LSH Series Standard Linear Guide
Product Overview
The LSH series is a standard linear guide designed for high rigidity and precision, featuring a four-row circular arc groove structure.
- Equal Load Capacity: 45-degree contact angle design provides equal rated loads in radial, reverse radial, and lateral directions.
- Self-Aligning: The DF (Face-to-Face) configuration absorbs installation errors, ensuring smooth motion even with slight misalignment.
- Interchangeability: High manufacturing precision allows blocks and rails of the same accuracy grade to be interchangeable.
- Range: Available widths: 15, 20, 25, 30, 35, 45 mm.
- Options: Square (H) and Flange (F) blocks; Standard (N) and Long (L) lengths.
1. Standard Assembled Set (Single Rail)
Example: LSH 15 H N 1 220 S20 A H - AM6 - B - T - DD
| No. | Item | Options / Description |
|---|---|---|
| 1 | Series | LSH: Standard Linear Guide |
| 2 | Surface |
Blank: Natural (Standard) BB: Black Chrome Plating |
| 3 | Width | 15, 20, 25, 30, 35, 45 |
| 4 | Block Type |
H: Square F1: Flange (Upper Lock) F2: Flange (Lower Lock) F3: Flange (Up/Low Lock) |
| 5 | Block Length |
N: Standard L: Long (Size 15 has no L type) |
| 6 | Block Qty | 1, 2...: Number of blocks per rail |
| 7 | Rail Length | Length in mm (e.g., 220) |
| 8 | Hole Pitch (E) |
S: Standard (Symmetrical ends) Value: Custom end distance (e.g., 20) |
| 9 | Preload |
A: No Preload B: Light C: Medium D: Heavy |
| 10 | Accuracy | N: Normal H: High P: Precision |
| 11 | Grease | See Tab 4 (e.g., M4, M6) |
| 12 | Packaging | Blank: Assembled B: Separate |
| 13 | Rail Lock | Blank: Upper T: Lower |
| 14 | Dust Proof | Blank: Std DD: Double Seal ZZ: Scraper+Metal |
2. Jointed Rail (Long Length)
Example: LSH 15 H N 1 X 3920 T 3900 - A H ...
Used when rail length exceeds max standard length (~4000mm).
| Position | Code | Description |
|---|---|---|
| No. 7 | 1X3920 | 1st Rail Segment Length (e.g., 3920mm) |
| No. 8 | T | Joint Mark |
| No. 9 | 3900 | 2nd Rail Segment Length |
| ... | ... | (Continue as needed for 3rd segment, etc.) |
Individual Component Ordering
1. Block Only (BK)
LSH 15 BK-H N - H - D - AM6 - DD
| Item | Options |
|---|---|
| Model | LSH + Width + BK |
| Surface | -Blank: Natural, -H: Black Chrome |
| Type/Shape | N (Std)/L (Long) + H (Square)/F1/F2/F3 (Flange) |
| Accuracy | N, H, P |
| Assembly Code | D, E, SB... (Must match Accuracy/Preload, see table below) |
2. Rail Only (RL)
LSH 15 RL X 4000 - H - D - T
| Item | Options |
|---|---|
| Model | LSH + Width + RL |
| Joint | X: Jointed, Blank: Single |
| Length | Rail Length (mm) |
| Accuracy | N, H, P |
| Assembly Code | D, E... (See table below) |
| Mounting | Blank: Upper, T: Lower |
3. Assembly Code Matching Table (Critical!)
When ordering blocks and rails separately, use this code to ensure the correct fit (Preload/Accuracy match).
| Accuracy | Preload Class | |||
|---|---|---|---|---|
| No Preload (A) | Light (B) | Medium (C) | Heavy (D) | |
| Normal (N) | D | D | SB | - |
| High (H) | E | C | SA |
SF (Sizes 15-30) SG (Sizes 35-45) |
| Precision (P) | - | E | SC | SF |
Grease Fittings & Accessories
| Applicable Model | Code | Description |
|---|---|---|
| LSH 15 | M4 | Straight Nipple (M4 Thread) |
| AM6 | Adapter: M4 male to M6 female (Straight) | |
| LM6 | Adapter: M4 male to M6 female (L-Shape) | |
| - | Note: LSH15 uses smaller M4 port. | |
| LSH 20 LSH 25 LSH 30 LSH 35 |
M6 | Straight Nipple (M6 Thread) |
| SM6 | Straight Nipple (Short type) | |
| A01 | Adapter: M6 to PT1/8 (Straight) | |
| AM8 | Adapter: M6 to M8 (Straight) | |
| L01 | Adapter: M6 to PT1/8 (L-Shape) | |
| LM8 | Adapter: M6 to M8 (L-Shape) | |
| LSH 45 | P01 | Straight Nipple (PT1/8 Thread) |
| SP01 | Straight Nipple (PT1/8 Short) |
Technical Specifications
1. Accuracy Standards (mm)
| Item | Normal (N) | High (H) | Precision (P) |
|---|---|---|---|
| Height H Tolerance | ±0.1 | ±0.03 | ±0.015 |
| Width N Tolerance | ±0.1 | ±0.03 | ±0.015 |
| Pair Height Variation | 0.02 | 0.01 | 0.006 |
| Pair Width Variation | 0.02 | 0.01 | 0.006 |
2. Preload Classes (Radial Clearance μm)
| Model | No Preload (A) | Light (B) | Medium (C) | Heavy (D) |
|---|---|---|---|---|
| LSH15 | -4 ~ +2 | -12 ~ -4 | -22 ~ -14 | - |
| LSH20 | -5 ~ +2 | -13 ~ -5 | -23 ~ -15 | - |
| LSH25 | -6 ~ +2 | -14 ~ -6 | -24 ~ -16 | -33 ~ -25 |
| LSH30 | -7 ~ +2 | -16 ~ -7 | -29 ~ -20 | -38 ~ -29 |
| LSH35 | -8 ~ +2 | -21 ~ -11 | -34 ~ -24 | -43 ~ -33 |
| LSH45 | -9 ~ +2 | -25 ~ -16 | -38 ~ -27 | -47 ~ -36 |