HSR. LM Guide Global Standard Size Model HSR. Point of Selection. Point of Design. Options. Model No. Precautions on Use

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1 LM Guide Global Standard Size Model Retainer plate Endplate End seal Grease nipple Ball Retainer plate Inner seal (Optional) Side seal LM rail Cross section Point of Selection A Point of Design Options Model No. Precautions on Use Accessories for Lubrication A Mounting Procedure and Maintenance B Equivalent moment factor A Rated Loads in All Directions A Equivalent factor in each direction A Radial Clearance A Accuracy Standards A Shoulder Height of the Mounting Base and the Corner Radius Permissible Error of the Mounting Surface Dimensions of Each Model with an Option Attached

2 Structure and Features Balls roll in four rows of raceways precision-ground on an LM rail and an, and endplates incorporated in the allow the balls to circulate. Since retainer plates hold the balls, they do not fall off even if the LM rail is pulled out (except models 8, 10 and 12). Each row of balls is placed at a contact angle of 45 so that the rated loads applied to the are uniform in the four directions (radial, reverse radial and lateral directions), enabling the LM Guide to be used in all orientations. In addition, the can receive a well-balanced preload, increasing the rigidity in the four directions while maintaining a constant, low friction coeffi cient. With the low sectional height and the high rigidity design of the, this model achieves highly accurate and stable straight motion. LM Guide 4-way Equal Load Each row of balls is placed at a contact angle of 45 so that the rated loads applied to the 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. High Rigidity Type Since balls are arranged in four rows in a well-balanced manner, a large preload can be applied and the rigidity in four directions can easily be increased. Self-adjustment Capability The self-adjustment capability through front-to-front configuration of THK s unique circular-arc grooves (DF set) enables a mounting error to be absorbed even under a preload, thus to achieve highly accurate, smooth straight motion. High Durability Even under a preload or excessive biased load, differential slip of balls does not occur. As a result, smooth motion, high wear resistance, and long-term maintenance of accuracy are achieved. Stainless Steel Type also Available A special type which, LM rail and balls are made of stainless steel is also available.

3 Types Model -A The flange of its has tapped holes. Specification Table Model -B The fl ange of the has through holes. Used in places where the table cannot have through holes for mounting bolts. Specification Table Model -R Having a smaller width (W) and tapped holes, this model is optimal for compact design. Specification Table

4 Model -YR When using two units of LM Guide facing each other, the previous model required much time in machining the table and had diffi culty achieving the desired accuracy and adjusting the clearance. Since model -YR has tapped holes on the side of the, a simpler structure is gained and reduced man-hour and increase in accuracy can be achieved. Specification Table LM Guide Fig.1 Conventional Structure Model -LA The has the same cross-sectional shape as model -A, but has a longer overall LM block length (L) and a greater rated load. Fig.2 Mounting Structure for Model -YR Specification Table Model -LB The has the same cross-sectional shape as model -B, but has a longer overall LM block length (L) and a greater rated load. Specification Table

5 Model -LR The has the same cross-sectional shape as model -R, but has a longer overall LM block length (L) and a greater rated load. Specification Table Model -CA Has six tapped holes on the. Specification Table Model -CB Specification Table The has six through holes. Used in places where the table cannot have through holes for mounting bolts.

6 Model -HA The has the same cross-sectional shape as model -CA, but has a longer overall LM block length (L) and a greater rated load. Specification Table LM Guide Model -HB The has the same cross sectional shape as model -CB, but has a longer overall LM block length (L) and a greater rated load. Specification Table Models 100/120/150 HA/HB/HR Large types of model that can be used in large-scale machine tools and building structures. Specification Table

7 Models -A and -AM, Models -LA and -LAM Models 15 to 35A/LA/AM/LAM Outer dimensions dimensions Models 45 to 85A/LA Model No. 15A 15AM 20A 20AM 20LA 20LAM 25A 25AM 25LA 25LAM 30A 30AM 30LA 30LAM 35A 35AM 35LA 35LAM 45A 45LA 55A 55LA 65A 65LA 85A 85LA Height Width Length Grease nipple M W L B C S L 1 t T T 1 K N E H M PB1021B M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-PT1/ M B-PT1/ M B-PT1/ M B-PT1/8 16 Model number coding 25 A 2 QZ UU C0 M +1200L P T M - Model number Type of No. of s used on the same rail Contamination With QZ protection Lubricator accessory symbol (*1) Stainless steel Radial clearance symbol (*2) Normal (No symbol) Light preload (C1) Medium preload (C0) LM rail length Stainless steel Symbol for LM rail (in mm) No. of rails used Symbol for LM rail on the same jointed use plane (*4) Accuracy symbol (*3) Normal grade (No Symbol)/High accuracy grade (H) Precision grade (P)/Super precision grade (SP) Ultra precision grade (UP) (*1) See contamination protection accessory on. (*2) See A. (*3) See A. (*4) See A. Note) This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.) Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK.

8 E L L1 C φ d2 N M1 h φ d1 F LM Guide Unit: mm LM rail dimensions Basic load rating Static permissible moment kn-m Mass M A M B M C LM LM Width Height Pitch Length C C 0 block rail W W 2 M 1 F d 1 d 2 h Max kn kn 1 block (1240) (1480) (1480) (2020) (2020) Note) Symbol M indicates that stainless steel is used in the, LM rail and balls. Those models marked with this symbol are therefore highly resistant to corrosion and environment. The maximum length under Length indicates the standard maximum length of an LM rail. (See.) Static permissible moment : 1 block: static permissible moment value with 1 Double blocks: static permissible moment value with 2 blocks closely contacting with each other kg kg/m Options

9 Models -B, -BM, -LB and -LBM 4-φ H W B M t T T1 K H3 W2 W1 Outer dimensions dimensions Model No. Height Width Length Grease nipple 15B 15BM 20B 20BM 20LB 20LBM 25B 25BM 25LB 25LBM 30B 30BM 30LB 30LBM 35B 35BM 35LB 35LBM 45B 45LB 55B 55LB 65B 65LB 85B 85LB M W L B C H L 1 t T T 1 K N E H PB1021B B-M6F B-M6F B-M6F B-M6F B-M6F B-M6F B-M6F B-M6F B-PT1/ B-PT1/ B-PT1/ B-PT1/8 16 Model number coding 25 B 2 QZ UU C0 M +1200L P T M - Model number Type of No. of s used on the same rail With QZ Contamination protection Lubricator accessory symbol (*1) Stainless steel Radial clearance symbol (*2) Normal (No symbol) Light preload (C1) Medium preload (C0) LM rail length (in mm) Stainless steel LM rail Symbol for LM rail jointed use Symbol for No. of rails used on the same plane (*4) Accuracy symbol (*3) Normal grade (No Symbol)/High accuracy grade (H) Precision grade (P)/Super precision grade (SP) Ultra precision grade (UP) (*1) See contamination protection accessory on. (*2) See A. (*3) See A. (*4) See A. Note) This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.) Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK.

10 E L L1 C φ d2 N M1 h φ d1 F Unit: mm LM rail dimensions Basic load rating Static permissible moment kn-m Mass M A M B M C LM LM Width Height Pitch Length C C 0 block rail W W 2 M 1 F d 1 d 2 h Max kn kn 1 block (1240) (1480) (1480) (2020) (2020) Note) Symbol M indicates that stainless steel is used in the, LM rail and balls. Those models marked with this symbol are therefore highly resistant to corrosion and environment. The maximum length under Length indicates the standard maximum length of an LM rail. (See.) Static permissible moment : 1 block: static permissible moment value with 1 Double blocks: static permissible moment value with 2 blocks closely contacting with each other kg kg/m LM Guide Options

11 Model -RM W L 4-S l B L1 φ d N φ d2 C M K H3 M1 h φ d1 W2 W1 F Models 8RM and 10RM Outer dimensions dimensions Model No. Height Width Length Greasing hole Grease nipple M W L B C S l L 1 T K N E d H 3 8RM M RM M RM M PB Model number coding 12 R 2 UU C1 M +670L H T M - Model number Type of No. of s used on the same rail Contamination protection accessory symbol (*1) Stainless steel Radial clearance symbol (*2) Normal (No symbol) Light preload (C1) LM rail length (in mm) Stainless steel LM rail Symbol for LM rail jointed use Symbol for No. of rails used on the same plane (*4) Accuracy symbol (*3) Normal grade (No Symbol)/High accuracy grade (H) Precision grade (P)/Super precision grade (SP) (*1) See contamination protection accessory on. (*2) See A. (*3) See A. (*4) See A. Note) This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.)

12 4-S l W B E L L1 M T K H3 M1 h φ d2 N C LM Guide φ d1 W2 W1 F Model 12RM LM rail dimensions Basic load rating Static permissible moment kn-m Mass Width Height Pitch Length C C 0 W W 2 M 1 F d 1 d 2 h Max kn kn M A M B M C 1 block Double blocks 1 block LM block Unit: mm (975) (995) (1240) Note) Since stainless steel is used in the, LM rail and balls, these models are highly resistant to corrosion and environment. The maximum length under Length indicates the standard maximum length of an LM rail. (See.) Static permissible moment : 1 block: static permissible moment value with 1 Double blocks: static permissible moment value with 2 blocks closely contacting with each other kg LM rail kg/m Options

13 Models -R, -RM, -LR and -LRM 4-S l W B T M K H3 W2 W1 Outer dimensions dimensions Model No. Height Width Length Grease nipple 15R 15RM 20R 20RM 20LR 20LRM 25R 25RM 25LR 25LRM 30R 30RM 30LR 30LRM 35R 35RM 35LR 35LRM 45R 45LR 55R 55LR 65R 65LR 85R 85LR M W L B C S l L 1 T K N E H M PB1021B M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-PT1/ M B-PT1/ M B-PT1/ M B-PT1/8 16 Model number coding 35 R 2 QZ SS C0 M +1400L P T M - Model number Type of With QZ Lubricator No. of s used on the same rail Contamination protection accessory symbol (*1) Stainless steel Radial clearance symbol (*2) Normal (No symbol) Light preload (C1) Medium preload (C0) LM rail length (in mm) Stainless steel LM rail Symbol for LM rail jointed use Symbol for No. of rails used on the same plane (*4) Accuracy symbol (*3) Normal grade (No Symbol)/High accuracy grade (H) Precision grade (P)/Super precision grade (SP) Ultra precision grade (UP) (*1) See contamination protection accessory on. (*2) See A. (*3) See A. (*4) See A. Note) This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.) Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK.

14 E L L1 C φ d2 N M1 h φ d1 F Unit: mm LM rail dimensions Basic load rating Static permissible moment kn-m Mass M A M B M C LM LM Width Height Pitch Length C C 0 block rail W W 2 M 1 F d 1 d 2 h Max kn kn 1 block (1240) (1480) (1480) (2020) (2020) Note) Symbol M indicates that stainless steel is used in the, LM rail and balls. Those models marked with this symbol are therefore highly resistant to corrosion and environment. The maximum length under Length indicates the standard maximum length of an LM rail. (See.) Static permissible moment : 1 block: static permissible moment value with 1 Double blocks: static permissible moment value with 2 blocks closely contacting with each other kg kg/m LM Guide Options

15 Models -YR and -YRM 4-S l W B1 M B K H3 W1 W2 Outer dimensions dimensions Model No. Height Width Length Grease nipple M W L B 1 B C S l L 1 K N E H 3 15YR 15YRM 20YR 20YRM 25YR 25YRM 30YR 30YRM 35YR 35YRM M PB1021B M B-M6F M B-M6F M B-M6F M B-M6F YR M B-PT1/ YR M B-PT1/ YR M B-PT1/8 14 Model number coding 25 YR 2 UU C0 M +1200L P T M - Model number Type of No. of s used on the same rail Contamination protection accessory symbol (*1) Stainless steel Radial clearance symbol (*2) Normal (No symbol) Light preload (C1) Medium preload (C0) LM rail length (in mm) Stainless steel LM rail Symbol for LM rail jointed use Symbol for No. of rails used on the same plane (*4) Accuracy symbol (*3) Normal grade (No Symbol)/High accuracy grade (H) Precision grade (P)/Super precision grade (SP) Ultra precision grade (UP) (*1) See contamination protection accessory on. (*2) See A. (*3) See A. (*4) See A. Note) This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.)

16 E L L1 C φ d2 N M1 h LM Guide φ d1 F LM rail dimensions Basic load rating Static permissible moment kn-m Mass Unit: mm Width Height Pitch Length C C 0 M A M B M C LM block LM rail W W 2 M 1 F d 1 d 2 h Max kn kn (1240) (1480) (2020) 1 block kg kg/m Note) Symbol M indicates that stainless steel is used in the, LM rail and balls. Those models marked with this symbol are therefore highly resistant to corrosion and environment. The maximum length under Length indicates the standard maximum length of an LM rail. (See.) Static permissible moment : 1 block: static permissible moment value with 1 Double blocks: static permissible moment value with 2 blocks closely contacting with each other Options

17 Models -CA, -CAM, -HA and -HAM 6-S W B 6-S W B T T1 M K M T1 T t K H3 H3 W2 W1 W2 W1 Models 20 to 35CA/HA/CAM/HAM Outer dimensions dimensions Models 45 to 85CA/HA Model No. Height Width Length Grease nipple 20CA 20CAM 20HA 20HAM 25CA 25CAM 25HA 25HAM 30CA 30CAM 30HA 30HAM 35CA 35CAM 35HA 35HAM 45CA 45HA 55CA 55HA 65CA 65HA 85CA 85HA M W L B C S L 1 t T T 1 K N E H M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-M6F M B-PT1/ M B-PT1/ M B-PT1/ M B-PT1/8 16 Model number coding 25 HA 2 QZ KKHH C0 M +1300L P T M - Model number Type of No. of s used on the same rail With QZ Lubricator Contamination protection accessory symbol (*1) Radial clearance symbol (*2) Normal (No symbol) Light preload (C1) Medium preload (C0) Stainless steel LM rail length (in mm) Accuracy symbol (*3) Normal grade (No Symbol) High accuracy grade (H) Precision grade (P) Super precision grade (SP) Ultra precision grade (UP) Stainless steel LM rail Symbol for LM rail jointed use Symbol for No. of rails used on the same plane (*4) (*1) See contamination protection accessory on. (*2) See A. (*3) See A. (*4) See A. Note) This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.) Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK.

18 E L L1 C φ d2 N M1 h φ d1 F LM Guide Unit: mm LM rail dimensions Basic load rating Static permissible moment kn-m Mass M A M B M C LM LM Width Height Pitch Length C C 0 block rail W W 2 M 1 F d 1 d 2 h Max kn kn 1 block (1480) (1480) (2020) (2020) Note) Symbol M indicates that stainless steel is used in the, LM rail and balls. Those models marked with this symbol are therefore highly resistant to corrosion and environment. The maximum length under Length indicates the standard maximum length of an LM rail. (See.) Static permissible moment : 1 block: static permissible moment value with 1 Double blocks: static permissible moment value with 2 blocks closely contacting with each other kg kg/m Options

19 Models -CB, -CBM, -HB and -HBM 6-φ H W B M t T T1 K H3 W2 W1 Outer dimensions dimensions Model No. Height Width Length Grease nipple 20CB 20CBM 20HB 20HBM 25CB 25CBM 25HB 25HBM 30CB 30CBM 30HB 30HBM 35CB 35CBM 35HB 35HBM 45CB 45HB 55CB 55HB 65CB 65HB 85CB 85HB M W L B C H L 1 t T T 1 K N E H B-M6F B-M6F B-M6F B-M6F B-M6F B-M6F B-M6F B-M6F B-PT1/ B-PT1/ B-PT1/ B-PT1/8 16 Model number coding 35 CB 2 QZ ZZHH C0 M +1400L P T M - Model number Type of No. of s used on the same rail With QZ Lubricator Contamination protection accessory symbol (*1) Radial clearance symbol (*2) Normal (No symbol) Light preload (C1) Medium preload (C0) Stainless steel LM rail length (in mm) Accuracy symbol (*3) Normal grade (No Symbol) High accuracy grade (H) Precision grade (P) Super precision grade (SP) Ultra precision grade (UP) Stainless steel LM rail Symbol for LM rail jointed use Symbol for No. of rails used on the same plane (*4) (*1) See contamination protection accessory on. (*2) See A. (*3) See A. (*4) See A. Note) This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.) Those models equipped with QZ Lubricator cannot have a grease nipple. When desiring a grease nipple for a model attached with QZ, contact THK.

20 E L L1 C φ d2 N M1 h φ d1 F Unit: mm LM rail dimensions Basic load rating Static permissible moment kn-m Mass M A M B M C LM LM Width Height Pitch Length C C 0 block rail W W 2 M 1 F d 1 d 2 h Max kn kn 1 block (1480) (1480) (2020) (2020) Note) Symbol M indicates that stainless steel is used in the, LM rail and balls. Those models marked with this symbol are therefore highly resistant to corrosion and environment. The maximum length under Length indicates the standard maximum length of an LM rail. (See.) Static permissible moment : 1 block: static permissible moment value with 1 Double blocks: static permissible moment value with 2 blocks closely contacting with each other kg kg/m LM Guide Options

21 Models -HA, -HB and -HR 9-S W B 9-φ H W B M T1 T K M T1 T K H3 H3 W2 W1 W2 W1 Models 100 to 150HA Models 100 to 150HB Outer dimensions dimensions Model No. Height Width Length Grease nipple 100HA 100HB 100HR 120HA 120HB 120HR 150HA 150HB 150HR Model number coding M W L B C H S l L 1 T T 1 K N E H Note) indicates a through hole M18 M18 27 M20 M20 30 M24 M HR 2 UU C L H T - Model number Type of No. of s used on the same rail Contamination protection accessory symbol (*1) LM rail length (in mm) Radial clearance symbol (*2) Normal (No symbol) Light preload (C1) Medium preload (C0) Symbol for LM rail jointed use B-PT1/ B-PT1/ B-PT1/4 22 Symbol for No. of rails used on the same plane (*4) Accuracy symbol (*3) Normal grade (No Symbol)/High accuracy grade (H) Precision grade (P)/Super precision grade (SP) Ultra precision grade (UP) (*1) See contamination protection accessory on. (*2) See A. (*3) See A. (*4) See A. Note) This model number indicates that a single-rail unit constitutes one set. (i.e., required number of sets when 2 rails are used in parallel is 2 at a minimum.)

22 E L 6-S l W B L1 C M T W2 W1 K H3 M1 h φ d2 N φ d1 F LM Guide Models 100 to 150HR LM rail dimensions Basic load rating Static permissible moment kn-m Mass Unit: mm Width Height Pitch Length C C 0 M A M B M C LM block LM rail W W 2 M 1 F d 1 d 2 h Max kn kn block Note) The maximum length under Length indicates the standard maximum length of an LM rail. (See.) Static permissible moment : 1 block: static permissible moment value with 1 Double blocks: static permissible moment value with 2 blocks closely contacting with each other kg kg/m Options

23 Standard Length and Maximum Length of the LM Rail Table1 shows the standard lengths and the maximum lengths of model variations. If the maximum length of the desired LM rail exceeds them, jointed rails will be used. Contact THK for details. For the G dimension when a special length is required, we recommend selecting the corresponding G value from the table. The longer the G dimension is, the less stable the G area may become after installation, thus causing an adverse impact to accuracy. G F F G L0 Table1 Standard Length and Maximum Length of the LM Rail for Model Unit: mm Model No LM rail standard length (L O ) Standard pitch F G Max length (975) (995) (1240) (1240) (1480) (2020) Note1) The maximum length varies with accuracy grades. Contact THK for details. Note2) If jointed rails are not allowed and a greater length than the maximum values above is required, contact THK. Note3) The figures in the parentheses indicate the maximum lengths of stainless steel made models.

24 Tapped-hole LM Rail Type of Model model rails also include a type where the LM rail is tapped from the bottom. This type is useful when mounting from the bottom of the base and when increased contamination protection is desired. LM Guide Clearance l 1 S1 F (1) Determine the bolt length so that a clearance of 2 to 5 mm is secured between the bolt end and the bottom of the tap (effective tap depth). (See figure above.) (2) A tapped-hole LM rail type is available also for model -YR. (3) For standard pitches of the taps, see Table1 on. Table2 Dimensions of the LM Rail Tap Unit: mm Model No. S 1 Effective tap depth l 1 15 M M M M M M M M20 30 Model number coding 30A2UU +1000LH K Symbol for tapped-hole LM rail type

25 Prevention of from falling off of LM rail In miniature model, the balls fall out if the comes off the LM rail. For this reason, LM Guide assemblies are delivered with a part which prevents the from coming off the rail. If you remove this part when using the product, please take precautions to avoid overrunning the blocks off of the rail. Greasing Hole Semi-standard Greasing Hole for Model For model, a semi-standard greasing hole is available. Specify the appropriate model number according to the application. Greasing hole Greasing hole Type with a Greasing Hole Drilled on the Side Surface Type with a Greasing Hole Drilled on the Top Face

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