Airtac LRM series: miniature linear guide block - LRM12BK-N-H-A

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Description

Specifications: LRM12BK-N-H-A — miniature linear guide individual block, size 12, N form, H accuracy, pairing group A

Product Catalog

Download Airtac Product Catalog (PDF)

For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

Model Code Explained

Code Meaning
LRM miniature linear guide
12 Nominal size 12; actual rail width 12 mm
BK Individual block
N Standard-length block
H High accuracy
A Block pairing code; see rail/preload matching below

Technical Specifications

Parameter Details
Product One LRM12N block; rail ordered separately
Accuracy H — high
Block / rail pairing A; select a documented mating rail group
Rail group D medium preload
C100B (kN) 3.04
C0 (kN) 3.86
MR (N.m) 23.63
MP (N.m) 12.57
MY (N.m) 12.57
Catalog block weight 0.037 kg (37 g); excluding rail
Height H tolerance (mm) ±0.02
Height variation ΔH (mm) 0.015
Offset Y tolerance (mm) ±0.025
Offset variation ΔY (mm) 0.02

Features and Operation

  • The miniature rail and compact block are intended for compact precision linear motion. The catalog uses a stainless-steel rail and retained ball design.
  • The retained ball design assists handling, but rapid or angled removal can still cause ball loss.

External and Mounting Dimensions

Dimensions are in millimetres unless another unit is shown. Letter labels follow the catalog drawing; assembly height is not the height of the loose block.

Drawing / item Value
H — Assembly height 13 mm
H1 — Block underside clearance 3 mm
F — Block width 27 mm
Y — Lateral offset to rail datum 7.5 mm
C — Overall block length 37.6 mm
C1 — Block body length 21.7 mm
A — Longitudinal mounting-hole pitch 15 mm
B — Transverse mounting-hole pitch 20 mm
M — Block mounting hole / thread M3X0.5
N — Thread depth 4 mm
K — Drawing K 3 mm
J — Lubrication-hole callout 1.5 mm
G — Rail width 12 mm
H2 — Rail height 7.5 mm
P — Rail mounting-hole pitch 25 mm
Q — Rail counterbore diameter 6 mm
U — Rail through-hole diameter 3.5 mm
H3 — Rail counterbore depth 4.4 mm
T — Drawing T M4X0.7

For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

Compatible Parts and Assembly

  • Use with LRM12 rail of compatible accuracy and the specified rail/block pairing group. This listing is an individual block and does not include a rail.
  • Optional rail bolt-hole plug: L-BC-M3-10P, 10 plugs per bag, for LRM9/12/15. LRM9 needs the short-head bolt arrangement shown in the catalog.

Installation, Lubrication and Use

  • Standard-block lubrication reference: factory grease Synergy Grease PS NO.2; use the same product or an equivalent grade. Initial amount 0.34 cm³; replenishment 0.17 cm³.
  • For the standard grease-lubricated configuration, replenish every 100 km of travel or every 3–6 months, adjusted to actual use. Move the block to distribute grease and verify a grease film over the rail.
  • Wipe off storage anti-rust oil before applying the working lubricant. Do not mix incompatible greases or oils.
  • Install on a clean, accurate reference surface. Keep block datum marks aligned; tighten the rail while holding its datum edge against the machine reference.
  • Use the supplied plastic transport rail when transferring an individual block. Align it straight and support the dust seals; avoid angled insertion or rapid removal.
  • Avoid impact, dropping and contamination. Store horizontally, sealed and rust-protected, away from humidity and high temperatures.
  • The standard-series operating environment should not exceed 80°C; the catalog separately states a maximum temperature of 100°C. This is not a continuous 100°C operating rating.
  • Dynamic ratings C100B are referenced to a nominal travel distance of 100 km. The catalog life calculation uses L = [C100B / (fw × P)]³ × 100000 m; use the actual equivalent load and service factor, and check static safety separately.

Series Ordering Options

These are catalog options for this product family. Only the codes in the ordered model define the supplied configuration.

  • Match the rail series and size, block form and length, accuracy and rail/block group before ordering. A group letter is a manufacturing pairing code, not a standalone preload rating.
Product form

Specifications: LRM12BK-N-H-A — miniature linear guide individual block, size 12, N form, H accuracy, pairing group A Product Catalog Download... Read more

SKU: LRM12BK-N-H-A

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    Description

    Specifications: LRM12BK-N-H-A — miniature linear guide individual block, size 12, N form, H accuracy, pairing group A

    Product Catalog

    Download Airtac Product Catalog (PDF)

    For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

    Model Code Explained

    Code Meaning
    LRM miniature linear guide
    12 Nominal size 12; actual rail width 12 mm
    BK Individual block
    N Standard-length block
    H High accuracy
    A Block pairing code; see rail/preload matching below

    Technical Specifications

    Parameter Details
    Product One LRM12N block; rail ordered separately
    Accuracy H — high
    Block / rail pairing A; select a documented mating rail group
    Rail group D medium preload
    C100B (kN) 3.04
    C0 (kN) 3.86
    MR (N.m) 23.63
    MP (N.m) 12.57
    MY (N.m) 12.57
    Catalog block weight 0.037 kg (37 g); excluding rail
    Height H tolerance (mm) ±0.02
    Height variation ΔH (mm) 0.015
    Offset Y tolerance (mm) ±0.025
    Offset variation ΔY (mm) 0.02

    Features and Operation

    • The miniature rail and compact block are intended for compact precision linear motion. The catalog uses a stainless-steel rail and retained ball design.
    • The retained ball design assists handling, but rapid or angled removal can still cause ball loss.

    External and Mounting Dimensions

    Dimensions are in millimetres unless another unit is shown. Letter labels follow the catalog drawing; assembly height is not the height of the loose block.

    Drawing / item Value
    H — Assembly height 13 mm
    H1 — Block underside clearance 3 mm
    F — Block width 27 mm
    Y — Lateral offset to rail datum 7.5 mm
    C — Overall block length 37.6 mm
    C1 — Block body length 21.7 mm
    A — Longitudinal mounting-hole pitch 15 mm
    B — Transverse mounting-hole pitch 20 mm
    M — Block mounting hole / thread M3X0.5
    N — Thread depth 4 mm
    K — Drawing K 3 mm
    J — Lubrication-hole callout 1.5 mm
    G — Rail width 12 mm
    H2 — Rail height 7.5 mm
    P — Rail mounting-hole pitch 25 mm
    Q — Rail counterbore diameter 6 mm
    U — Rail through-hole diameter 3.5 mm
    H3 — Rail counterbore depth 4.4 mm
    T — Drawing T M4X0.7

    For detailed product dimensions and mounting drawings, please download and refer to the PDF catalog.

    Compatible Parts and Assembly

    • Use with LRM12 rail of compatible accuracy and the specified rail/block pairing group. This listing is an individual block and does not include a rail.
    • Optional rail bolt-hole plug: L-BC-M3-10P, 10 plugs per bag, for LRM9/12/15. LRM9 needs the short-head bolt arrangement shown in the catalog.

    Installation, Lubrication and Use

    • Standard-block lubrication reference: factory grease Synergy Grease PS NO.2; use the same product or an equivalent grade. Initial amount 0.34 cm³; replenishment 0.17 cm³.
    • For the standard grease-lubricated configuration, replenish every 100 km of travel or every 3–6 months, adjusted to actual use. Move the block to distribute grease and verify a grease film over the rail.
    • Wipe off storage anti-rust oil before applying the working lubricant. Do not mix incompatible greases or oils.
    • Install on a clean, accurate reference surface. Keep block datum marks aligned; tighten the rail while holding its datum edge against the machine reference.
    • Use the supplied plastic transport rail when transferring an individual block. Align it straight and support the dust seals; avoid angled insertion or rapid removal.
    • Avoid impact, dropping and contamination. Store horizontally, sealed and rust-protected, away from humidity and high temperatures.
    • The standard-series operating environment should not exceed 80°C; the catalog separately states a maximum temperature of 100°C. This is not a continuous 100°C operating rating.
    • Dynamic ratings C100B are referenced to a nominal travel distance of 100 km. The catalog life calculation uses L = [C100B / (fw × P)]³ × 100000 m; use the actual equivalent load and service factor, and check static safety separately.

    Series Ordering Options

    These are catalog options for this product family. Only the codes in the ordered model define the supplied configuration.

    • Match the rail series and size, block form and length, accuracy and rail/block group before ordering. A group letter is a manufacturing pairing code, not a standalone preload rating.

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