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

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1 Caged Ball LM Guide Global Standard Size Model LM block LM rail Endplate End seal 45 Ball Ball cage Cross section 45 * For the Ball Cage, see. Point of Selection Point of Design Options Model No. Precautions on Use Accessories for Lubrication Mounting Procedure and Maintenance B Equivalent moment factor Rated Loads in All Directions Equivalent factor in each direction Radial Clearance Accuracy Standards 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 LM block, and ball cages and endplates incorporated in the LM block allow the balls to circulate. Each row of balls is placed at a contact angle of 45 so that the rated loads 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. In addition, the LM block 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 LM block, 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 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. 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. Global Standard Size is designed to have dimensions almost the same as that of Full Ball LM Guide model HSR, which THK as a pioneer of the linear motion system has developed and is practically a global standard size. Low Center of Gravity, High Rigidity As a result of downsizing the LM rail section, the center of gravity is lowered and the rigidity is increased.

3 Types and Features Model -C The flange of the LM block has tapped holes. Can be mounted from the top or the bottom. Used in places where the table cannot have through holes for mounting bolts. Specification Table Model -V With this type, the LM block has a smaller width (W) and tapped holes. Used in places where the space for table width is limited. Specification Table Model -R The LM block has a smaller width (W) and the mounting holes are tapped. It succeeds the height dimension of full-ball type LM Guide HSR-R. Specification Table

4 Model -LC The LM block has the same cross-sectional shape as model -C, but has a longer overall LM block length (L) and a greater rated load. Specification Table LM Guide Model -LV The LM block has the same cross-sectional shape as model -V, but has a longer overall LM block length (L) and a greater rated load. Specification Table Model -LR The LM block 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

5 Models -C and -LC 4-S (φ H through) W B T1 T M K H3 W2 W1 Outer dimensions LM block dimensions Pilot hole for side nipple Model No. Height Width Length Grease nipple M W L B C S H L 1 T T 1 K N E e 0 f 0 D 0 15C 15LC 20C 20LC 25C 25LC 30C 30LC 35C 35LC 45C 45LC 55C 55LC 65C 65LC M PB1021B M B-M6F M B-M6F M B-M6F M B-M6F M B-PT1/ M B-PT1/ M B-PT1/ Model number coding 25 LC 2 QZ KKHH C L P Z T - Model number Type of LM block With QZ Lubricator No. of LM blocks 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) With steel tape 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. ( * 3) See. ( * 4) See. 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.

6 E L L1 e0 4-φ D0 C M1 h φ d2 N f0 LM Guide φ d1 F Unit: mm LM rail dimensions Basic load rating Static permissible moment kn-m Mass Width Height Pitch Length C C 0 M A M B M C LM block LM rail H 3 W W 2 M 1 F d 1 d 2 h Max kn kn 1 Double block blocks 1 Double block blocks 1 block kg Note) Pilot holes for side nipples are not drilled through in order to prevent foreign material from entering the product. THK will mount grease nipples per your request. Therefore, do not use the side nipple pilot holes for purposes other than mounting a grease nipple. 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 LM block Double blocks: static permissible moment value with 2 blocks closely contacting with each other kg/m Options

7 Models -V and -LV 4-S l W B T M K H3 W2 W1 Outer dimensions LM block dimensions Pilot hole for side nipple Height Width Length Model No. Grease nipple M W L B C S l L 1 T K N E e 0 f 0 D 0 15V 15LV 20V 20LV 25V 25LV 30V 30LV 35V 35LV 45V 45LV 55V 55LV 65V 65LV M PB1021B M B-M6F M B-M6F M B-M6F M B-M6F M B-PT1/ M B-PT1/ M B-PT1/ Model number coding 30 V 2 QZ KKHH C L P Z T - Model number Type of LM block With QZ Lubricator No. of LM blocks 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) With steel tape 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. ( * 3) See. ( * 4) See. 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 4-φ D0 L1 e0 C f0 M1 h φ d2 N 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 H 3 W W 2 M 1 F d 1 d 2 h Max kn kn 1 Double block blocks 1 Double block blocks 1 block kg Note) Pilot holes for side nipples are not drilled through in order to prevent foreign material from entering the product. THK will mount grease nipples per your request. Therefore, do not use the side nipple pilot holes for purposes other than mounting a grease nipple. 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 LM block Double blocks: static permissible moment value with 2 blocks closely contacting with each other kg/m Options

9 Models -R and -LR W 4-S l B T M K H3 W2 W1 Outer dimensions LM block dimensions Pilot hole for side nipple Model No. Height Width Length Grease nipple M W L B C S l L 1 T K N E e 0 f 0 D 0 15R M PB1021B R 25LR M B-M6F R 30LR M B-M6F R 35LR M B-M6F R 45LR M B-PT1/ R 55LR M B-PT1/ Model number coding 45 LR 2 QZ KKHH C L P T - Model number Type of LM block With QZ Lubricator No. of LM blocks 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 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. (*3) See. (*4) See. 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 4-φ D L1 e0 C M h φ d N f0 LM Guide φ d 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 H 3 W W 2 M 1 F d 1 d 2 h Max kn kn 1 Double block blocks 1 Double block blocks 1 block kg kg/m Note) Pilot holes for side nipples are not drilled through in order to prevent foreign material from entering the product. THK will mount grease nipples per your request. Therefore, do not use the side nipple pilot holes for purposes other than mounting a grease nipple. 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 LM block Double blocks: static permissible moment value with 2 blocks closely contacting with each other Options

11 Standard Length and Maximum Length of the LM Rail Table1 shows the standard and maximum lengths of the model rail. If a rail length longer than the listed max length is required, rails may be jointed to meet the overall length. Contact THK for details. For special rail lengths, it is recommended to use a value corresponding to the G dimension from the table. As the G dimension increases, this portion becomes less stable and the accuracy performance is severely impacted. G F L0 G Table1 Standard Length and Maximum Length of the LM Rail for Model Unit: mm Model No LM rail standard length (L 0 ) Standard pitch F G Max length 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.

12 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. l1 S1 F Clearance LM Guide (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) 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 35 LC2UU +1000LH K Symbol for tapped-hole LM rail type

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