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  • Thread Nominal D(φ)
  • Nut O.D. D(φ)
  • Nut Length L1 (or L)(mm)
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    • MISUMI

    Lead Screw Nuts / Anti-Basklash Type

    Lead Screw Nuts / Anti-Basklash Type

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    Part number:

    Still undefined. 4 possible part numbers found.
    Quantity:

    Outline drawing and specifications table

    Dimensional Drawing

    MTBLR (Right-Hand Thread)
    Nuts for Lead Screws - Anti-Backlash: Related Image
    [ ! ] Main nut has 4 marks for confirmation of groove positioning.
    h8 Tolerance (D)
    Overor lessTolerance
    360
    －0.018
    6100
    －0.022
    10180
    －0.027
    18300
    －0.033
    30500
    －0.039
    50800
    －0.046
    Compliant with JIS B 0401
    Dimensional Tolerances
    Without Command
    Overor lessTolerance
    0.53±0.1
    36±0.1
    630±0.2
    30120±0.3
    Compliant with JIS B 0405 
    Class m (intermediate).
    ■ Components
    Part NameMaterialQty.
    Main NutBrass1
    Secondary NutBrass1
    Wave SpringJIS−SWRH72B1
    Set ScrewEN 1.7220 Equiv.2
    Material: Brass
    Lead Screw Accuracy
    ItemContent
    Standard ChevronTr Standard (Old TM Standard)
    Tolerance and Allowable DimensionJIS B 0217-1,2
    Screw Accuracy (Threaded)7e
    Nut Accuracy (Tapped)7H
    Single Pitch Error±0.02
    Accumulated Pitch Error±0.15/300mm
    The Tr standard has the same standard dimensions as the
    old JIS TM standard (abolished).
    Dimensional tolerances are regulated for Tr standard.
    Standard Chevron Dimensions
    H=1.866PH1=0.5Pd2=d-0.5P
    d1=d-PD=dD2=d2D1=d1
    Male Thread　d:O.D.　　d1:Root Dia.d2:Effective Dia.
    Female ThreadD:Root Dia.D1:I.D.　D2:Effective Dia.
     P:PitchH1:Engage Height

    Specification Table

    Part Number
    MTBLR20
    Part NumberPitch
    P    		DD1T(L1)JBP.C.D.KMAllowable Dynamic Thrust
    (kN)    		Mass
    (g)
    Typed
    Round Flanged
    MTBLR    		10220365331315264.332.60100
    12224436.516.516315.43.39130
    16328516452120386.646.29230
    2043256522425429.32310
    Not available for left-hand threads. By using small head cap screws , you can avoid interference between the screw and the body.
    For orders larger than indicated quantity, please request a quotation

    [ ! ] This product is a single thread screw and therefore the pitch P = lead.
    [ ! ] Recommended Grease: Lithium soap-based grease No. 2 (Please wipe off the antirust oil before applying.)

    Related Components

    30-degree Lead Screw30-degree Trapezoidal Screw for Nut Bracket30-degree Trapezoidal Screw for Support Units
    Square Type    		30-degree Trapezoidal Screw for Support Units
    Round Type

    Part number list

    Number of items
  • 1
    • Part number
    MTBLR10
    MTBLR12
    MTBLR16
    MTBLR20

    Thread Nominal D

    (φ)

    Allowable Dynamic Thrust

    (N)

    Nut O.D. D

    (φ)

    Nut Length L1 (or L)

    (mm)

    		RoHS?Minimum order quantity
    10
    2600
    20
    34
    10
    1 pieces
    12
    3390
    22
    36.5
    10
    1 pieces
    16
    6290
    28
    45
    10
    1 pieces
    20
    9320
    32
    52
    10
    1 pieces
    Unit price (excluding VAT)(Unit price including VAT)
    Standard shipping days
    119.27 €
    ( 141.93 € )
    5 working days
    119.27 €
    ( 141.93 € )
    Stock item: 1 working dayAvailable for same-day shipping
    122.29 €
    ( 145.53 € )
    Stock item: 1 working dayAvailable for same-day shipping
    135.76 €
    ( 161.55 € )
    Stock item: 1 working dayAvailable for same-day shipping
  • 1

    • More Information

    Basic information

    Technical information

    Outline and specifications

    Specifications/Overview

    ■Features of Anti-Backlash
    Anti-Backlash


    Anti-Backlash can eliminate play between shaft and nut
    by spring force of slim preload spring installed between main nut and secondary nut.
    Even if there is abrasion, spring force controls backlash.
    (*) The effects will vary depending on applied conditions (Load and Direction).    		 
    Regular Type 


    Regular Type has axial play of shaft and nut,
    and this causes backlash
    on reverse driving direction.
     

    ■Installation of Anti-Backlash
    (1) Remove the tape that is temporarily holding the main and secondary nuts.
    　(In this condition, the main and secondary nuts are fixed by 2 set screws.)
    (2) While the set screw is fixed, turn the shaft of lead screw as it is inserted.
    (3) After insertion of secondary nut, set screw is rotated approximately 45° to 90° to loosen.
    　(Clamping force between the main and secondary nuts is released and spring force works.)
    [!] The mounted set screw must not protrude out from external diameter of secondary nut. In order to prevent dropout of set screw
    due to vibration and the like, insert to secondary nut part of housing.
    (1) Positioning Error Comparison (Reference Value) (2) Positioning Repeatability Error Comparison (Reference Value)

         		    
    ·Controls the deterioration in precision of positioning caused by Moment of Inertia
    during shut-down of motion and driving fluctuation effect.    		 ·Anti-backlash design improves the system repeatability.
    　Test Conditions: Sample Nut: MTBLR16 Shaft: MTSRG16-270 Travel Distance: 75 mm