LINDE HPR HYDRAULIC PUMP SUPPLIER
LINDE HPR HYDRAULIC PUMP SUPPLIER
Linde HPR Hydraulic Pump   Kawasaki K5V Hydraulic Pump   Kawasaki K3VL Axial Piston Pump  
English
English
  • Home
  • Stock Categories
    • Linde HPR Hydraulic Pump
    • Kawasaki K5V Hydraulic Pump
    • Kawasaki K3VL Axial Piston Pump
    • Kawasaki K3VG Variable Displacement Axial Piston Pump
    • Kawasaki K3V Hydraulic Pump
    • Bosch Rexroth A8VO Variable Displacement Pumps
    • Bosch Rexroth A4VSG Axial Piston Variable Pump
    • Bosch Rexroth A7VO Variable Displacement Pumps
    • Bosch Rexroth A4VTG Axial Piston Variable Pump
    • Bosch Rexroth A4VSO Variable Displacement Pumps
    • Bosch Rexroth A4VG Variable Displacement Pumps
    • Bosch Rexroth A4V Variable Pumps
    • Bosch Rexroth A10VG Axial Piston Variable Pump
    • Bosch Rexroth A10VO Piston Pumps
    • Bosch Rexroth A10VSO Variable Displacement Pumps
    • Bosch Rexroth A11VG Hydraulic Pumps
    • Bosch Rexroth A11VLO Axial Piston Variable Pump
    • Bosch Rexroth A11VO Axial Piston Pump
    • Bosch Rexroth A15VSO Axial Piston Pump
    • Bosch Rexroth A2FO Fixed Displacement Pumps
    • Bosch Rexroth A10VNO Axial Piston Pumps
    • Bosch Rexroth A2V Variable Displacement Pumps
  • Technical Articles
  • Linde HPR Hydraulic Pump
  • Kawasaki K5V Hydraulic Pump
  • Kawasaki K3VL Axial Piston Pump
✖

Home

Stock Categories

Technical Articles

Linde HPR Hydraulic Pump

Kawasaki K5V Hydraulic Pump

Kawasaki K3VL Axial Piston Pump

Home>Products>Bosch Rexroth A4VTG Axial Piston Variable Pump>A4VTG90EP4/32R-NLD13F001SP-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMP

  • A4VTG90EP4/32R-NLD13F001SP-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMP
  • A4VTG90EP4/32R-NLD13F001SP-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMP

BOSCH REXROTH A4VTG90EP4/32R-NLD13F001SP-S MODELS

Need a CAD or 3D Model?

What is A4VTG90EP4/32R-NLD13F001SP-S bearing interchange?
Contact NowWhatsAppBe Our Agent

A4VTG90EP4/32R-NLD13F001SP-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMP

category

Bosch Rexroth A4VTG Axial Piston Variable Pump

BOSCH REXROTH A4VTG90EP4/32R-NLD13F001SP-S Bearing SPECIFICATIONS

  • We work 366.6 G1 - Heat Generation Factor (Roller-Raceway) closely 26200 lbf Ca90 - Dynamic Thrust Rating (90 million revolutions)7 with our A4VTG90EP4/32R-NLD13F001SP-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMP 2.6250 in B - Cone Width manufacturing partners to bring the best value to customers.

  • BOSCH REXROTH
  • A4VTG90EP4/32R-NLD13F001SP-S

  • 26200 lbf
  • 366.6
  • 2.6250 in
  • HH224300
  • 0.15 in
  • 0.280 in
  • 47.9
  • Imperial
LINDE HPR HYDRAULIC PUMP SUPPLIER

LINDE HPR HYDRAULIC PUMP SUPPLIERChina

  • LINDE HPR HYDRAULIC PUMP 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

Types of Bosch Rexroth A4VTG Axial Piston Variable Pump

  • 26200 lbf
  • 366.6
  • 2.6250 in
  • HH224300
  • 0.15 in
  • 0.280 in
  • 47.9
  • Imperial
  • 0.118
  • 5.16 in
  • 1.79
  • K150198
  • 4.5000 in
  • 0.16 in
  • 47000 lbf
  • Stamped Steel
  • 204000 lbf
  • 315000 lbf
  • 181000 lbf
  • -0.74 in

BOSCH REXROTH A4VTG90EP4/32R-NLD13F001SP-S A4VTG90EP4/32R-NLD13F001SP-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMP Codes and sizes

 

A4VTG71EZ1/32L-NXD10F071S-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMPC90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)5:22700 lbf; G1 - Heat Generation Factor (Roller-Raceway)11:175; Cage Type:Stamped Steel; R - Cone Frontface To Clear Radius1:0.060 in; G2 - Heat Generation Factor (Rib-Roller End):41.7; C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)3:13000 lbf; da - Cone Frontface Backing Diameter:4.43 in; Cg - Geometry Factor12:0.152;
A7V20DR20RZF BOSCH REXROTH A7V HYDRAULIC PISTON PUMPInside Ring Width B:=Bearings1_Inside Ri; Bolt Hole Length N1:29.4 mm; Dimension T:1.189 in; Series:Industrial; Total Height H2:127.8 mm; Center of Bearing from End S:27.7 mm; Housing Style:Two-Bolt Pillow Bloc; Static Load Rating:6570 lbf; Dimension L1:74.1 mm; Dynamic Load Rating:10800 lbf; Inside Ring Outside Diameter:0.811 in; Bearing Number:G1202KRRB; Total Length L:222.3 mm; Bearing Type:Ball Bearing;
A7V20DR1RPF BOSCH REXROTH A7V HYDRAULIC PISTON PUMPD:360 mm; Configuration:Single Row; Fillet Radius/Chamfer:4 mm; r1:4 mm; Limiting Speed - Grease:1,500 rpm; Radial Clearance:0.090 to 0.145 mm; B:98 mm; db (min):218 mm; Bore Type:Cylindrical Bore; Da (max):342 mm; db (max):240 mm; dd (min):261 mm; Enclosure:Open; d:200 mm; Dynamic Load Rating:925,000 N; Static Load Rating:1,440,000 N; ra (max):3 mm; dc (min):247 mm; Inside Ring Outside Diameter:244 mm;
A7V78LV BOSCH REXROTH A7V HYDRAULIC PISTON PUMPC1 Dynamic Load Rating:446; L:410.00 mm; H2:45.0 mm; G:M24; Housing:SNT 524-620; Shaft Diameter d:3 7/16 in; Adapter Sleeve1:HA2320; C0 Static Load Rating:583; Seal:VR620; H:271 mm; Locating Rings (width x OD):SR215X19.5; Locknut:KM20; Seal Type:V-ring; Jmax:356 mm; J:350.00 mm; Bolt Qty:2; Lockwasher:MB20; Jmin:344 mm; N:26 mm; A:185.00 mm;
A7V16 BOSCH REXROTH A7V HYDRAULIC PISTON PUMPr - Fillet Radius Housing (Max):0.12 in; Bearing Configuration:Thrust TTHD - with c; Static Load Rating:405000 lbf; R - Fillet Radius Shaft (Max):0.12 in; Bearing Type:Thrust Tapered Rolle; Dynamic Load Rating:37900 lbf; d - Bore Diameter:3.0000 in; B:1.312 in; D - Bearing O.D.:6.3750 in;
A4VTG90HW/32R-NLD10F011S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMPAa - Cage-Cone Backface Clearance:0.07 in; d:3.3750 in; D:5.3750 in; G2 - Heat Generation Factor (Rib-Roller End):29.3; T - Bearing Width across Cones:2.7500 in; Ca90 - Dynamic Thrust Rating (90 million revolutions)6:6850 lbf; Y2 - ISO Factor10:2.26; Cg - Geometry Factor12:0.125; Cup Part Number:493D; G1 - Heat Generation Factor (Roller-Raceway)11:105; B - Cone Width:1.1720 in; K - Factor7:1.31; e - ISO Factor8:0.44;
A4VTG71EP2/32R-NSD10F011SGT-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMPBearing - Housing - Seal:LSE704BXHHTPS; Bearing UPC:013992105325; Dimension V:0.1 in; Dimension R:18.7 in; Seal Type:High Temperature Pac; Dimension T:21.0 in; Cor - Static Load Rating:222561 lbf; Shaft Size:7.25 in; Dimension H:4.3 in; Note:This product line wa; Dimension P:1.3 in; Bolt Size:4 x M24; Support Type:Round Flange; Dimension L:7.7 in; Bearing Type:Split Cylindrical Ex; Cr - Dynamic Load Rating:138033 lbf;
A7V80LV2OLZFNO BOSCH REXROTH A7V HYDRAULIC PISTON PUMPda (min):794 mm; B:365 mm; Groove Width A:50 mm; Nr. of Holes:8; Limiting Speed - Oil:280 rpm; Center Guidance:Fixed Inner Ring Rib; Configuration:Double Row; Retainer Material:Machined Brass; Bore Type:Tapered Bore; Fillet Radius/Chamfer:9.5 mm; Dynamic Load Rating:18,100,000 N; Static Load Rating:27,700,000 N; Constant e:0.30; Axial Load Factor Y2:3.34; Radial Clearance:0.570 to 0.750 mm; Weight:1710.000 kg;
A7V055HD-60L-PZB01 BOSCH REXROTH A7V HYDRAULIC PISTON PUMPra1 (max):2 mm; Bore Type:Cylindrical Bore; Configuration:Single Row; Limiting Speed - Grease:5,600 rpm; d:45 mm; Fillet Radius/Chamfer:2 mm; Enclosure:Open; Da (max):110 mm; D:120 mm; dc (min):66 mm; Inside Ring Outside Diameter:64.5 mm; Dynamic Load Rating:107,000 N; B:29 mm; Radial Clearance:0.050 to 0.080 mm; dd (min):74 mm; db (max):63 mm; Limiting Speed - Oil:6,700 rpm; db (min):55 mm; r1:2 mm;
A4VTG090HW100/33MRNC4C92F0000AS- BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMPBearing Type:Split Cylindrical Re; Dimension D:7.0 in; Note:This product line wa; Bearing - Housing - Seal UPC:013992091123; Dimension H:1.1 in; Dimension V:3.5 in; Dimension N:8.0 in; Dimension W:1.0 in; Dimension T:9.5 in; Seal Type:Viton Single Lip; Cor - Static Load Rating:19558 lbf; Bearing Number:LSE111BR; Dimension B:4.5 in; Dimension A:5.0 in; Tensioning Unit Type:Tension Type; Ca - Axial Load Rating:809.30 lbf;
AA4VTG90EP4/32+AA4VTG90EP4/32-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMPDa (max):63 mm; Configuration:Single Row; Limiting Speed - Grease:5,300 rpm; Enclosure:Double Seal; D:65 mm; B:7 mm; Fillet Radius/Chamfer:0.3 mm; Radial Clearance:0.006 to 0.023 mm; d:50 mm; ra (max):0.3 mm; Weight:0.052 kg; Bore Type:Cylindrical Bore; Static Load Rating:5,800 N; da (min):52 mm; Factor fo:16.1; Dynamic Load Rating:6,400 N;
A7V355DR5 1LZF BOSCH REXROTH A7V HYDRAULIC PISTON PUMPAdjustment Screw Bore N:41.00 mm; Bearing Unit - Adapter Sleeve:UK216 - HE2316; Slot Length L3:121.00 mm; Static Load Rating:11915 lbf; Dynamic Load Rating:16344 lbf; Pitch Height H1:165.00 mm; Slot Width A1:26.00 mm; Weight:18.7 lb; Dimension L2:21.00 mm; Grease Nipple Size:B-R1/8; Total Length L:235.00 mm; Socket Width A2:51.00 mm; Housing Width A:70.00 mm; Dimension B1:2.874 in; Height H2:111.00 mm;
A7V250DR R5P BOSCH REXROTH A7V HYDRAULIC PISTON PUMPCg - Geometry Factor7:0.113; Y - ISO Factor1:2.27; C - Double Cup Width:7.3120 in; D:10.875 in; K - Factor3:2.21; Da - Cup Frontface Backing Diameter:10.31 in; e - ISO Factor4:0.26; Series:HM136900; Disclaimer:Counter bore detail; Y2 - ISO Factor6:3.8; Design Units:Imperial; Y1 - ISO Factor5:2.55; r - Cup Frontface To Clear Radius2:0.04 in;
A4VTG90EP2T/32R-NLD10F001SH-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMPDimension K:4.0 in; Bearing Number:HSM135BX; Dimension H:9.016 in; Bolt Size:4 x M30; Dimension H1:2.1 in; Support Type:Four-Bolt Plummer Bl; Dimension H2:19.1 in; Series Type:Heavy Series; Bearing Type:Split Cylindrical Ex; Housing Width:9.1 in; Pillow/Plummer Block Style:Split Cylindrical Ho; Dimension M:7.0 in; Seal Type:Aluminium Triple Lab; Maximum Speed:1340 rpm; Cr - Dynamic Load Rating:208623 lbf;

 

 

No.BrandDGeiANJH
A7V20DR1ZFBOSCH REXROTH10.5 in - - - - - - -
A7V117DR20RPSBOSCH REXROTH - - - - - - - -
A7V250EL51RPFOOBOSCH REXROTH - - - - - - - -
A7V80LV1L2FOOBOSCH REXROTH - - - - - - - -
A7V117DR20RPFBOSCH REXROTH - - - - - - - -
A4VTG71EP2-32L-NLD10FXX1SG-SBOSCH REXROTH140 mm - - - - - - -
A4VTG71EP4/32R-NLD10F001SP-SBOSCH REXROTH - M24 - - 190.00 mm - 380.00 mm290.00 mm
A4VTG90HW/32R-NLD13F001S-SBOSCH REXROTH250 mm - - - - - - -
A4VTG90EP3/32L-NSD10F021SP-SBOSCH REXROTH52 mm - - - - - - -
A4VTG71EP3/32L-NXD13K041EC-SBOSCH REXROTH5.0625 in - - - - - - -
A4VTG71HW/32R-NLD10F001SBOSCH REXROTH290 mm - - - - - - -
A4VTG90HW/32R-NLD13F001S-SBOSCH REXROTH - - - - - - - -
A4VTG71EP2/32+A2FO10/61BOSCH REXROTH - - - 15 mm - - - -
A7V250LV51RPFOOBOSCH REXROTH - - - - - - - -
A4VTG90EP4/32R-NUD10F021SP-SBOSCH REXROTH420 mm - - - - - - -
A4VTG90EZ2/32L-NUD10F001SH-SBOSCH REXROTH - M30x1.5 - - - - - -
A4VTG90EP4/32R-NLD10F011ST-SBOSCH REXROTH - - - - - - - -
A4VTG71HW/32R-NSD10F001SBOSCH REXROTH100 mm - - - - - - -
A4VTG56HWD1-32R-NSC02F023S-SBOSCH REXROTH - M36 - - - - 810 mm675 mm
A4VTG90EP2/32R-NSD10F003S-SBOSCH REXROTH4.3307 in - - - - - - -
A4VTG71HW/32R-NLD10F001SBOSCH REXROTH55 mm - - - - - - -
A7V250LV51RPFHOBOSCH REXROTH - - - - - - - -
A7V20DR20RPGMOBOSCH REXROTH340 mm - - - - - - -

 

A4VTG90EP4/32R-NLD13F001SP-S BOSCH REXROTH A4VTG AXIAL PISTON VARIABLE PUMP Video

 

Axial Piston Variable Pump A4VTG - Airline Hydraulics

Variable axial piston pump of swashplate design for hydro-. – static drives in closed circuit. The flow is proportional to the drive speed and displacement.24 pages

Axial Piston Variable Pump A4VTG - Group VH A/S

Apr 11, 2015 — Variable axial piston pump of swashplate design for hydrostatic. closed circuit transmission ... /20 Bosch Rexroth AG A4VTG RE 92013/04.08.

A4VG series 32 - Axial piston variable pump | Bosch Rexroth AG

High pressure pump for applications in closed circuits; Size 28 … 125; Nominal pressure 400 bar; Maximum pressure 450 bar; Closed circuit; Metric version.

Library: Bosch Rexroth A4VTG71EP4/33MLNC4V82F0000AS-S

Variable axial piston pump of swashplate design for hydro- – ... Swashplate design, variable, nominal pressure 400 bar, maximum pressure 450 bar, ...

Bosch Rexroth variable pumps, closed circuit - Alfa Hydraulics

Axial piston variable pump A4VTG series 33 · High pressure pump for the drum drive in mobile concrete mixers · Size 71 … 90 · Nominal pressure 400 bar · Maximum ...

A4VTG90 Pumps A4VTG Bosch Rexroth - Pressoil

– Variable axial piston Bosch Rexroth pump of swashplate design for hydrostatic drives in closed circuit. – The flow is proportional to the drive speed and ...

Rexroth Axial Piston Variable Pump A4VG

- Size 71 … 90, such as A4VTG 071 EP3**/33R, A4VTG 090 EP4**/33R. - Nominal pressure 400 bar.

Axial Piston Variable Pump A4VG

We recommend that all DG applications be reviewed by a Bosch. Rexroth application engineer. If the pump is also equipped with a DA control valve (see page 17), ...

Axial Piston Variable Pump A4VTG

Bosch Rexroth AG. 5/52. About this document. Abbreviations used. 1.2. As umbrella term for "A4VTG axial piston variable pump", the designation "axial piston ...52 pages

BOSCH REXROTH A4VTG90EP4/32R-NLD13F001SP-S INTERCHANGE

Bosch Rexroth A4VTG Axial Piston Variable Pump Part series A4VTG90EP4/32R-NLD13F001SP-S is a potential replacement for these common bearing part numbers:

  • A4VTG90EP4/32R-NLD13F001SP-S

  • A4VTG90EP4/32R-NLD13F001SP-S

  • A4VTG90EP4/32R-NLD13F001SP-S

  • A4VTG90EP4/32R-NLD13F001SP-S

  • A4VTG90EP4/32R-NLD13F001SP-S

  • A4VTG90EP4/32R-NLD13F001SP-S

  • A4VTG90EP4/32R-NLD13F001SP-S

  • A4VTG90EP4/32R-NLD13F001SP-S

Contact Us

LINDE HPR HYDRAULIC PUMP SUPPLIER
Address
Phone(Working Time)
Fax
  • LINDE HPR HYDRAULIC PUMP 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 A4VTG90EP4/32R-NLD13F001SP-S Technical Articles

How does a variable-displacement motor work?
Bent Axis Piston Motor Variable Displacement - EatonGeneral Overview BAV7. 4. Specifications and Performance Technical Data. 5. Model Code. 6. Control Options: Model Code 14, 15. Working Pressure – PA.45 pages Fundamentals of Hydraulic Motors | Power &...
What are the two types of displacement pumps?
Different Types of Pumps - Positive Displacement PumpsDifferent types of positive displacement pumps · Rotary Pumps Positive Displacement · Reciprocating Pumps Positive Displacement · Linear Type Positive Displacement. Positive Displacement Pumps and...
What are the two types of piston pump?
Engineering Essentials: Fundamentals of Hydraulic PumpsJan 1, 2012 — When a hydraulic pump operates, it performs two functions. There are two basic types, axial and radial piston; both area available as  What is a piston pump? its working, types,...

Bosch Rexroth A4VTG Axial Piston Variable Pump CATEGORIES

  • Linde HPR Hydraulic Pump
  • Kawasaki K5V Hydraulic Pump
  • Kawasaki K3VL Axial Piston Pump
  • Kawasaki K3VG Variable Displacement Axial Piston Pump
  • Kawasaki K3V Hydraulic Pump
  • Bosch Rexroth A8VO Variable Displacement Pumps
  • Bosch Rexroth A4VSG Axial Piston Variable Pump
  • Bosch Rexroth A7VO Variable Displacement Pumps
  • Bosch Rexroth A4VTG Axial Piston Variable Pump
  • Bosch Rexroth A4VSO Variable Displacement Pumps
  • Bosch Rexroth A4VG Variable Displacement Pumps
  • Bosch Rexroth A4V Variable Pumps
  • Bosch Rexroth A10VG Axial Piston Variable Pump
  • Bosch Rexroth A10VO Piston Pumps
  • Bosch Rexroth A10VSO Variable Displacement Pumps
  • Bosch Rexroth A11VG Hydraulic Pumps
  • Bosch Rexroth A11VLO Axial Piston Variable Pump
  • Bosch Rexroth A11VO Axial Piston Pump
  • Bosch Rexroth A15VSO Axial Piston Pump
  • Bosch Rexroth A2FO Fixed Displacement Pumps
  • Bosch Rexroth A10VNO Axial Piston Pumps
  • Bosch Rexroth A2V Variable Displacement Pumps
More

Customers Who Viewed BOSCH REXROTH A4VTG90EP4/32R-NLD13F001SP-S Bearing Also Viewed

  • A A7V 1000 HD 51RPFOO-SO BOSCH REXROTH A7V HYDRAULIC PISTON PUMP
  • A A7V 1000 LV 51RPFHO BOSCH REXROTH A7V HYDRAULIC PISTON PUMP
  • A A7V 250 LV 51RPFHO-SO BOSCH REXROTH A7V HYDRAULIC PISTON PUMP
  • A A7V 355 HD 51LPFOO-SO BOSCH REXROTH A7V HYDRAULIC PISTON PUMP
  • A A7V 468 SU.LEIST.R.DRUCKABSCH. BOSCH REXROTH A7V HYDRAULIC PISTON PUMP
 
  • About Us|
  • Contact Us|
  • Site Map
  • Sitemaps

LINDE HPR HYDRAULIC PUMP SUPPLIER. Copyright © 2017 - 2023 All Rights Reserved.

  • Home
  • Stock Categories
    • Linde HPR Hydraulic Pump
    • Kawasaki K5V Hydraulic Pump
    • Kawasaki K3VL Axial Piston Pump
    • Kawasaki K3VG Variable Displacement Axial Piston Pump
    • Kawasaki K3V Hydraulic Pump
    • Bosch Rexroth A8VO Variable Displacement Pumps
    • Bosch Rexroth A4VSG Axial Piston Variable Pump
    • Bosch Rexroth A7VO Variable Displacement Pumps
    • Bosch Rexroth A4VTG Axial Piston Variable Pump
    • Bosch Rexroth A4VSO Variable Displacement Pumps
    • Bosch Rexroth A4VG Variable Displacement Pumps
    • Bosch Rexroth A4V Variable Pumps
    • Bosch Rexroth A10VG Axial Piston Variable Pump
    • Bosch Rexroth A10VO Piston Pumps
    • Bosch Rexroth A10VSO Variable Displacement Pumps
    • Bosch Rexroth A11VG Hydraulic Pumps
    • Bosch Rexroth A11VLO Axial Piston Variable Pump
    • Bosch Rexroth A11VO Axial Piston Pump
    • Bosch Rexroth A15VSO Axial Piston Pump
    • Bosch Rexroth A2FO Fixed Displacement Pumps
    • Bosch Rexroth A10VNO Axial Piston Pumps
    • Bosch Rexroth A2V Variable Displacement Pumps
  • Technical Articles
  • Linde HPR Hydraulic Pump
  • Kawasaki K5V Hydraulic Pump
  • Kawasaki K3VL Axial Piston Pump
✖

Home

Stock Categories

Technical Articles

Linde HPR Hydraulic Pump

Kawasaki K5V Hydraulic Pump

Kawasaki K3VL Axial Piston Pump

Contact Us