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The single-block structure delivers higher rigidity for X-Y tables, including assemblies using an inner 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design feature enables an orthogonal LM system in Model SCR?","Question",{"text":62,"@type":63},"Two rails intersecting at right angles are integrated back-to-back into a single block, allowing an orthogonal LM system to be achieved with the model alone.","Answer",{"name":65,"@type":60,"acceptedAnswer":66},"How does the 4-way equal load design work?",{"text":67,"@type":63},"Balls are placed at a 45° contact angle so the load ratings applied to the LM block are uniform in four directions: radial, reverse-radial, and lateral.",{"name":69,"@type":60,"acceptedAnswer":70},"Why is Model SCR suitable for applications requiring high rigidity?",{"text":71,"@type":63},"The single integrated LM block has higher rigidity than two conventional back-to-back LM blocks secured with bolts, helping achieve smooth straight motion even with preload and supporting high-rigidity X-Y table 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A1-482 |\n| --- | --- |\n| Options | A1-507 |\n| Model No. | A1-577 |\n| Handling Precautions | A1-583 |\n| Accessories for Lubrication | A24-1 |\n|  Mounting Procedure | B1-89 |\n| Equivalent Moment Factor | A1-43 |\n| Rated Loads in All Directions | A1-61 |\n| Equivalent Factor in Each Direction | A1-63 |\n| Radial Clearance | A1-73 |\n| Accuracy Standards | A1-82 |\n| Shoulder Height of the Mounting Base and the Corner Radius | A1-492 |\n| Reference Error Tolerance for the Mounting Surface | A1-498 |\n| Dimensions of Each Model with Options Attached | A1-521 |\n\nSelection Criteria A1-10  \nA1-166   \n515-1E  \nSCR  \nStructure and Features  \nBalls roll in four rows of raceways precision-ground on an LM rail and an LM block, and ball cagesand end plates incorporated in the LM block allow the balls to circulate.  \nThis LM Guide has two rails intersecting at right angles integrated back-to-back into a single block with the same internal structure as the proven Caged Ball LM Guide Model SHS. Because an orthogonal LM System can be achieved with the Model SCR alone, conventional saddles are no longer necessary, enabling simplified X-Y motion and compact structure.  \n4-Way Equal Load  \nEach row of balls is placed at a contact angle of 45° so that the load ratings applied to the LM block are uniform in the four directions (radial, reverse-radial, and lateral directions), enabling the LM Guide to be used in all orientations and in extensive applications.  \nHigh Rigidity  \nSince the balls are well balanced in four rows, this model is able to withstand moments, and it achieves smooth straight motion even when a preload is applied to increase the rigidity.  \nThe rigidity of the single LM block is higher than that of a combination of two conventional LM blocks secured back-to-back with bolts, making this model optimal for building an X-Y table that requires high rigidity.  \n A1-167  \nLM Guide  \n515-1E  \nModel SCR Dimensional Table⇒A1-170  \nThis model is the standard type.  \nExample of Using an Inner Saddle  \nModel SCR can easily be assembled and adjusted by using an inner saddle to link four LM blocks together. When installed on an inner saddle, model SCR achieves a highly accurate X-Y guide and high rigidity moment in the yawing direction  (as indicated by the arrow in the figure) .  \nInner saddle  \nA1-168   \n515-1E  \nSCR  \nLM Guide  \n A1-169  \n515-1E  \nModel SCR  \nFC1  \nW2  \n\n| Model No. | Outer dimensions |  |  | LM block dimensions |  |  |  |  |  |  |  |  |  |  |\n| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |\n|  | Height\u003Cbr>M | Width\u003Cbr>W | Length1\u003Cbr>L | B1 | B3 | B4 | B | C | C1 | S×ℓ | L2 | H3 | N | E |\n| SCR 15S | 47 | 48 | 64.4 | — | 11.3 | 34.8 | — | 20 | 14 | 2×2-M4×6 | 33.4 | 3 | 18.5 | 5.5 |\n| SCR 20S | 57 | 59 | 79 | — | 13 | 42.5 | — | 30 | 14.5 | 2×2-M5×8 | 43 | 4.6 | 23.5 | 12 |\n| SCR 20 | 57 | 78 | 98 | 13 | 7.5 | 37 | 24 | 56 | 11 | 2×5-M5×8 | 43 | 4.6 | 23.5 | 12 |\n| SCR 25 | 70 | 88 | 109 | 18 | 9 | 44 | 26 | 64 | 12 | 2×5-M6×10 | 47.4 | 5.8 | 28.5 | 12 |\n| SCR 30 | 82 | 105 | 131 | 21 | 12 | 53 | 32 | 76 | 14.5 | 2×5-M6×10 | 58 | 7 | 34 | 12 |\n| SCR 35 | 95 | 123 | 152 | 24 | 14 | 61 | 37 | 90 | 16.5 | 2×5-M8×14 | 68 | 7.5 | 40 | 12 |\n| SCR 45 | 118 | 140 | 174 | 30 | 16.5 | 75 | 45 | 110 | 15 | 2×5-M10×15 | 84.6 | 8.9 | 49.5 | 16 |\n| SCR 65 | 180 | 226 | 272 | 40 | 27.5 | 116 | 76 | 180 | 23 | 2×5-M14×22 | 123 | 19 | 71 | 16 |\n\nModel number coding  \n4 SCR25 QZ KKHH C0 +1240/1000L P  \n\n| \u003Cbr>Model number | \u003Cbr>Contamination protection accessory symbol | \u003Cbr>LM rail length\u003Cbr>on the X axis (in mm) | \u003Cbr>LM rail length\u003Cbr>on the Y axis (in mm) |\n| --- | --- | --- | --- |\n\nTotal No. of LM blocks  \nWith QZ Lubricator  \nRadial clearance symbol  \nNormal (No symbol)/Light preload (C1) Medium preload (C0)  \nAccuracy symbol Precision grade (P)  \nSuper precision grade (SP)  \nUltra precis","cbCaidEmUoat8zBC","https://ap.wps.com/l/cbCaidEmUoat8zBC","pdf",349976,"English","# Structure and Features\n## 4-Way Equal Load\n## High Rigidity\n## Example of Using an Inner Saddle\n## Dimensional Table (Unit: mm)","[{\"question\":\"What design feature enables an orthogonal LM system in Model SCR?\",\"answer\":\"Two rails intersecting at right angles are integrated back-to-back into a single block, allowing an orthogonal LM system to be achieved with the model alone.\"},{\"question\":\"How does the 4-way equal load design work?\",\"answer\":\"Balls are placed at a 45° contact angle so the load ratings applied to the LM block are uniform in four directions: radial, reverse-radial, and lateral.\"},{\"question\":\"Why is Model SCR suitable for applications requiring high rigidity?\",\"answer\":\"The single integrated LM block has higher rigidity than two conventional back-to-back LM blocks secured with bolts, helping achieve smooth straight motion even with preload and supporting high-rigidity X-Y table building.\"}]","Caged Ball Cross LM Guide Model SCR - Structure and Features | PDF"]