
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100 mm x 140 mm x 20 mm d2 SKF 71920 CD/P4AL Double-Row Angular Contact Ball Bearings
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FAQS
QWhat is super-precision bearings ?
AMachine tools and other precision applications require superior bearing performance. Extended speed capability, a high degree of running accuracy, high system rigidity, low heat generation, as well as low noise and vibration levels are just some of the challenges. Rolling bearings for general industrial applications can only partly fulfill these requirements. Therefore, SKF manufactures a comprehensive assortment of super-precision bearings. super-precision bearings help original equipment manufacturers and end users to further optimize performance parameters of their equipment and applications. The benefits differ depending on the bearing series and applications but include high speed and load carrying ability, long bearing service life, long maintenance intervals and low energy consumption.
QWhat's the application of super-precision bearings ?
ATypical applications for super-precision bearings are: metal cutting and woodworking machinery spindles other machine spindles (e.g. balancing machines) high speed rolling mills printing machinery precision ball screws live centres high speed turbochargers vacuum pumps racing cars boat gyrostabilizers machine components for the semiconductor industry
QWhat's the Super-precision Bearing Lubrication
AImproved reliability, profitability and reduced environmental impact Super-precision Bearing Lubrication Unit To meet the ever-growing performance requirements of high-speed precision applications, SKF has developed the new Super-precision Bearing Lubrication Unit for use with oil-air lubrication in high-speed applications. This system can not only simplify new spindle designs but can also improve the performance of existing designs. This highly effective solution improves lubricant flow and reduces frictional heating in the bearings, enabling them to operate at speeds up to approximately 2.5-3 million n dm. By reducing the operating temperatures and improving oil-air flow, oil consumption and noise levels can also be reduced.
QWhat's the advantage of oil-air lubrication ?
AThe rotational speed at which a bearing reaches its operating temperature limit depends primarily on the heat generated in the bearing (frictional heat) and the amount of heat that can be transferred away from the bearing. One way to reduce frictional heat, particularly in bearings, is to be sure that the correct quantity of the appropriate lubricant reaches all necessary components. Many high speed applications can be lubricated with grease. However, as speeds and the resulting frictional heat increase, grease is typically replaced with an oil lubrication system. Very high-speed applications generally require a precise lubricant delivery system: the precise amount of oil required to adequately lubricate the bearing is continuously delivered by the oil-air lubrication system, thus minimizing friction and operating temperature. Oil-air lubrication system provides the following advantages: increases the bearing attainable speed reduces friction torque and energy consumption reduces environmental impact reduces lubricant consumption maximizes the effectiveness of the lubricant positive pressure within the housing virtually eliminates the ingress of contaminants.