Model

MGN12H

Block Type

H (Long/Extended Type) - offers higher rigidity, load capacity, and better moment load resistance than the 'C' (Standard) type.

Compatible Rail Width

12mm (designed to run on MGN12 linear guide rails)

Block Width (W)

Approximately 27mm

Block Length (L)

Approximately 45.4mm

Block Thickness (B)

Approximately 20mm (bottom mounting surface width)

Overall Height (H)

Approximately 13mm (block height from top to bottom)

Overall Height (with Rail)

Approximately 18mm - 21mm (when mounted on a standard MGN12 rail)

Material

Bearing Steel (common for block body, recirculating balls, and raceways) <br> Stainless Steel (often available for improved corrosion resistance, e.g., SUS440C)

Internal Design

Utilizes precision steel balls in a circulating system. Features a ball retainer/holder to prevent balls from falling out when the block is removed from the rail, simplifying handling.

Load Bearing

4-point Gothic arch contact design, enabling it to bear balanced loads from all directions (radial, reverse radial, and lateral). This design contributes to high rigidity and accuracy.

Dynamic Load Rating (C)

Typically 3.72 kN - 3.8 kN (Approx. 380 kgf)

Static Load Rating (C0)

Typically 5.88 kN - 6 kN (Approx. 600 kgf)

Lubrication

Includes a grease fitting/nipple for easy lubrication. Proper lubrication is crucial for smooth movement, low friction, and extending the lifespan of the block and rail.

Precision Grade

Available in various precision grades (e.g., C - Normal, H - High, P - Precision). Chinese manufacturers commonly offer C or H grades.

Interchangeability

Often designed for interchangeability, meaning blocks and rails can be replaced separately (within a certain precision tolerance), which is convenient for maintenance or assembly.

Movement Characteristics

Ensures smooth, precise, and quiet linear movement with low friction.

Weight

Approximately 50g - 65g (varies slightly by manufacturer and material)

Mounting Holes

Typically has threaded M3 holes on the top surface for mounting carriages or fixtures. Hole spacing (PCD) is usually 20mm.