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Support Units for Ball Screw, Support Side Round Type (C-TFF20)
- Volume Discount
This is an economy item, The price is cheaper than the MISUMI standard product.
- RoHS
Part Number
Configured Part Number is shown.
C-TFF20
Product Overview
Dimensional Drawing
■Material Table
(*)Marked Low Temperature Black Chrome Plating is under preparation. Currently special order request can be accepted under the condition of MOQ.
| Type | Material | Surface treatment |
| ① | ① | |
| C-TFF | S45C equivalent | Black oxide |
| *C-TFFHR | Low Temperature Black Chrome Plating |
(*)Marked Low Temperature Black Chrome Plating is under preparation. Currently special order request can be accepted under the condition of MOQ.
Support Unit and Rated Load
| Bearing No. | Basic Dynamic Rated Load (N) | Basic Static Rated Load (N) |
| 3 | 440 | 150 |
| 4 | 910 | 340 |
| 6 | 1580 | 580 |
| 10 | 2310 | 960 |
| 12 | 3190 | 1380 |
| 15 | 3920 | 1980 |
| 17 | 6690 | 3360 |
| 20 | 8960 | 4620 |
| 25 | 9800 | 5500 |
| 30 | 13650 | 7910 |
Specification Table
| Part Number | Axis Diameter d | L | H | F | D | A | P.C.D. | B | V | d1 | d2 | ℓ | Retaining ring | |
 Type |  No. | |||||||||||||
| C-TFF (Black oxide) *C-TFFHR (Low Temperature Black Chrome Plating) | 3 | 3 | 10 | 6 | 4 | 18 | 32 | 24 | 25 | 10 | 3.4 | 6.5 | 4 | Thickness 0.25 |
| 4 | 4 | 13 | Thickness 0.25 | |||||||||||
| 6 | 6 | 22 | 36 | 28 | 28 | 17 | STWN6 | |||||||
| 10 | 8 | 12 | 7 | 5 | 28 | 43 | 35 | 35 | 22 | STWN8 | ||||
| 12 | 10 | 15 | 8 | 34 | 52 | 42 | 42 | 26 | 4.5 | 8 | STWN10 | |||
| 15 | 15 | 17 | 9 | 40 | 63 | 50 | 52 | 32 | 5.5 | 9.5 | 5.5 | STWN15 | ||
| 17 | 17 | 20 | 11 | 9 | 50 | 77 | 61 | 61 | 40 | 6.6 | 11 | 6.5 | STWN17 | |
| 20 | 20 | 57 | 85 | 70 | 68 | 47 | STWN20 | |||||||
| 25 | 25 | 24 | 14 | 10 | 63 | 98 | 80 | 79 | 52 | 9 | 14 | 8.5 | STWN25 | |
| 30 | 30 | 27 | 18 | 9 | 75 | 117 | 95 | 93 | 62 | 11 | 17.5 | 11 | STWN30 | |
(1), (2), and (3) are separate components. Please keep them properly.(*)Marked Low Temperature Black Chrome Plating is under preparation. Currently special order request can be accepted under the condition of MOQ.Product Features
Suface treatment comparison:
The black oxide type is cost-effective and can resist corrosion if protective oil is applied regularly.
If it is used in a high-humidity environment or requires less maintenance, it is recommended to use the low-temperature black chrome type.
The black oxide type is cost-effective and can resist corrosion if protective oil is applied regularly.
If it is used in a high-humidity environment or requires less maintenance, it is recommended to use the low-temperature black chrome type.
| Specification | Black Oxide | Low-Temperature Black Chrome |
| Method | Chemical conversion on steel surface forming black oxide layer | Electroplating black chrome at low temperature, usually with Ni underlayer. |
| Surface Quality | Matte black, prone to fading with abrasion. | Deep black, smooth, durable color, high aesthetics. |
| Coating Thickness | Very thin, ~0.5–1.5 μm, almost no dimensional change. | 0.3–2 μm, thicker if Ni underlayer is applied. |
| Corrosion Resistance | Moderate, depends on oil layer; not suitable for long-term outdoor use. | Very high, withstands humid/salty environments, long coating life. |
| Advantages | Low cost, fast, no dimensional change, easy to reprocess. | Superior corrosion resistance, hard, durable color, high aesthetics. |
| Disadvantages | Poor corrosion resistance without maintenance, easy fading. | Complex process, higher cost. |
Usage Method
Precautions
Example of Use
Part Number
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Basic Information
| Type | Support Side | Shape | Round Type | Surface Treatment | Black Oxide |
|---|---|---|---|---|---|
| Material | S45C | Type | Single Product | Surface Treatment | Ferroferric oxide protective film (Black Oxide) |
Please check the type/dimensions/specifications of the part C-TFF20 in the Support Units for Ball Screw, Support Side Round Type series.
- The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .
Frequently asked question (FAQ)
- Question: What does "applicable shaft diameter of oil seal" mean?
- Answer: The support unit purchased from MISUMI already includes the collar. The collar and the oil seal in the support have been matched, and it can be ignored as long as it is matched with MISUMI ball screw on sale according to the "Ball Screw Applicability Table". However, if it is matched with the ball screw purchased from other companies, please select the type according to shape and size of the shaft end of the screw.
- Question: What should I do if the accessories in the support unit are lost or damaged?
- Answer: All kinds of accessories can be sold separately, please select according to the MISUMI catalog
- Question: Square type support units are divided into standard type and narrow pitch type, what is the difference?
- Answer: In the case of limited pitch space, please use the narrow pitch type, but be sure to choose according to the shaft end size of the ball screw. For example: please use standard type (C-TEK) support unit for C-TBSE type ball screw and narrow pitch type (C-TBK) for C-TBSB type ball screw.
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| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Shaft Dia. d (Ø) | Total Length L (mm) | P.C.D (mm) | Flange Width B (mm) | Outer Dia. D (mm) |
|---|---|---|---|---|---|---|---|---|---|
MYR 23.04 | 1 Piece(s) | Available | 1 Day(s) | 10 | 15 | 42 | 42 | 34 | |
MYR 29.80 | 1 Piece(s) | Available | 1 Day(s) | 15 | 17 | 50 | 52 | 40 | |
MYR 60.12 | 1 Piece(s) | Available | 10 Day(s) | 17 | 20 | 77 | 61 | 50 | |
MYR 76.73 | 1 Piece(s) | Available | 1 Day(s) | 25 | 24 | 80 | 79 | 63 | |
MYR 31.05 | 1 Piece(s) | Available | 10 Day(s) | 3 | 10 | 24 | 26 | 20 | |
MYR 109.56 | 1 Piece(s) | Available | 10 Day(s) | 30 | 27 | 95 | 25 | 18 |
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