Standard LM Shaft
Brand :
THK
Caution
- Some of the items are scheduled to be discontinued as of end of March in 2023. The manufacturer keep the items produced but they are not available with Misumi.
There are not the replacement items and the plan to resumption of sale. Please check the quotation and order screen for details.
Product Description
[Features]
· A special high-quality THK dedicated for the LM type linear bushing.
· Precision-grade LM shafts with a shaft diameter tolerance of g5, h5 manufactured as semi-standard.
· LM shafts made from corrosion-resistant martensitic stainless steel can also be manufactured.
Drawing
Product Specifications
[Main Materials]
SUJ2 (High carbon chrome bearing steel)
THK5SP (THK standard material)
Equivalent to SUS440C
[Hardness]58 to 64 HRC (SUJ2, THK5SP), 56 HRC or higher (Equivalent to SUS440C)
[Case Depth]0.8 to 2.5 mm (Depending on the shaft diameter)
[Surface Roughness]Ra0.4 or less
[Straightness of LM Shaft]50 µm/300 mm or less
Standard Table
| Part number | Shaft diameter | Production length 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 |