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FTW5045P1-250L

type Roller Width b Roller Length L CAD Days to Ship

Specification/Dimensions

type
- FTW
Clear
Roller Width b(mm)
22.4

30

35

36

43.5

45

50

70
Clear
Roller Length L(mm)
150

250

320

380

500
Clear
CAD
- 2D
- 3D
Clear

Days to Ship

All

32 Day(s) or Less
Clear

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Flat Roller FTW Type (FTW5045P1-250L)

FLAT ROLLER

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THK

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(i)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]
· The flat roller incorporates a precision roller conforming to JIS B 1506 in a weight reduction cage pocket with improved rigidity by pressing a steel plate into M shape.
· The rollers are held in the cage pockets and do not fall off.
· In addition, as cages are provided with rollers with diameter of 5 mm or more, smooth movement can be obtained without damaging the rolling surface even when the hardness of the rolling surface is low.
· As the flat roller is narrowed to use between 2 rolling surfaces, it moves in the same direction as the table by half of the table movement.
· [Large Load Capacity] As the rollers are installed at a small pitch, the allowable load is large, and depending on the conditions, it is usable on the rolling surface of castings that have not been hardened. Moreover, the flexural rigidity of the table is almost the same as that of the sliding surface.
· [Standardization of Combination Accuracy for 90° V Surface and Flat Surface] Standardized so that it can be mounted on the most common 90° V-flat sliding surface with the narrow guide system of tables and saddles of various machines, so it can be used without major design changes.
· [Lightest Friction in Roller Type Linear Motion System] Since the rollers are aligned and held in a lightweight and rigid cage, there is no mutual friction between the rollers and the skew of the rollers can be suppressed. For this reason, the coefficient of friction is as small as μ = 0.001 to 0.0025 and there is no stick-slip that causes problems on slippery surfaces.
· [Single-action Cage Connection] When installing in a large machine, the flat roller can be easily connected on the bed and is easy to assemble even if it is long.
· Multiple roller rows, and the cage is formed at 90°.
· When FT/FT-V type is used for the flat surface, a roller having 0.7071 times the roller diameter is used on the flat surface, such that it can be mounted on the 90° V surface at the same height.
[Applications]
· Ideal for large machine tools such as planar, plano-miller and roll grinders for places requiring high-accuracy such as surface grinders, cylindrical grinders and optical measuring instruments.