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- Notice of End of Sales for Economy Series Pneumatic Equipment Category. More information.
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Rolled Ball Screws Shaft Dia.20 Lead 5/10/20 Accuracy Grade C7 (Part Numbers)
- Rolled Ball Screws Shaft Dia.20 mm Lead 5/10/20 Accuracy Grade C7 from MISUMI.
- This product is an economical option offered by MISUMI.
- Can select 2 types of shaft end, BK shaft end type (C-TBSE) and EK shaft end type(C-TBSB).
- Shaft screw overall length can be configured 200 to 2000mm (1mm increment).
- Screw shaft outer diameter is 20mm.
- 3 Lead sizes can be selected, 5mm, 10mm, 20 mm.
- The lead twisting direction is right.
Part Number
Configured Part Number is shown.
Economy Rolled Ball Screws Shaft Dia. 20
Precision Adjustable Wear Resistance
- Available in multiple lead sizes for diverse needs.
- C7 grade precision for high accuracy applications.
- Shaft length adjustable within a specified range in 1mm increments
- Right-hand lead twist ensures smooth operation.
- Made from S55C and SCM420 for superior strength and wear resistance.
MISUMI Standard
Cheaper Price
Product Variety
3D CAD Support
Product Overview
1. The product is an Economy series C7 rolled Ball Screw without pre-pressure suitable for a feeding mechanism requiring multi-point positioning.
2. Ball Screw Standard nuts are adopted to meet the requirement of space saving.
3. The shaft end of screw is processed in accordance with standard specifications, so it can be used directly with the support unit without reprocessing. If the shaft end requires alteration, which should be specified according to the catalog.
4. When used in combination with MISUMI’s Economy series support unit, it has a better effect.
2. Ball Screw Standard nuts are adopted to meet the requirement of space saving.
3. The shaft end of screw is processed in accordance with standard specifications, so it can be used directly with the support unit without reprocessing. If the shaft end requires alteration, which should be specified according to the catalog.
4. When used in combination with MISUMI’s Economy series support unit, it has a better effect.
Product Comparison
| Model No./Specification Example | |||||
| Model No. | Accuracy | Shaft Dia. | Lead | Total Length | |
| MISUMI Conventional Standard Product | BSST2020-800 | C7 | 20 | 20 | 800 |
| MISUMI Conventional C-Value Product | C-BSSTA2020-800 | ||||
| Economy Series* | C-TBSB2020-800 | ||||
■ Lead Accuracy
■ Cumulative Lead Error Tolerance
(4) Lead error tolerance value for an arbitrary datum length of 300mm within the effective thread length of the screw shaft
*Lead accuracy is reference for accuracy class C7.
Mounting part accuracy differs from MISUMI conventional products
See ■ Mounting Part Accuracy below
Unit: μm
| Accuracy Class | C7 | C10 |
| Cumulative Lead Error (4) | 52 | 210 |
*Lead accuracy is reference for accuracy class C7.
Mounting part accuracy differs from MISUMI conventional products
See ■ Mounting Part Accuracy below
■ Mounting Part Accuracy
Rolled Ball Screw
Unit: mm
*Varies by lead
| Model | Lead | Screw Length | (1)(2) Runout Tolerance (Max.) | (3) Runout Tolerance (Max.) | (4)(5) Perpendicularity Tolerance (Max.) | Axial Clearance | ||||||
| Type | Screw Shaft Outer Dia. | Min. | Max. | Conventional Product (BSST) | Economy Series | Conventional Product (BSST) | Economy Series | Conventional Product (BSST) | Economy Series | Conventional Product (BSST) | Economy Series | |
| C-TBSE | 8 | 2 | 100 | 400 | 0.014 | 0.014 | 0.014 | 0.014 | 0.007 | 0.1 | 0.03 or less | 0.05 or less |
| 10 | 2/4 | 150 | 600 | |||||||||
| C-TBSE C-TBSB | 12 | 4/5/10 | 150 | 800 | 0.1 or less | |||||||
| 15 | 5/10/16/20 | 150 | 1200 | |||||||||
| 20 | 5/10/20 | 200 | 2000 | 0.05 or less* | 0.15 or less | |||||||
| 25 | 5/10/25 | 200 | 2000 | 0.02 | 0.02 | 0.02 | 0.02 | 0.07 or less* | 0.2 or less | |||
| 32 | 5/10/32 | 300 | 2000 | 0.008 | ー | |||||||
(1)・(2)
(3)
(4)・(5)
Radial run-out of bearing mouting surface related to the centerline of screw groove.(3)
(4)・(5)
This measurement item is affected by Total Run-out (8) of the Screw Shaft, and so it must be corrected.
Radial run-out of drive component interface surface in relation to screw shaft support axis.
Perpendicularity of shaft's bearing shoulders in relation to screw shaft support axis.
Dimensional Drawing
Product Drawings of Ball Screw (Unit: mm)
Specification Table
Alterations
■ Keyway Dimension
| Shaft Dia. | b | t | ||
| Reference Dimension | Tolerance (N9) | Reference Dimension | Tolerance | |
| 6 to 7 | 2 | -0.004 -0.029 | 1.2 | ＋0.1 0 |
| 8 to 10 | 3 | 1.8 | ||
| 11 to 12 | 4 | 0 -0.03 | 2.5 | |
| 13 to 17 | 5 | 3 | ||
| 18 to 20 | 6 | 3.5 | ||
Screw Shaft Runout Tolerance
| Type | Screw Shaft O.D. | Runout tolerance G (Max.) | Incomplete Hardened Area (ℓ) | ||||||||||
| ~125 | 126~200 | 201~315 | 316~400 | 401~500 | 501~630 | 631~800 | 801~1000 | 1001~1250 | 1251~1600 | 1601~2000 | |||
| E-TBS | 4 | 0.060 | 0.075 | - | - | - | - | - | - | - | - | - | 5 |
| 6 | 0.075 | 0.075 | - | - | - | - | - | - | - | - | - | ||
| C-TBSE C-TBSB | 8 | 0.100 | 0.140 | 0.210 | 0.270 | - | - | - | - | - | - | - | 10 |
| 10 | - | 0.120 | 0.160 | 0.210 | 0.270 | 0.350 | - | - | - | - | - | ||
| 12 | - | 0.120 | 0.160 | 0.210 | 0.270 | 0.350 | 0.480 | - | - | - | - | ||
| 15 | - | 0.110 | 0.130 | 0.160 | 0.200 | 0.250 | 0.320 | 0.420 | 0.550 | - | - | ||
| 20 | - | 0.110 | 0.130 | 0.160 | 0.200 | 0.250 | 0.320 | 0.420 | 0.550 | 0.730 | 0.730 | 15 | |
| 25 | - | 0.110 | 0.110 | 0.130 | 0.160 | 0.190 | 0.230 | 0.300 | 0.380 | 0.500 | 0.690 | ||
| 32 | - | - | 0.110 | 0.130 | 0.160 | 0.190 | 0.230 | 0.300 | 0.380 | 0.500 | 0.690 | 20 | |
| E-KBS | 4 | 0.050 | - | - | - | - | - | - | - | - | - | - | 5 |
| 6 | 0.050 | 0.050 | - | - | - | - | - | - | - | - | - | ||
| C-KBS | 8 | 0.060 | 0.075 | 0.100 | - | - | - | - | - | - | - | - | |
| 10 | 0.055 | 0.065 | 0.080 | 0.100 | - | - | - | - | - | - | - | ||
| 12 | - | 0.065 | 0.080 | 0.100 | 0.120 | - | - | - | - | - | - | 10 | |
| 15 | - | 0.060 | 0.070 | 0.080 | 0.095 | 0.110 | 0.140 | 0.170 | 0.210 | - | - | ||
| 20 | - | 0.060 | 0.070 | 0.080 | 0.095 | 0.110 | 0.140 | 0.170 | 0.210 | 0.270 | - | 15 | |
| 25 | - | - | 0.060 | 0.070 | 0.080 | 0.090 | 0.100 | 0.130 | 0.170 | 0.210 | - | ||
| E-KLR | 4 | 0.050 | 0.050 | - | - | - | - | - | - | - | - | - | 5 |
| 8 | 0.065 | 0.075 | 0.100 | - | - | - | - | - | - | - | - | ||
| 10 | 0.065 | 0.065 | 0.080 | 0.100 | - | - | - | - | - | - | - | ||
Product Features
1. Even if it is MISUMI economy series, the inspection standard is the same as that of MISUMI standard products, which implements quality inspection before leaving the factory to provide users with products that meet the specifications of the catalog.2. Ball Screw It no longer needs drawing processing, saving drawing time, min. shipped in 6 day at the earliest.
3. With a rich shaft end specifications, it has specified additional processing to meet a variety of occasions.
Example of Use
Automatic feeder (the workpiece feeds by the moving and positioning of the slider driven by the Ball Screw via the stepping motor)
Precautions
■ Selection and Precautions for Use of Ball Screw
● Rotating the nut by hand may not feel smooth, but does not affect the positioning precision, so this product is suitable for multi-point positioning feeding mechanism. Please feel free to use.
● If the operation requires low runout (e.g. machining equipment), please use MISUMI standard products.
In operation, if there is too much noise or sharp and harsh sound, please make sure that the installation accuracy of the screw and the specifications of peripheral components such as motors and couplings are appropriate.
● Lithium soap grease. SHC32 (red) has been applied.
Do not let the nut exceed the movement range of the ball screw nut, or screw out of the Ball Screw shaft, otherwise the ball will fall off and the ball cycling parts will be damaged.
● Ball Screw and nuts placed with an inclination may fall due to weight. Please be careful.
● This product is a machined type, so there will be knife patterns and color difference in its appearance. Small scratches or color changes without affecting the use and main function are of a normal phenomenon. Please feel free to use.
■ Precautions of the Ball Screw and peripheral parts design and assembly
The Ball Screw is a component that only bears axial load. If it is subjected to radial load or moment load, poor sliding, vibration or abnormal noise may occur, shortening its service life.
The reason that the Ball Screw bears radial load and moment load is the axis deviation and parallelism error of the surrounding parts. Therefore, it is necessary to correctly design and assemble the peripheral parts of the Ball Screw to prevent errors.
● Axis deviation of Ball Screw and support unit (Fig. 1)
- Axis deviation is the deviation of the Ball Screw fixed by the fixed side support unit and the bearing of the supporting side support unit.
- The allowable value of the axis deviation is 20μ or less (reference value)
●Parallelism between Ball Screw and linear guide (Figure 2)
- Parallelism error refers to the inclination of the Ball Screw in the up-down or left-right direction with respect to the reference of the linear guide.
- The allowable value of inclination is below 1/2000 (Figure 3)
●Precautions of assembly
If you notice abnormal noises during the operation of the Ball Screw or jamming during movement after assembly, please loosen the connections of the parts before proceeding. Adjust and reassemble after moving smoothly.
- Error in the left and right direction of the support unit (Fig. 1)
- Parallel error of linear guide and Ball Screw (Fig. 2)
- Fixing of workbench and nut bracket
- Fixing of Ball Screw nut and nut bracket
● Rotating the nut by hand may not feel smooth, but does not affect the positioning precision, so this product is suitable for multi-point positioning feeding mechanism. Please feel free to use.
● If the operation requires low runout (e.g. machining equipment), please use MISUMI standard products.
In operation, if there is too much noise or sharp and harsh sound, please make sure that the installation accuracy of the screw and the specifications of peripheral components such as motors and couplings are appropriate.
● Lithium soap grease. SHC32 (red) has been applied.
Do not let the nut exceed the movement range of the ball screw nut, or screw out of the Ball Screw shaft, otherwise the ball will fall off and the ball cycling parts will be damaged.
● Ball Screw and nuts placed with an inclination may fall due to weight. Please be careful.
● This product is a machined type, so there will be knife patterns and color difference in its appearance. Small scratches or color changes without affecting the use and main function are of a normal phenomenon. Please feel free to use.
■ Precautions of the Ball Screw and peripheral parts design and assembly
The Ball Screw is a component that only bears axial load. If it is subjected to radial load or moment load, poor sliding, vibration or abnormal noise may occur, shortening its service life.
The reason that the Ball Screw bears radial load and moment load is the axis deviation and parallelism error of the surrounding parts. Therefore, it is necessary to correctly design and assemble the peripheral parts of the Ball Screw to prevent errors.
● Axis deviation of Ball Screw and support unit (Fig. 1)
- Axis deviation is the deviation of the Ball Screw fixed by the fixed side support unit and the bearing of the supporting side support unit.
- The allowable value of the axis deviation is 20μ or less (reference value)
●Parallelism between Ball Screw and linear guide (Figure 2)
- Parallelism error refers to the inclination of the Ball Screw in the up-down or left-right direction with respect to the reference of the linear guide.
- The allowable value of inclination is below 1/2000 (Figure 3)
●Precautions of assembly
If you notice abnormal noises during the operation of the Ball Screw or jamming during movement after assembly, please loosen the connections of the parts before proceeding. Adjust and reassemble after moving smoothly.
- Error in the left and right direction of the support unit (Fig. 1)
- Parallel error of linear guide and Ball Screw (Fig. 2)
- Fixing of workbench and nut bracket
- Fixing of Ball Screw nut and nut bracket
Related Products
| Ball Screw Type | (Economy series) support unit Standard square type | (Economy series) support unit Round type | ||
| Fixed side model | Support side model | Fixed side model | Support side model | |
| C-TBSE | C-TEK15 | C-TEF15 | C-TFK15 | C-TFF15 |
 |  |  |  | |
| Ball Screw Type | (Economy series) support unit Narrow pitch square type | ||
| Fixed side model | Support side model | ||
| C-TBSB | C-TBK15 | C-TBF15 | |
 |  | ||
Part Number
CAD Data download and 3D preview are not available because the part number has not yet been determined.
- *In order to open the CAD Data download and 3D preview screen, the part number must be fixed.
- Please confirm the part number from "Specification / Dimension"on the left side, and then perform the CAD Data Download / 3D Preview operation.
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| Part Number |
|---|
| C-TBSB2005-[200-2000/1] |
| C-TBSB2010-[200-2000/1] |
| C-TBSB2020-[200-2000/1] |
| C-TBSE2005-[200-2000/1] |
| C-TBSE2010-[200-2000/1] |
| C-TBSE2020-[200-2000/1] |
| Part Number | Standard Unit Price | Minimum order quantity | Volume Discount | Days to Ship | Lead (mm) | Shaft End Type | Shaft Screw Overall Length L(mm) (mm) | Fixed Side of Square Bearing Assembly (Purchase Separately) | Square Support Component Support Side (Purchase Separately) | Fixed Side of Round Bearing Assembly (Purchase Separately) | Support Side of Circular Support Assembly (Purchase Separately) |
|---|---|---|---|---|---|---|---|---|---|---|---|
- | 1 Piece(s) | 11 Day(s) | 5 | BK Type | 200 ～ 2000 | C-TBK15 | C-TBF15 | - | - | ||
- | 1 Piece(s) | 11 Day(s) | 10 | BK Type | 200 ～ 2000 | C-TBK15 | C-TBF15 | - | - | ||
- | 1 Piece(s) | 11 Day(s) | 20 | BK Type | 200 ～ 2000 | C-TBK15 | C-TBF15 | - | - | ||
- | 1 Piece(s) | 11 Day(s) | 5 | EK Type | 200 ～ 2000 | C-TEK15 | C-TEF15 | C-TFK15 | C-TFF15 | ||
- | 1 Piece(s) | 11 Day(s) | 10 | EK Type | 200 ～ 2000 | C-TEK15 | C-TEF15 | C-TFK15 | C-TFF15 | ||
- | 1 Piece(s) | 11 Day(s) | 20 | EK Type | 200 ～ 2000 | C-TEK15 | C-TEF15 | C-TFK15 | C-TFF15 |
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Basic Information
| Type | Rolled | Flange Shape | Round Shape, 2 Set Screw Flats at both ends | Accuracy Grade | C7 |
|---|---|---|---|---|---|
| Screw Shaft O.D.(Ø) | 20 |
- 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 is the operating temperature limit for the economy series rolled ball screw?
- Answer: The operating temperature limit for the economy series rolled ball screw is 80°. Exceeding this limit will cause damage to the circulating parts and seals, as well as the deformation of the screw shaft and nut, affecting the life.
- Question: How to do if there is abnormal noise heard in use?
- Answer: MISUMI does not guarantee there is no abnormal noise during use. If abnormal noise occurs, please check the installation accuracy and the correct selection of surrounding parts. Please loosen the parts before re-adjustment. Please refer to "Precautions" for details.
- Question: Is it normal to feel stuck when rotating the nut by hand?
- Answer: It is a normal phenomenon, because this product is a rolled ball screw, and there is no run-and-fit test before leaving the factory. The sticking will disappear after running for a period of time under the condition of ensuring the installation accuracy If the sticking reaches the point where the motor can not drive, please contact MISUMI.
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- Left and Right Hand Precision Ball Screws - Shaft Dia. 8; Lead 1 / 2 / 4 / 5 / 10 - Accuracy Grade C5
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