Standard LM shaft
Brand :
THK
Caution
- During processing, there is a possibility that a step may form in the center of the inner side of the hollow shaft (pipe shaft).
- Only some products are available for handling at MISUMI (products with special materials or with surface treatment are not handled). For the latest information, please check the website. MISUMI does not support alteration, custom order, or similar requests.
- The product images are representative only. Specifications may vary by part number, including shape and color.
Product Description
[Features]
· THK's dedicated high-quality linear bushing LM type.
· We offer LM shafts with short lead times.
· Precision grade LM shafts with shaft diameter tolerances of g5 and h5 are also manufactured as semi-standard products.
· We also manufacture martensitic stainless steel LM shafts with corrosion resistance.
Drawing
Product Specification
[Main material]
SUJ2 (high carbon chrome bearing steel)
THK5SP (THK standard material)
SUS440C equivalent
[Hardness] 58–64 HRC (SUJ2, THK5SP), 56 HRC or higher (SUS440C equivalent)
[Hardening depth] 0.8–2.5 mm (varies depending on shaft diameter)
[Surface roughness] Ra 0.4 or less
[Straightness of LM shaft] 50 μm/300 mm or less
*No center hole drilling
Specifications Table
Model example
| Part number | Shaft fitting | Pipe inner diameter | — | Length L | Solid / Hollow | |
| Straight Pipe | SF8 SF8 | (G6) (G6) | X3 | — — | 500L 500L | K |
| Part number | Shaft diameter | Length of conveyance L | ||
|---|---|---|---|---|
| d | Tolerance g6 μm | Minimum Length | Maximum Length | |
| SF 3 | 3 | -2 -8 | 20 | 400 |
| SF 4 | 4 | -4 -12 | 20 | 400 |
| SF 5 | 5 | 20 | 500 | |
| SF 6 | 6 | 20 | 1,500 | |
| SF 8 | 8 | -5 -14 | 20 | 1,500 |
| SF 10 | 10 | 30 | 1,500 | |
| SF 12 | 12 | -6 -17 | 30 | 1,500 |
| SF 13 | 13 | 30 | 1,500 | |
| SF 16 | 16 | 40 | 3,000 | |
| SF 20 | 20 | -7 -20 | 40 | 3,000 |
| SF 25 | 25 | 50 | 3,000 | |
| SF 30 | 30 | 60 | 3,000 | |
| SF 35 | 35 | -9 -25 | 70 | 3,000 |
| SF 38 | 38 | 100 | 3,000 | |
| SF 40 | 40 | 100 | 3,000 | |
| SF 50 | 50 | 100 | 3,000 | |
| SF 60 | 60 | -10 -29 | 200 | 3,000 |
| SF 80 | 80 | 200 | 3,000 | |
| SF 100 | 100 | -12 -34 | 200 | 3,000 |
[ ! ]No center hole drilling
[ ! ]MISUMI does not support alteration or custom orders.