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Full-Ball Type LM Guide, Radial Type, SR Type (Part Numbers - CAD Download)

Full-Ball Type LM Guide, Radial Type, SR Type

THK

THK

[Features]
·A compact type with a low cross-sectional height, ideal for horizontal guides due to the ball contact structure that is resistant to loads in the radial direction
·Since it is an automatic adjustment type that can absorb the parallelism of the 2 axes and the accuracy error of the level reasonably, high precision and smooth movement can be obtained
·The return part of each ball row is designed so that balls circulate smoothly by the guide part of the end plate, so a rolling motion with a small sound can be obtained
·Even with respect to preload and eccentric load, the differential slip of the ball is small, it has excellent abrasion resistance, and it is possible to maintain accuracy for a long period of time
·LM blocks, LM rails, and balls can be handled with stainless steel
·Even if the LM block is pulled out from the LM rail, the ball is held by the holding plate and will not fall off

(i)Remark

  • The G dimension (distance from the rail flange to the mounting hole) is processed so that it is even on the left and right.
    Please note that the G dimension may differ from the values listed in the catalog and CAD depending on the overall length of the product.
  • When ordering multiple shaft types, input multiples of the number of required shafts as the order quantity.
    (Example) If the required number of axes is 2 (-II), then the number of orders will be"2 pcs., 4 pcs., 6 pcs.: "
    If the required number of axes is 3 (-III), then the number of orders will be"3 pcs., 6 pcs., 9 pcs.: "

Part Number

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the corresponding part number is displayed here.

Drawing

[Short Delivery Size]Full-ball type LM guide, radial type, SR type, drawing 1

SR-W type, SR-WM type, SR-V type, SR-VM type

 
[Short Delivery Size]Full-ball type LM guide, radial type, SR type, drawing 2

SR-TB type, SR-TBM type, SR-SB type, SR-SBM type

Standard Table

Unit: mm
[Short Delivery Size]Full-ball type LM guide, radial type, SR type, standard table

SR-W type, SR-WM type, SR-V type, SR-VM type

[Short Delivery Size]Full-ball type LM guide, radial type, SR type, standard table 2

SR-TB type, SR-TBM type, SR-SB type, SR-SBM type

*1)

Length *:

  • Length Max indicates the standard maximum length of the LM rail.

Allowable static moment *:

  • 1 pc.: Static permissible moment in 1 LM block
  • 2 pcs. in close contact: Static permissible moment when 2 LM blocks are in close contact

Block overall length dimension L:

  • The block overall length L shown in the dimension table is the dimension when the dust-proof symbol is UU or SS. If other dust-proof parts or lubrication devices are installed, the overall block length L will increase.
  • The symbol M in the nominal model number indicates that the material of the LM block, LM rail and ball is stainless steel.

Stainless steel products have excellent corrosion resistance and environmental resistance.
 

*2) 2 types of rails with different mounting hole dimensions are available for SR15 type and 25 type.

Nominal Model NumberStandard RailSemi-standard rail
SR15For M3 (No symbol)For M4 (Symbol Y)
SR25For M6 (Symbol Y)For M5 (No symbol)

 Please be careful about the mounting hole dimensions of the LM rail when replacing it with the SSR type.
 

*3) The basic rated load in the dimension table is the value for the load in the radial direction.

Data to be displayed
30
45
60
  1. 1
Part Number
SR15TB[1,​2,​3,​4,​5,​6,​7,​8,​9]+[73-2920/1]LY
SR20TBXX[1,​2,​3,​4,​5,​6,​7,​8,​9]+[80-2920/1]L
SR25TB[1,​2,​3,​4,​5,​6,​7,​8,​9]+[96-2920/1]LY
SR30TB[1,​2,​3,​4,​5,​6,​7,​8,​9]M+[110-2440/1]LM
SR30TBXX[1,​2,​3,​4,​5,​6,​7,​8,​9]+[110-2920/1]L
SR35TB[1,​2,​3,​4,​5,​6,​7,​8,​9]M+[124-2440/1]LM
SR35TBXX[1,​2,​3,​4,​5,​6,​7,​8,​9]+[124-2920/1]L
Part NumberMinimum order quantityVolume Discount
Standard
Shipping Days
?
Block Type Rail Width W1
(mm) 		Material Nominal Part Number Basic Load Rating Dynamic Rating C
(N) 		Basic Load Rating Static Rating Co
(N) 		Allowable Static Moment MA
(Nm) 		Allowable Static Moment MB
(Nm) 		Allowable Static Moment MC
(Nm) 		Block Mounting Hole Pitch (Width Direction)
(mm) 		Block Mounting Hole Pitch (Length Direction)
(mm) 		Block Mounting Hole Diameter Rail Mounting Hole Pitch
(mm) 		Rail Mounting Hole Diameter Block external dimension W
(mm) 		Block external dimension L
(mm) 		Mounting hole for blocks Number of block mounting holes
(holes) 		Mounting Hole Dimension H
(ø) 		Mounting Hole Screw Depth
(mm) 		Block dimension L1
(mm)
1 7 Days Wide15Carbon steel1595101930092.556.711341264.5604.55257Drilled Hole44.5Through39.5
1 7 Days Wide20Carbon steel20125002520014689.619449325.56065966.2Drilled Hole44.5Through46.7
1 7 Days Wide-Carbon steel252030039500286175355603576077383Drilled Hole47Through59
1 7 Days Wide-Stainless Steel304560064400564346703724098079096.8Drilled Hole49Through69.3
1 7 Days Wide-Carbon steel303000056800494303611724098079096.8Drilled Hole49Through69.3
1 7 Days Wide-Stainless Steel356040081800785482108082509809100111Drilled Hole49Through79
1 7 Days Wide-Carbon steel354170077200740454101082509809100111Drilled Hole49Through79

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  1. 1

Basic information

Set / Single Item Set Rail Type Standard Ball Arrangement 4-Row, Circular
Retainer N/A Rolling Element Ball

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Basic Attributes

  • Rail Width W1(mm)

    • 15
    • 20

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  • Material

    • Carbon steel
    • Stainless Steel

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  • Nominal Part Number

    • 15
    • 20
    • 25
    • 30
    • 35

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  • Block Mounting Hole Pitch (Width Direction)(mm)

    • 26
    • 32
    • 35
    • 40
    • 41
    • 49
    • 50
    • 60
    • 72
    • 82

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  • Block Mounting Hole Pitch (Length Direction)(mm)

    • 26
    • 32
    • 35
    • 40
    • 50

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  • Block Mounting Hole Diameter

    • 4
    • 4.5
    • 5
    • 5.5
    • 6
    • 7
    • 8
    • 9

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  • Rail Mounting Hole Pitch(mm)

    • 60
    • 80

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  • Rail Mounting Hole Diameter

    • 4.5
    • 6
    • 7
    • 9

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  • Block external dimension W(mm)

    • 34
    • 42
    • 48
    • 52
    • 59
    • 60
    • 70
    • 73
    • 90
    • 100

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  • Block external dimension L(mm)

    • 40.4
    • 47.3
    • 57
    • 59.2
    • 66.2
    • 67.9
    • 77.6
    • 83
    • 96.8
    • 111

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  • Mounting hole for blocks

    • Drilled Hole
    • Tapped hole

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  • Number of block mounting holes(holes)

    • 2
    • 4

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  • Mounting Hole Dimension H(ø)

    • 4.5
    • 7
    • 9

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  • Mounting Hole Screw Depth(mm)

    • 7
    • 8
    • 9
    • 12
    • Through

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  • Block dimension L1(mm)

    • 22.9
    • 27.8
    • 35.2
    • 39.5
    • 40.4
    • 45.7
    • 46.7
    • 59
    • 69.3
    • 79

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  • Type

    • SR15SB
    • SR15TB
    • SR15V
    • SR15W
    • SR20SB
    • SR20TB
    • SR20V
    • SR20W
    • SR25SB
    • SR25TB
    • SR25V
    • SR25W
    • SR30SB
    • SR30SBM
    • SR30TB
    • SR30TBM
    • SR30V
    • SR30VM
    • SR30W
    • SR30WM
    • SR35SB
    • SR35SBM
    • SR35TB
    • SR35TBM
    • SR35V
    • SR35VM
    • SR35W
    • SR35WM

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  • Block Type

    • Standard
    • Wide
    • Wide Short

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    • 7 Days or Less

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