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Precision Ball Screws Shaft Dia.20 Lead 5/10/20 Accuracy Grade C5 (Part Number)

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Product Description

- Precision Ball Screws Shaft Dia.20 Lead 5/10/20 Accuracy Grade C5 from MISUMI.
- Precision Ball Screws have a shaft diameter of 20 mm and are available in three different lead sizes: 5mm, 10mm or 20mm.
- The accuracy grade option for this product is C5.
- The overall length of the shaft screw can be customized to fit a range of configurations, from 200mm to 900mm, in 1mm increments.
- The lead twisting direction for this product is right-handed.
- The screw shaft is made of S55C while the nut is made of SCM420.

Product Overview

1. This series of products is the C5 Precision Ball Screw with the shaft diameter of 20 and lead of 5/10/20.
2. With small backlash of the nut, it has higher precision and lower noise than the rolled Ball Screw, but the motor starting torque will increase.
3. It is more suitable for positioning mechanisms in FA automation equipment.
4. The screw shaft end is machined according to standard specifications. If the shaft end requires alteration, it should be specified according to the catalog.
Product Comparison
 Model No./Specification Example
Model No.AccuracyShaft Dia.LeadTotal Length
MISUMI Standard ProductBSS2010-300C52010300
C-ValueC-BSSA2010-300
Economy SeriesC-KBS2010-300C5 equivalent*1
*1 The Economy Series Ground Ball Screw accuracy class is equivalent to C5. See product comparison information for specification differences.

■ Lead Accuracy

【エコノミーシリーズ】 中国製 研削ボールねじ 軸径φ20 リード5/10/20:関連画像

■ Fluctuation Tolerances

Unit: μm

Accuracy ClassC3C5
ItemFluctuation (300)
(2)
Fluctuation (2π)
(3)
Fluctuation (300)
(2)
Fluctuation (2π)
(3)
Fluctuation Tolerance86188

(2) Fluctuation for an arbitrary length of 300mm within the effective thread length of the screw shaft
(3) Fluctuation for an arbitrary 1 rotation (2π rad) within the effective thread length of the screw shaft

 

■ Mounting Part Accuracy

【エコノミーシリーズ】 中国製 研削ボールねじ 軸径φ20 リード5/10/20:関連画像

Ground Ball Screw

 

 

 
 
ModelLeadScrew Length(1)(2)
Runout Tolerance
(Max.)
(3)
Runout Tolerance
(Max.)
(4)(5)
Perpendicularity Tolerance
(Max.)
(6)
Perpendicularity Tolerance
(Max.)
(7)
Perpendicularity Tolerance
(Max.)
Axial Clearance
TypeScrew Shaft 
Outer Dia.
Min.Max.MISUMI Standard Product
(BSS)
C-ValueEconomy Series
C-KBS
MISUMI Standard Product
(BSS)
C-ValueEconomy Series
C-KBS
MISUMI Standard Product
(BSS)
C-ValueEconomy Series
C-KBS
MISUMI Standard Product
(BSS)
C-ValueEconomy Series
C-KBS
MISUMI Standard Product
(BSS)
C-ValueEconomy Series
C-KBS
MISUMI Standard Product
(BSS)
C-ValueEconomy Series
C-KBS
C-KBS821002100.0110.10.0110.10.0050.02
*Reference value
0.01Not guaranteed0.012Not guaranteed0.005 or less0.008 or less0.008 or less
102/4100350
124/10150500
155/10/2015011000.0120.0120.0110.0150.015 or less0.015 or less
205/10/202001500
255/10/2530015000.0130.0130.0130.019
(1)・(2)  Radial Run-out of bearing mouting surface related to the centerline of screw groove.
     This measurement item is affected by Total Run-out (8) of the Screw Shaft, and so it must be corrected.
(3)   Radial runout of drive component interface surface in relation to screw shaft support axis.
(4)・(5)   Perpendicularity of shaft's bearing shoulders in relation to screw shaft support axis.
(6)   Perpendicularity of ball nut mounting flange surface (datum) in relation to screw shaft axis.
(7)   Radial runout of ball nut body outer circumference in relation to screw shaft axis.

Dimensional Drawing

Dimensional Drawing of Ball Screw (Unit: mm)
Dimensional Drawing 1

Dimensional Drawing 2

Dimensional Drawing 3
Specification Table
TypeAccuracy gradeScrew diameterLeadScrew shaftNut
Material Hardness Surface Treatment Material Hardness Surface Treatment
C-KBSC5205·10·20Equivalent to S55CHigh frequency quenching
58 to 62HRC
-Equivalent to SCM420Carburized
58 to 62HRC
-
 
Part Number of Ball ScrewBall ScrewL
(1mm increments)
YNumber of cyclesBasic Rated LoadAxial ClearanceTwisting
Direction
Screw support unit (Sold separately)
Ball ScrewTypeBall ScrewScrew Shaft O.D.Ball ScrewLeadC (Dynamic)
kN
C (Static)
kN
ShapeFixed side modelSupport side model
C-KBS2005200 to 1500L-824 laps4.310.30.015
or Less
RightSquare TypeC-TEK15C-TEF15
Round typeC-TFK15C-TFF15
103 laps4.910.6Square TypeC-TEK15C-TEF15
Round typeC-TFK15C-TFF15
201.8 laps4.310.3Square TypeC-TEK15C-TEF15
Round typeC-TFK15C-TFF15
The Y dimension must be larger than the full length of the nut kgf=N×0.101972
Alterations
Dimensional Drawing 4
 
■ Ball Screw Detailed dimension of alteration KC··KLC keyway
Dimensional Drawing 5
Shaft Dia.bt
Reference
dimension
Tolerance
(N9)
Reference
dimension
Tolerance
6 to 72-0.004
-0.029
1.2+0.1
0
8 to 1031.8
11 to 1240
-0.03
2.5
13 to 1753.0
18 to 2063.5
■ Ball Screw Detailed dimension of incomplete quenching range
Dimensional Drawing 6
Screw diameterIncomplete quenching range ℓ (max)
φ8, φ105mm
φ12, φ1510mm
φ20, φ2515mm
Screw Shaft Runout Tolerance
TypeScrew
Shaft
O.D.
Runout tolerance G (Max.)Incomplete
Hardened
Area (ℓ)
~125126~200201~315316~400401~500501~630631~800801~10001001~12501251~16001601~2000
E-TBS40.0600.075---------5
60.0750.075---------
C-TBSE
C-TBSB
80.1000.1400.2100.270-------10
10-0.1200.1600.2100.2700.350-----
12-0.1200.1600.2100.2700.3500.480----
15-0.1100.1300.1600.2000.2500.3200.4200.550--
20-0.1100.1300.1600.2000.2500.3200.4200.5500.7300.73015
25-0.1100.1100.1300.1600.1900.2300.3000.3800.5000.690
32--0.1100.1300.1600.1900.2300.3000.3800.5000.69020
E-KBS40.050----------5
60.0500.050---------
C-KBS80.0600.0750.100--------
100.0550.0650.0800.100-------
12-0.0650.0800.1000.120------10
15-0.0600.0700.0800.0950.1100.1400.1700.210--
20-0.0600.0700.0800.0950.1100.1400.1700.2100.270-15
25--0.0600.0700.0800.0900.1000.1300.1700.210-
E-KLR40.0500.050---------5
80.0650.0750.100--------
100.0650.0650.0800.100-------

Product Features

1. Drawing-based machining is no longer required, saving the time for drawing.
2. Ball Screw When used in combination with Economy series support unit, it has a better effect.
3. The total length of screw shaft can be specified in 1 mm increments. With abundant shaft end specifications, it is possible to specify alterations for different applications.

Example of Use

This series of Ball Screw products is more suitable for positioning mechanisms in FA automation equipment.
Example of Use 1
Characterized by small runout, MISUMI standard products are suitable for machining equipment.
Example of Use 2

Precautions

■ Selection and Precautions for Use of Ball Screw
● The noise value of the Ball Screw after assembly is not guaranteed.
● Although lithium soap-based grease has been applied at the factory, it is required to apply new grease every 2~3 months as standard after receiving the goods, otherwise the normal use will be affected. For details, see Catalog P687.
● 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.
Do not let the nut exceed the movement range of the Ball Screw nut, or screw out of the screw shaft, otherwise the ball will fall off and the ball cycling parts will be damaged.
● Ball Screws 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 (Diagram 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 (Diagram 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
・Removal of nut is prohibited・No impact on the nut・Be careful of falling due to weight
Precaution 1Precaution 2Precaution 3
   
・Checking for reverse action・Pay attention to intrusion of foreign objects・Nut overstroke is prohibited
Precaution 4Precaution 5Precaution 6
   
Precaution 7

Related Products

Related Products 1
Square support unit
Fixed side Ball Screw modelSupport side Ball Screw model
C-TEK15C-TEF15
Related Products 2Related Products 3
Round support unit
Fixed side Ball Screw modelSupport side Ball Screw model
C-TFK15C-TFF15
Related Products 4Related Products 5

Part Number 

  • Incomplete part number.
    Please use left hand selections to complete a part number.
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Part Number
C-KBS2005-[200-1500/1]
C-KBS2010-[200-1500/1]
C-KBS2020-[200-1500/1]
Part NumberPriceNameMinimum Order Qty.Volume DiscountDays to ShipLead
(mm)
Shaft Screw Overall Length L
(mm)

-

ECONOMY PRECISION BALL SCREW 1 Piece(s) 10 Day(s) 5200 ~ 1500

-

ECONOMY PRECISION BALL SCREW 1 Piece(s) 10 Day(s) 10200 ~ 1500

-

ECONOMY PRECISION BALL SCREW 1 Piece(s) 10 Day(s) 20200 ~ 1500

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  1. 1
Brand Introduction
MISUMI, the head office company, has been providing customers with various high-quality parts such as automation parts, mold parts, electronic parts, tool• consumables, etc. quickly and accurately since its establishment in Japan in 1963. By compiling product catalogs independently and establishing a marketing system for direct sales of products, a low-cost business operation mode has been created, and by making annual product plans according to customers' opinions and requirements, MISUMI brand-name products with high quality level have been continuously developed. MISUMI established MISUMI Precision Machinery Co., Ltd. in China in June 2003, and then changed its name to MISUMI (China) Precision Machinery Trading Co., Ltd. in June 2007, with its headquarters in Shanghai. Since the beginning of the stamping die standard parts business, the businesses of FA standard parts, plastic die standard parts and machining tools have been officially started successively, and the rapid development of MISUMI in China has won the full support of customers. China's manufacturing industry has unlimited prospects, which is why China's manufacturing industry market has become one of the most competitive industries in the world. MISUMI's business philosophy came into being - the key to the future development of China's manufacturing industry lies in cost competitiveness, "quality" and "time".

Basic Information

Screw Shaft O.D.(Ø) 20 Type Precision Accuracy Grade C5
Flange Shape Round Shape, 2 Set Screw Flats at both ends Fixed Side of Square Bearing Assembly (Purchase Separately) C-TEK15 Square Support Component Support Side (Purchase Separately) C-TEF15
Fixed Side of Round Bearing Assembly (Purchase Separately) C-TFK15 Support Side of Circular Support Assembly (Purchase Separately) C-TFF15 Motor Bracket for Panasonic 100W Servo Motor (Purchase Separately) E-TSMP40-22 or E-TSMP40-25
Motor Bracket for Panasonic 200~400W Servo Motor (Purchase Separately) E-TSMP60-30 Motor Bracket for Yaskawa, Mitsubishi, Delta, Inovance 100W Servo Motor (Purchase Separately) E-TSMA40-22 or E-TSMA40-25 Motor Bracket for Yaskawa, Mitsubishi, Delta, Inovance 200~400W Servo Motor (Purchase Separately) E-TSMA60-30
Motor Bracket for 42 Series Stepper Motor (Purchase Separately) E-TBMD42-22 Motor Bracket for 57 Series Stepping Motor (Purchase Separately) E-TBMD57-30

Frequently Asked Questions (FAQ)

Question: What is the operating temperature limit for the ball screw?
Answer: The operating temperature limit for the 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. Grease has a good effect of reducing the temperature, so regular maintenance such as grease injection to the ball screw will improve the service life of the screw.
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.