BOSCH REXROTH A8VO VARIABLE DISPLACEMENT PUMPS SUPPLIER
BOSCH REXROTH A8VO VARIABLE DISPLACEMENT PUMPS SUPPLIER
Bosch Rexroth A8vo Variable Displacement Pumps   Bosch Rexroth A10vo Piston Pumps   Bosch Rexroth A7vo Variable Displacement Pumps  
English
English
  • Home
  • Stock Categories
    • Bosch Rexroth A8vo Variable Displacement Pumps
    • Bosch Rexroth A10vo Piston Pumps
    • Bosch Rexroth A7vo Variable Displacement Pumps
    • Bosch Rexroth A4v Variable Pumps
    • Kawasaki K3vl Axial Piston Pump
    • Bosch Rexroth A11vlo Axial Piston Variable Pump
    • Bosch Rexroth A2v Variable Displacement Pumps
    • Kawasaki K3vg Variable Displacement Axial Piston Pump
    • Bosch Rexroth A10vso Variable Displacement Pumps
    • Bosch Rexroth A4vg Variable Displacement Pumps
    • Bosch Rexroth A10vg Axial Piston Variable Pump
    • Kawasaki K5v Hydraulic Pump
    • Bosch Rexroth A15vso Axial Piston Pump
    • Bosch Rexroth A2fo Fixed Displacement Pumps
    • Bosch Rexroth A11vg Hydraulic Pumps
    • Bosch Rexroth A11vo Axial Piston Pump
    • Kawasaki K3v Hydraulic Pump
    • Bosch Rexroth A4vso Variable Displacement Pumps
    • Bosch Rexroth A4vtg Axial Piston Variable Pump
    • Bosch Rexroth A4vsg Axial Piston Variable Pump
    • Bosch Rexroth A10vno Axial Piston Pumps
    • Linde Hpr Hydraulic Pump
  • Technical Articles
  • Bosch Rexroth A8vo Variable Displacement Pumps
  • Bosch Rexroth A10vo Piston Pumps
  • Bosch Rexroth A7vo Variable Displacement Pumps
✖

Home

Stock Categories

Technical Articles

Bosch Rexroth A8vo Variable Displacement Pumps

Bosch Rexroth A10vo Piston Pumps

Bosch Rexroth A7vo Variable Displacement Pumps

Home>Products>Bosch Rexroth A10vo Piston Pumps>AL A10V O100 DRS /53L-VUC12N00-SO646 BOSCH REXROTH A10VO PISTON PUMPS

  • AL A10V O100 DRS /53L-VUC12N00-SO646 BOSCH REXROTH A10VO PISTON PUMPS
  • AL A10V O100 DRS /53L-VUC12N00-SO646 BOSCH REXROTH A10VO PISTON PUMPS

BOSCH REXROTH AL A10V O100 DRS /53L-VUC12N00-SO646 MODELS

Need a CAD or 3D Model?

What is AL A10V O100 DRS /53L-VUC12N00-SO646 bearing cross reference？
Contact NowWhatsAppBe Our Agent

AL A10V O100 DRS /53L-VUC12N00-SO646 BOSCH REXROTH A10VO PISTON PUMPS

category

Bosch Rexroth A10vo Piston Pumps

BOSCH REXROTH AL A10V O100 DRS /53L-VUC12N00-SO646 Bearing SPECIFICATIONS

  • AL A10V O100 DRS /53L-VUC12N00-SO646 BOSCH REXROTH A10VO PISTON PUMPS Manufacturers , Online 63.00 mm Da - Cup Frontface Backing Diameter Wholesale Suppliers‎ 46.99 mm db - Cone Backface Backing Diameter ! 2080 lbf Ca90 - Dynamic Thrust Rating (90 million revolutions)6

  • BOSCH REXROTH

  • AL A10V O100 DRS /53L-VUC12N00-SO646

  • 63.00 mm
  • 46.99 mm
  • 2080 lbf
  • 18
  • Stamped Steel
  • 40.89 mm
  • 3180 lbf
  • 1.8 mm
BOSCH REXROTH A8VO VARIABLE DISPLACEMENT PUMPS SUPPLIER

BOSCH REXROTH A8VO VARIABLE DISPLACEMENT PUMPS SUPPLIERChina

  • BOSCH REXROTH A8VO VARIABLE DISPLACEMENT PUMPS SUPPLIER2020-07-10 09:46:19
    Welcome to my shop! Glad to serve you! Please send your question!
Price Inspection Certificate Product Specifications Company Profile

Specifications for Bosch Rexroth A10vo Piston Pumps

  • 63.00 mm
  • 46.99 mm
  • 2080 lbf
  • 18
  • Stamped Steel
  • 40.89 mm
  • 3180 lbf
  • 1.8 mm
  • 1.53
  • 0.30 Kg
  • 1.57
  • 0.0668
  • 13.3
  • 58.93 mm
  • 34.925 mm
  • 14272
  • 3.560 mm
  • 14000
  • 19.583 mm
  • 13900 lbf

BOSCH REXROTH AL A10V O100 DRS /53L-VUC12N00-SO646 The details of Bosch Rexroth A10vo Piston Pumps

 

A A10VO45 DFR BOSCH REXROTH A10VO PISTON PUMPSDimension H:4.6 in; Dimension R:21.3 in; Bolt Size:4 x M30; Note:This product line wa; Dimension T:24.0 in; Cr - Dynamic Load Rating:167258 lbf; Dimension N:18.250 in; Dimension V:0.1 in; Maximum Speed:820 rpm; Ca - Axial Load Rating:12994 lbf; Series Type:Light Series; Dimension L:8.3 in; Support Type:Round Flange; Shaft Size:250 mm; Bearing Number:LSM250BR; Bearing UPC:013992029348; Seal Type:Kevlar Packing Seal;
AP A10V O100EK2DS/32L-VUC11N00 -S2324 BOSCH REXROTH A10VO PISTON PUMPSAnti-Rotation Pin:Yes; Housing Type:2 Bolt Light Duty Fl; Flinger Material:Steel; Bearing Locking Device:Concentric Clamp Col; End Cap Groove:No; Bearing Duty:Normal Duty; Base to Center Height:Not Applicable; Retainer Type:Std Retainer; Ball Bearing Housing Series:204 Series; Housing Material:Zinc; Bearing Outer Ring Material:Steel; Seal Type:Single Lip; Ball Material:Steel; Expansion Type:Non-Expansion;
AP A10V O110ED 74/31L-VUC12KC3P -S4073 BOSCH REXROTH A10VO PISTON PUMPSCage Type:Stamped Steel; C90 - Dynamic Radial Rating (90 million revolutions)4:7900 lbf; Bearing Weight:3.3 lb; Series:455; Cup Part Number:453XB; a - Effective Center Location3:-0.28 in; Da - Cup Frontface Backing Diameter:3.96 in; D1 - Flange Outer Diameter:4.4960 in; Cg - Geometry Factor10:0.0946; C0 - Static Radial Rating:37200 lbf; R - Cone Backface To Clear Radius1:0.14 in; da - Cone Frontface Backing Diameter:1.95 in;
AL A10VO60 DFR1/52R-VSC61N00-SO547 BOSCH REXROTH A10VO PISTON PUMPSDb - Cup Backface Backing Diameter:11.57 in; Y - ISO Factor3:1.66; e - ISO Factor2:0.36; Design Units:Imperial; D:12.25 in; Cg - Geometry Factor:0.133; Cup Part Number:LM446310W; r - Cup Backface To Clear Radius1:0.130 in; Da - Cup Frontface Backing Diameter:11.97 in; Series:LM446300; C - Cup Width:1.3125 in;
AL A10VO71 DFR1/31R-VSC12N00-SO581 BOSCH REXROTH A10VO PISTON PUMPSDimension H2:44.1 in; Bearing - Housing - Seal:HSM380BRHHTPS; Support Type:Eight-Bolt Plummer B; Shaft Size:380 mm; Dimension M:15.5 in; Dimension K:11.5 in; Housing Width:15.7 in; Cr - Dynamic Load Rating:718265 lbf; Bearing Number:HSM380BR; Ca - Axial Load Rating:56382 lbf; Note:This product line wa; Dimension L:50.0 in; Seal Type:High Temperature Pac; Dimension J1:40.8 in; Bearing UPC:013992056788;
AL A10VO45 DFR1/52L-PSC11N00-SO547 BOSCH REXROTH A10VO PISTON PUMPSWeight:84.20 Kg; C:70 mm; Appropriate Hydraulic Nut:HMV84; d1:400.00 mm; L:304.00 mm; D3:540 mm; Lockwasher and Lockplates:MS 3184; C11:90.00 mm; Thread G:Tr420x5; Locknut:HM3184;
A10VO60DFR1-52L-VUC11N BOSCH REXROTH A10VO PISTON PUMPSBall Material:Steel; Anti-Rotation Pin:Yes; Max Bearing Speed:5500 rpm; Expansion Type:Non-Expansion; Base to Center Height:Not Applicable; d:1.4375 in; Flinger Material:None; Seal Type:Single Lip; Bearing Insert Material:Steel; Retainer Material:Nylon; Bearing Outer Ring Material:Steel; Bearing Locking Device:Setscrew; Ball Bearing Housing Series:207 Series; Shaft Attachment (2):Set Screw; Housing Material:Zinc;
A10VO45EK1DS-53L-VWC62N00P BOSCH REXROTH A10VO PISTON PUMPSB:38.500 mm; e - ISO Factor8:0.42; Bearing Weight:2.50 Kg; Da - Cup Frontface Backing Diameter:142.00 mm; B - Cone Width:36 mm; C - Cup Width:30.000 mm; Cg - Geometry Factor:0.0888; K - Factor7:1.39; d:85 mm; C1 - Dynamic Radial Rating (1 million revolutions)5:291000 N; a - Effective Center Location3:-4.6 mm; r - Cup Backface To Clear Radius2:2.03 mm; Cup Part Number:JK151543-SA; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:54200 N;
AL A10VO28ED 72/52R-VSC12N00P-S207 BOSCH REXROTH A10VO PISTON PUMPSDynamic Load Rating:319000 lbf; E - Shoulder Diameter - Housing:25.17 in; D - Bearing O.D.:32.0000 in; B:4.0000 in; T1 - Ring Thickness:1.094 in; Weight:398.0 lb; R - Fillet Radius Shaft (Max):0.25 in; H - Shoulder Diameter - Shaft:30.65 in; D1 - Small Diameter O.D.:32.000 in; d - Bore Diameter:24.0000 in; Static Load Rating:5890000 lbf; d1 - Large Bore I.D.:24.000 in; Bearing Type:Thrust Tapered Rolle;
AL A10VO45 DFR1/31R-VUC62N00-SO413 BOSCH REXROTH A10VO PISTON PUMPSAb - Cage-Cone Frontface Clearance:0.09 in; D:3.9370 in; K - Factor7:1.37; B - Cone Width:1.0000 in; db - Cone Backface Backing Diameter:2.87 in; Aa - Cage-Cone Backface Clearance:0.05 in; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:4500 lbf; Cup Part Number:28921D; Bearing Weight:3.57 lb; C - Double Cup Width:1.7500 in; d:2.3750 in; T - Bearing Width across Cones:2.1874 in; G2 - Heat Generation Factor (Rib-Roller End):24.5;
A A10VO45 DFR/31L-PSC61N BOSCH REXROTH A10VO PISTON PUMPSDimension C:2.81 in; Dimension S:2.87 in; Dimension D Min:5.93 in; Dimension J (Bolt Size):0.625 in; Dimension G:2.440 in; Y1 - Geometry Factor:2.84; Dimension R:0.24 in; Grease Lubrication - B/C/O Seal:1800 rpm; Pre Install Clearance Min:0.0016 in; Shaft Size  :50 mm; Oil Lubrication - M/N Seal:2400 rpm; Weight:13 lb; Shaft Size Type:Metric; e - Geometry Factor:0.24; Dimension L:3.11 in;
AL A10VO74 DFR1/31R-PSC61N BOSCH REXROTH A10VO PISTON PUMPSC0 - Static Radial Rating:209000 lbf; Cone Part Number:95491; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:23200 lbf; Db - Cup Backface Backing Diameter:207.01 mm; da - Cone Frontface Backing Diameter:139.95 mm; K - Factor7:1.58; d:124.943 mm; G2 - Heat Generation Factor (Rib-Roller End):59.4; Bearing Weight:11.3 Kg; C - Cup Width:49.213 mm; B:63.5 mm; r - Cup Backface To Clear Radius2:3.30 mm;
A10VO45DFR1-31R-PRC12N BOSCH REXROTH A10VO PISTON PUMPSWeight:14.70 Kg; L1:161.00 mm; Lockwasher and Lockplates:MB 44; d1:7 15/16 in; Locknut:HM44T; C:35 mm; G:Tr220x4; D3:280 mm; Appropriate Hydraulic Nut:HMV44;
AL A10VO60 DFR1/52R-VSR46N00 ESO834 BOSCH REXROTH A10VO PISTON PUMPSCone Part Number:M348448WS; G1 - Heat Generation Factor (Roller-Raceway):1450.8; Aa - Cage-Cone Backface Clearance:3 mm; B:63.503 mm; Ab - Cage-Cone Frontface Clearance:4.8 mm; D:346.075 mm; Y - ISO Factor9:1.75; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:29100 lbf; a - Effective Center Location3:-1.3 mm; Series:M348400; Bearing Weight:17.6 Kg; da - Cone Frontface Backing Diameter:262.89 mm;

 

 

No.BrandSCAebTts
A10VO140DFR1-31L-VSD12NBOSCH REXROTH - - - - - - - -
A10VO140DFR-31L-PSC62NBOSCH REXROTH - - - - - - - -
AL A10V O100 DRG /31L-PSC62K68-SO277BOSCH REXROTH - - - - - - - -
A10VO63LA8DS-53R-VSC12NBOSCH REXROTH - - - - - - - -
AL A10VO60 DFR1/52R-VSR46N00-S1607BOSCH REXROTH - - - - - - - -
AL A10VWO 28 DFR1/52W-VSC64N00-S35BOSCH REXROTH - - - - - - - -
A10VO45DFR1-52L-VSC11NBOSCH REXROTH - - - 9.0 mm40 mm - 15 mm -
AL A10VO28 DFR1/31L-VSC11NBOSCH REXROTH - - - - - - - -
AP A10VO74 DFLR/31R-VSC12N00 -SO909BOSCH REXROTH - - - - - 15 mm - 32 mm
AL A10VO28 DRG/52L-VSC12N00-SO702BOSCH REXROTH - - - - - - - -
A10VO71DFLR-31R-PSC12KC3-SO681BOSCH REXROTH - - - - - - - -
AL A10VO71 DFR1/31R-PSC62K68-SO667BOSCH REXROTH - - - - - - - -
AL A10VO28LA7DS/53R-VSC12N00-S2287BOSCH REXROTH - - - - - - - -
AL A10VO28 DRG/31L-PSC12NBOSCH REXROTH - - - - - - - -
A10VO45DFLR-31R-PSC12K01-SO958BOSCH REXROTH - 70 mm - - - - - -
AL A10V O85EK1DS/53R-VUD62G80P -S2752BOSCH REXROTH - - - - - - - -
A10VO74DFR1-31R-VSC91NBOSCH REXROTH - 12.5 mm - - - - - -
AL A10VO85 DFR1/52R-PUC12N00 ES1262BOSCH REXROTH - - - - - - - -
R LA10VO45 DFR/52L-VCC12N00 EBOSCH REXROTH - - - - - - - -
A A10V O45EK2DF/53R-VUC12N00PBOSCH REXROTH - - - - - - - -
A10VO45DFR1-31R-PRC12NBOSCH REXROTH - 35 mm - - - - - -
A10VO74DFLR-31R-VSC46NBOSCH REXROTH0.938 in - - - - - - -
AL A10VO45ED 71/52R-VSC11N00P-S211BOSCH REXROTH - 29.5 mm - - - - - -
AL A10VO28ED 72/52R-VSC11N00P-SO481BOSCH REXROTH - - - - - - - -
LA10VO28ED72/52R+LA10VO28ED72/52RBOSCH REXROTH - - - - - - - -
A A10VO28 DRG/31L-VSC61NBOSCH REXROTH - - - - - - - -

 

AL A10V O100 DRS /53L-VUC12N00-SO646 BOSCH REXROTH A10VO PISTON PUMPS Video

 

Bosch Rexroth A10VO Axial Piston Pump – Series 52/53

Bosch Rexroth A10VO Series 52/5s axial piston pumps for high sdeeds: nominal pressure 250 bar, maximum 315 bar in sizes 10 - 100 cc/rev. We ship worldwide.

Axial piston variable pump | Bosch Rexroth AG

Axial piston variable pump. A10VO series 5x. For machines with medium pressure requirements; Size 10 … 100; Nominal pressure 250 bar; Maximum pressure 315 ...

Axial piston variable pump A10VO Series 52 ... - Bosch Rexroth

Features. ▷ Variable pump with axial piston rotary group in swashplate design for hydrostatic drives in open circuit. ▷ Flow is proportional to drive ...

A10VO series 31 - Axial piston variable pump - Bosch Rexroth

All-purpose medium pressure pump; Size 18 … 100; Nominal pressure 4100 psi; Maximum pressure 5100 psi; Open circuit. Additional information.

Axial piston variable pump | Bosch Rexroth AG

Axial piston variable pump. A10VOH series 60. Size 145; Nominal pressure 320 bar; Maximum pressure 420 bar; Open circuit ...

Axial piston variable pump | Bosch Rexroth AG

Axial piston variable pump. A10VO series 31. All-purpose medium pressure pump; Size 18 … 100; Nominal pressure 280 bar; Maximum pressure 350 bar ...

Axial piston variable pump | Bosch Rexroth AG

A10VO series 32 · Optimized medium pressure pump for high power machines · Size 45 … 180 · Nominal pressure 280 bar · Maximum pressure 350 bar · Open circuit.

Axial piston variable pump - A10VO/5x - Bosch Rexroth

Axial piston variable pump. A10VO series 5x. For machines with medium pressure requirements; Size 10 … 100; Nominal pressure 3600 psi; Maximum pressure 4550 ...

BOSCH REXROTH AL A10V O100 DRS /53L-VUC12N00-SO646 INTERCHANGE

Bosch Rexroth A10vo Piston Pumps Part series AL A10V O100 DRS /53L-VUC12N00-SO646 is a potential replacement for these common bearing part numbers:

  • AL A10V O100 DRS /53L-VUC12N00-SO646

  • AL A10V O100 DRS /53L-VUC12N00-SO646

  • AL A10V O100 DRS /53L-VUC12N00-SO646

  • AL A10V O100 DRS /53L-VUC12N00-SO646

  • AL A10V O100 DRS /53L-VUC12N00-SO646

  • AL A10V O100 DRS /53L-VUC12N00-SO646

  • AL A10V O100 DRS /53L-VUC12N00-SO646

  • AL A10V O100 DRS /53L-VUC12N00-SO646

Contact Us

BOSCH REXROTH A8VO VARIABLE DISPLACEMENT PUMPS SUPPLIER
Address
Phone(Working Time)
Fax
  • BOSCH REXROTH A8VO VARIABLE DISPLACEMENT PUMPS SUPPLIER
    • Quick question Quick question I'm very interested in your products; could you send me some detail reference information? Please send me detail product specification, thank you! May I be an agency of your products,and what's yourterms? We intend to purchase this product, would you please send me the quotation and minimum order quantity?
     This feature is Quick question function, select the corresponding question types, automatically enter the corresponding problem, remove your trouble of typing
Send Now

BOSCH REXROTH AL A10V O100 DRS /53L-VUC12N00-SO646 Technical Articles

How do you calculate piston pump displacement?
Piston Pump-flow Calculation - Student Feb 8, 2007 — What this implies is that the piston displacement is essentially the volume of the fluid pumped. If we know the RATE at which this displacement  Modeling of Axial Piston Pump Input Torque and Output...
How is displacement determined by piston pumps?
What is the difference between fixed and variable pumps?May 9, 2019 — An axial piston pump's maximum displacement is determined by the quantity and bore area of the pistons multiplied by the stroke length. Variable displacement pump - WikipediaPiston...
How is the displacement change in an axial piston pump?
Piston Pump - an overview | ScienceDirect TopicsPump displacement is controlled by altering the angle of the swash plate; the larger the angle, the greater the displacement. With the swash plate vertical  What is the difference between fixed and...

Bosch Rexroth A10vo Piston Pumps CATEGORIES

  • Bosch Rexroth A8vo Variable Displacement Pumps
  • Bosch Rexroth A10vo Piston Pumps
  • Bosch Rexroth A7vo Variable Displacement Pumps
  • Bosch Rexroth A4v Variable Pumps
  • Kawasaki K3vl Axial Piston Pump
  • Bosch Rexroth A11vlo Axial Piston Variable Pump
  • Bosch Rexroth A2v Variable Displacement Pumps
  • Kawasaki K3vg Variable Displacement Axial Piston Pump
  • Bosch Rexroth A10vso Variable Displacement Pumps
  • Bosch Rexroth A4vg Variable Displacement Pumps
  • Bosch Rexroth A10vg Axial Piston Variable Pump
  • Kawasaki K5v Hydraulic Pump
  • Bosch Rexroth A15vso Axial Piston Pump
  • Bosch Rexroth A2fo Fixed Displacement Pumps
  • Bosch Rexroth A11vg Hydraulic Pumps
  • Bosch Rexroth A11vo Axial Piston Pump
  • Kawasaki K3v Hydraulic Pump
  • Bosch Rexroth A4vso Variable Displacement Pumps
  • Bosch Rexroth A4vtg Axial Piston Variable Pump
  • Bosch Rexroth A4vsg Axial Piston Variable Pump
  • Bosch Rexroth A10vno Axial Piston Pumps
  • Linde Hpr Hydraulic Pump
More

Customers Who Viewed BOSCH REXROTH AL A10V O100 DRS /53L-VUC12N00-SO646 Bearing Also Viewed

  • AL A10VO28 DFR1/52R-HTC40N00-S202 BOSCH REXROTH A10VO PISTON PUMPS
  • AL A10V O100 DRS /53L-VUC12N00-SO646 BOSCH REXROTH A10VO PISTON PUMPS
  • AL A10VO71 DFR1/31R-PSC62K68-SO667 BOSCH REXROTH A10VO PISTON PUMPS
  • A10VO71 DFR/31R-PSC62K02 BOSCH REXROTH A10VO PISTON PUMPS
  • A10VO45DFR1-52L-PSC12N00-SO702 BOSCH REXROTH A10VO PISTON PUMPS
 
  • About Us|
  • Contact Us|
  • Site Map
  • Sitemaps

BOSCH REXROTH A8VO VARIABLE DISPLACEMENT PUMPS SUPPLIER. Copyright © 2017 - 2025 All Rights Reserved.

  • Home
  • Stock Categories
    • Bosch Rexroth A8vo Variable Displacement Pumps
    • Bosch Rexroth A10vo Piston Pumps
    • Bosch Rexroth A7vo Variable Displacement Pumps
    • Bosch Rexroth A4v Variable Pumps
    • Kawasaki K3vl Axial Piston Pump
    • Bosch Rexroth A11vlo Axial Piston Variable Pump
    • Bosch Rexroth A2v Variable Displacement Pumps
    • Kawasaki K3vg Variable Displacement Axial Piston Pump
    • Bosch Rexroth A10vso Variable Displacement Pumps
    • Bosch Rexroth A4vg Variable Displacement Pumps
    • Bosch Rexroth A10vg Axial Piston Variable Pump
    • Kawasaki K5v Hydraulic Pump
    • Bosch Rexroth A15vso Axial Piston Pump
    • Bosch Rexroth A2fo Fixed Displacement Pumps
    • Bosch Rexroth A11vg Hydraulic Pumps
    • Bosch Rexroth A11vo Axial Piston Pump
    • Kawasaki K3v Hydraulic Pump
    • Bosch Rexroth A4vso Variable Displacement Pumps
    • Bosch Rexroth A4vtg Axial Piston Variable Pump
    • Bosch Rexroth A4vsg Axial Piston Variable Pump
    • Bosch Rexroth A10vno Axial Piston Pumps
    • Linde Hpr Hydraulic Pump
  • Technical Articles
  • Bosch Rexroth A8vo Variable Displacement Pumps
  • Bosch Rexroth A10vo Piston Pumps
  • Bosch Rexroth A7vo Variable Displacement Pumps
✖

Home

Stock Categories

Technical Articles

Bosch Rexroth A8vo Variable Displacement Pumps

Bosch Rexroth A10vo Piston Pumps

Bosch Rexroth A7vo Variable Displacement Pumps

Contact Us