Product Search

    SEARCH NOW FOR ALL YOUR BECKHOFF SOLUTIONS

    Radwell is here to supply you with all your plant floor needs.

    Servo Products / Servo Drive/Servo Control

    Radwell is not an authorized distributor, reseller or representative of the products featured on this website. All product names, trademarks, brands and logos used on this site are the property of their respective owners. The depiction, description or sale of products featuring these names, trademarks, brands and logos is for identification purposes only and is not intended to indicate any affiliation with or authorization by any rights holder.

    Filter Results
    Results 301-350 of 511.
    BECKHOFF AX2003-B200-0000

    BECKHOFF

    AX2003-B200-0000

    SERVO DRIVE, DIGITAL COMPACT, 3 AMP, 3 PHASE, 230-480 VAC, 50/60 HZ, 2 KVA, W/ FIELDBUS-INTERFACE FOR BECKHOFF-LIGHTBUSINTEGRATED MAINS FILTER
    $3,786.00 Buy Surplus As Low As $2,272.00
    $2,272.00
    Repair Yours $1,886.00
    BECKHOFF AX2020-AS

    BECKHOFF

    AX2020-AS

    DISCONTINUED BY THE MANUFACTURER, SERVO DRIVE, 20AMP
    Buy Surplus As Low As $3,960.00
    $3,960.00
    Repair Yours $3,300.00
    BECKHOFF AX2040-0000-0001

    BECKHOFF

    AX2040-0000-0001

    DIGITAL SERVO DRIVE, RATED CURRENT 40A,WITH OPTION-AS-RESTART LOCK (PERSONALLY SAFE FUNCTION)ROD/SSI, ANALOG INTERFACE, CAN INTERFACE,ADITIONAL NECESSARY:MAINS CHOKEBALLAST RESISTORMAINS FIL ...
    $11,926.00 Buy Surplus As Low As $7,156.00
    $7,156.00
    Repair Yours $5,940.00
    BECKHOFF AX2020B900000Z

    BECKHOFF

    AX2020B900000Z

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 20 A, ETHERNET INTERFACE
    $4,966.00 Buy Surplus As Low As $2,980.00
    $2,980.00
    Repair Yours $2,474.00
    BECKHOFF AX2020B750000Z

    BECKHOFF

    AX2020B750000Z

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 20 A, SERCOS INTERFACE
    $5,309.00 Buy Surplus As Low As $3,186.00
    $3,186.00
    Repair Yours $2,645.00
    BECKHOFF AX2020B520000Z

    BECKHOFF

    AX2020B520000Z

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 20 A, DEVICENET INTERFACE
    $5,309.00 Buy Surplus As Low As $3,186.00
    $3,186.00
    Repair Yours $2,645.00
    BECKHOFF AX5140-0000-0201

    BECKHOFF

    AX5140-0000-0201

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 40 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-599 HZ SPECIAL COATED BOARDS FOR ...
    $4,038.28 Buy Surplus As Low As $2,081.00
    $2,081.00
    Repair Yours $1,728.00
    BECKHOFF AX5140-0000-0000

    BECKHOFF

    AX5140-0000-0000

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 40 A,1 AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTER0-599HZ
    $3,809.00 Buy Surplus As Low As $2,286.00
    $2,286.00
    Repair Yours $1,898.00
    BECKHOFF AX5125-0000-0201

    BECKHOFF

    AX5125-0000-0201

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 25 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-599 HZ SPECIAL COATED BOARDS FOR ...
    $3,663.04 Buy Surplus As Low As $1,889.00
    $1,889.00
    Repair Yours $1,568.00
    BECKHOFF AX5125-0000-0010

    BECKHOFF

    AX5125-0000-0010

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 25 A,
    $3,218.00 Buy Surplus As Low As $1,931.00
    $1,931.00
    Repair Yours $1,603.00
    BECKHOFF AX5118-0000-2202

    BECKHOFF

    AX5118-0000-2202

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 18A,1-AXIS DRIVE, 100-480 VACECONOMY TYPEETHERCAT INTERFACEOCT FEEDBACKINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ
    $2,021.00 Buy Surplus As Low As $1,213.00
    $1,213.00
    Repair Yours $1,007.00
    BECKHOFF AX5118-0000-1202

    BECKHOFF

    AX5118-0000-1202

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 18A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.00-599 HZSPECIAL VERSION -1202:- ID NAGEL P-0-0851- FIRMWA ...
    $2,519.46 Buy Surplus As Low As $1,299.00
    $1,299.00
    Repair Yours $1,079.00
    BECKHOFF AX5118-0000-0010

    BECKHOFF

    AX5118-0000-0010

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 18A,
    $2,304.00 Buy Surplus As Low As $1,383.00
    $1,383.00
    Repair Yours $1,148.00
    BECKHOFF AX5112-0000-2202

    BECKHOFF

    AX5112-0000-2202

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 12A,1-AXIS DRIVE, 100-480 VACECONOMY TYPEETHERCAT INTERFACEOCT FEEDBACKINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ
    $1,471.75 Buy Surplus As Low As $884.00
    $884.00
    Repair Yours $734.00
    BECKHOFF AX5112-0000-1203

    BECKHOFF

    AX5112-0000-1203

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 12A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.00-599 HZSPECIAL VERSION -1203:- ID NAGEL IDN P-0-0851- FI ...
    $1,707.63 Buy Surplus As Low As $1,025.00
    $1,025.00
    Repair Yours $851.00
    BECKHOFF AX5112-0000-0212

    BECKHOFF

    AX5112-0000-0212

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 12 A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-833 HZ
    $1,707.63 Buy Surplus As Low As $1,025.00
    $1,025.00
    Repair Yours $851.00
    BECKHOFF AX5112-0000-0001

    BECKHOFF

    AX5112-0000-0001

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 12A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTER0-599 HZ SPECIAL COATED BOARDS FOR THE USE AT SPECIAL AMBIENCE CONDITIONSMINI ...
    $1,963.95 Buy Surplus As Low As $1,179.00
    $1,179.00
    Repair Yours $979.00
    BECKHOFF AX5106-0000-2202

    BECKHOFF

    AX5106-0000-2202

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6A,1-AXIS DRIVE, 100-480 VACECONOMY TYPEETHERCAT INTERFACEOCT FEEDBACKINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ
    $1,315.36 Buy Surplus As Low As $790.00
    $790.00
    Repair Yours $656.00
    BECKHOFF AX5106-0000-1204

    BECKHOFF

    AX5106-0000-1204

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ
    $1,543.55 Buy Surplus As Low As $927.00
    $927.00
    Repair Yours $770.00
    BECKHOFF AX5106-0000-1011

    BECKHOFF

    AX5106-0000-1011

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 6A,
    $1,564.95 Buy Surplus As Low As $939.00
    $939.00
    Repair Yours $780.00
    BECKHOFF AX5103-0000-2202

    BECKHOFF

    AX5103-0000-2202

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 3A,1-AXIS DRIVE, 100-480 VACECONOMY TYPEETHERCAT INTERFACEOCT FEEDBACKINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ
    $1,110.00 Buy Surplus As Low As $666.00
    $666.00
    Repair Yours $553.00
    BECKHOFF AX5103-0000-0212

    BECKHOFF

    AX5103-0000-0212

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 3A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-833 HZ
    $1,447.35 Buy Surplus As Low As $747.00
    $747.00
    Repair Yours $621.00
    BECKHOFF AX5103-0000-0210

    BECKHOFF

    AX5103-0000-0210

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 3A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-833 HZ
    $1,447.35 Buy Surplus As Low As $747.00
    $747.00
    Repair Yours $621.00
    BECKHOFF AX5103-0000-0203

    BECKHOFF

    AX5103-0000-0203

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 3A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ SPECIAL COATED BOARDS FOR ...
    $1,590.29 Buy Surplus As Low As $821.00
    $821.00
    Repair Yours $682.00
    BECKHOFF AX5101-0000-0212

    BECKHOFF

    AX5101-0000-0212

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 1.5A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-833 HZ
    $1,422.33 Buy Surplus As Low As $734.00
    $734.00
    Repair Yours $610.00
    BECKHOFF AX5101-0000-0210

    BECKHOFF

    AX5101-0000-0210

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 1.5A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-833 HZ
    $1,422.33 Buy Surplus As Low As $734.00
    $734.00
    Repair Yours $610.00
    BECKHOFF AX5101-0000-0203

    BECKHOFF

    AX5101-0000-0203

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 1.5A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION >= 2.100-599 HZ SPECIAL COATED BOARDS F ...
    $1,565.28 Buy Surplus As Low As $807.00
    $807.00
    Repair Yours $670.00
    BECKHOFF AX5101-0000-0201

    BECKHOFF

    AX5101-0000-0201

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 1.5A,1-AXIS DRIVE, 100-480 VACETHERCAT INTERFACEINTEGRATED MAINS FILTERHARDWARE VERSION 2.0FIRMWARE VERSION 2.060-599 HZ SPECIAL COATED BOARDS FOR ...
    $1,565.28 Buy Surplus As Low As $807.00
    $807.00
    Repair Yours $670.00
    BECKHOFF AX2020-B750-0000

    BECKHOFF

    AX2020-B750-0000

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 20A,ROD/SSI, ANALOG INTERFACE,WITH FIELDBUS-INTERFACE FOR SERCOS,INTEGRATED MAINS FILTER
    $6,391.00 Buy Surplus As Low As $3,835.00
    $3,835.00
    Repair Yours $3,184.00
    BECKHOFF AX2020-B520-0001

    BECKHOFF

    AX2020-B520-0001

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 20A,WITH OPTION-AS-RESTART LOCK (PERSONALLY SAFE FUNCTION)ROD/SSI, ANALOG INTERFACE,WITH FIELDBUS INTERFACE FOR DEVICE NETINTEGRATED MAINS FILTERRE ...
    $6,741.00 Buy Surplus As Low As $4,045.00
    $4,045.00
    Repair Yours $3,358.00
    BECKHOFF AX2020-B310-0001

    BECKHOFF

    AX2020-B310-0001

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 20A,WITH OPTION-AS-RESTART LOCK (PERSONALLY SAFE FUNCTION)ROD/SSI, ANALOG INTERFACE,WITH FIELDBUS INTERFACE FOR PROFIBUS-DPINTEGRATED MAINS FILTERR ...
    $6,741.00 Buy Surplus As Low As $4,045.00
    $4,045.00
    Repair Yours $3,358.00
    BECKHOFF AX2020-B310-0000

    BECKHOFF

    AX2020-B310-0000

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 20A,ROD/SSI, ANALOG INTERFACE,WITH FIELDBUSINTERFACE FOR PROFIBUS-DPINTEGRATED MAINS FILTER
    $6,391.00 Buy Surplus As Low As $3,835.00
    $3,835.00
    Repair Yours $3,184.00
    BECKHOFF AX2020-0000-0000

    BECKHOFF

    AX2020-0000-0000

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 20 A,ROD/SSI, ANALOG INTERFACE, CAN INTERFACE,INTEGRATED MAINS FILTER
    $5,493.00 Buy Surplus As Low As $3,296.00
    $3,296.00
    Repair Yours $2,736.00
    BECKHOFF AX2010-B900-0001

    BECKHOFF

    AX2010-B900-0001

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 10A,
    $5,424.00 Buy Surplus As Low As $3,255.00
    $3,255.00
    Repair Yours $2,702.00
    BECKHOFF AX2010-B900-0000

    BECKHOFF

    AX2010-B900-0000

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 10A,_X000D_ROD/SSI, ANALOG INTERFACE,_X000D_WITH FIELDBUS INTERFACE FOR ETHERNET,_X000D_INTEGRATED MAINS FILTER_X000D_ _X000D_
    $5,088.00 Buy Surplus As Low As $3,053.00
    $3,053.00
    Repair Yours $2,534.00
    BECKHOFF AX2010-B750-0001

    BECKHOFF

    AX2010-B750-0001

    DIGITAL COMPACT SERVO DRIVE, RATED CURRENT 10A,OPTION-AS- RESTART LOCK (PERSONALLY SAFE FUNCTION)ROD/SSI, ANALOG INTERFACE,WITH FIELDBUS-INTERFACE FOR SERCOSINTEGRATED MAINS FILTERRESTART LO ...
    $5,832.00 Buy Surplus As Low As $3,500.00
    $3,500.00
    Repair Yours $2,905.00
    BECKHOFF AMP8042-J010-0000

    BECKHOFF

    AMP8042-J010-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=4.10NM, IO=6.90A, NN=8000 1/MINSMOOTH SHAFTFEEDBACK SINGLE-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITHOUT HOLDING BRAKE
    $2,131.00 Buy Surplus As Low As $1,279.00
    $1,279.00
    Repair Yours $1,062.00
    BECKHOFF AMP8042-E011-0000

    BECKHOFF

    AMP8042-E011-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=3.90NM, IO=2.05A, NN=2500 1/MINSMOOTH SHAFTFEEDBACK SINGLE-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITH HOLDING BRAKE
    $2,318.00 Buy Surplus As Low As $1,391.00
    $1,391.00
    Repair Yours $1,155.00
    BECKHOFF AMP8042-E010-0000

    BECKHOFF

    AMP8042-E010-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=3.90NM, IO=2.05A, NN=2500 1/MINSMOOTH SHAFTFEEDBACK SINGLE-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITHOUT HOLDING BRAKE
    $2,131.00 Buy Surplus As Low As $1,279.00
    $1,279.00
    Repair Yours $1,062.00
    BECKHOFF AMP8041-H021-0000

    BECKHOFF

    AMP8041-H021-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=2.15NM, IO=5.25A, NN=8000 1/MINSMOOTH SHAFTFEEDBACK MULTI-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITH HOLDING BRAKE
    $2,374.00 Buy Surplus As Low As $1,425.00
    $1,425.00
    Repair Yours $1,183.00
    BECKHOFF AMP8041-H020-0000

    BECKHOFF

    AMP8041-H020-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=2.15NM, IO=5.25A, NN=8000 1/MINSMOOTH SHAFTFEEDBACK MULTI-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITHOUT HOLDING BRAKE
    $2,189.00 Buy Surplus As Low As $1,314.00
    $1,314.00
    Repair Yours $1,091.00
    BECKHOFF AMP8041-E041-0000

    BECKHOFF

    AMP8041-E041-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=2.40NM, IO=3.00A, NN=6000 1/MINSMOOTH SHAFTFEEDBACK MULTI-TURN 24BITTWINSAFE: SAFE MOTION, INTEGRATED TWINSAFE-LOGICWITH HOLDING BRAKE
    $2,443.00 Buy Surplus As Low As $1,466.00
    $1,466.00
    Repair Yours $1,217.00
    BECKHOFF AMP8041-E040-0000

    BECKHOFF

    AMP8041-E040-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=2.40NM, IO=3.00A, NN=6000 1/MINSMOOTH SHAFTFEEDBACK MULTI-TURN 24BITTWINSAFE: SAFE MOTION, INTEGRATED TWINSAFE-LOGICWITHOUT HOLDING BRAKE
    $2,259.00 Buy Surplus As Low As $1,356.00
    $1,356.00
    Repair Yours $1,126.00
    BECKHOFF AMP8041-E020-0000

    BECKHOFF

    AMP8041-E020-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=2.40NM, IO=3.00A, NN=6000 1/MINSMOOTH SHAFTFEEDBACK MULTI-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITHOUT HOLDING BRAKE
    $2,189.00 Buy Surplus As Low As $1,314.00
    $1,314.00
    Repair Yours $1,091.00
    BECKHOFF AMP8041-E011-0000

    BECKHOFF

    AMP8041-E011-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=2.40NM, IO=3.00A, NN=6000 1/MINSMOOTH SHAFTFEEDBACK SINGLE-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITH HOLDING BRAKE
    $2,237.00 Buy Surplus As Low As $1,343.00
    $1,343.00
    Repair Yours $1,115.00
    BECKHOFF AMP8041-D020-0000

    BECKHOFF

    AMP8041-D020-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=2.25NM, IO=1.60A, NN=3000 1/MINSMOOTH SHAFTFEEDBACK MULTI-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITHOUT HOLDING BRAKE
    $2,189.00 Buy Surplus As Low As $1,314.00
    $1,314.00
    Repair Yours $1,091.00
    BECKHOFF AMP8041-D011-0000

    BECKHOFF

    AMP8041-D011-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=2.25NM, IO=1.60A, NN=3000 1/MINSMOOTH SHAFTFEEDBACK SINGLE-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITH HOLDING BRAKE
    $2,237.00 Buy Surplus As Low As $1,343.00
    $1,343.00
    Repair Yours $1,115.00
    BECKHOFF AMP8041-D010-0000

    BECKHOFF

    AMP8041-D010-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=2.25NM, IO=1.60A, NN=3000 1/MINSMOOTH SHAFTFEEDBACK SINGLE-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITHOUT HOLDING BRAKE
    $2,051.00 Buy Surplus As Low As $1,231.00
    $1,231.00
    Repair Yours $1,022.00
    BECKHOFF AMP8051-G040-0000

    BECKHOFF

    AMP8051-G040-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=4.60NM, IO=4.50A, NN=5000 1/MINSMOOTH SHAFTFEEDBACK SINGLE-TURN 24BITTWINSAFE: SAFE MOTION, INTEGRATED TWINSAFE-LOGICWITHOUT HOLDING BRAKE
    $2,374.00 Buy Surplus As Low As $1,425.00
    $1,425.00
    Repair Yours $1,183.00
    BECKHOFF AMP8051-G020-0000

    BECKHOFF

    AMP8051-G020-0000

    DISTRIBUTED SERVO DRIVE 560V DCMO=4.60NM, IO=4.50A, NN=5000 1/MINSMOOTH SHAFTFEEDBACK MULTI-TURN 24BITTWINSAFE: STO/SS1, INTEGRATED TWINSAFE-LOGICWITHOUT HOLDING BRAKE
    $2,304.00 Buy Surplus As Low As $1,383.00
    $1,383.00
    Repair Yours $1,148.00
    Previous Next
    1 2 3 4 5 6 7 8 9 10 11