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Rolled Ball Screws Shaft Dia.40 Lead 5/10/20/40 Precision Grade C7

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MISUMI

MiSUMi Economy

MISUMI

Part Number

Configured Part Number is shown.

Drawing/Specifications
Part Numbers
More Information

Product Overview

1. This series of products is the C7 Rolled Ball Screw with the shaft diameter of 40 and lead of 5/10/20/40.
2. It is more suitable for feeding mechanisms in FA automation equipment.
3. The screw shaft end is machined according to standard specifications. If the shaft end requires alteration, it should be specified according to the catalog.

Dimensional Drawing

Accuracy Grade	Screw Dia.	Lead	Screw Shaft			Nut
Accuracy Grade	Screw Dia.	Lead	Material	Hardness	Surface Treatment	Material	Hardness	Surface Treatment
C7	40	5·10·20·40	Equivalent to S55C	Induction hardening 58～62HRC	-	Equivalent to SCM420	Carburized 58～62HRC	-

Specification Table

Part Number			Shaft overall length L (1mm increments)	Y	Number of Circuits	Basic Load Rating		Axial Clearance	Twisting Direction
Type	Screw Shaft O.D.	Lead				C (Dynamic) kN	C (Static) kN
E-TBS	40	05	300~2000	L-131	4 turns	10.5	39.5	0.2 or Less	Right
		10				27.9	77.5
		20			2.8 turns	19.7	53.5
		40			1.8 turns	10.2	33.2
* The Y dimension must be larger than the full length of the nut									kgf＝N×0.101972

Alterations

	Part Number (Type·Screw shaft outer diameter·Lead)	－	L	－	(NC·KC…etc.)
	E-TBS4005	－	400	－	KC10

■Support side

Alterations	Code	Spec.
① No Machining on Support Side Shaft End	NC	No machining added on the support side shaft end. Specifying Sample NC
② Ball Nut Orientation Reversed	RLC	Changes the nut direction. Specifying Sample RLC
③ No machining of the support side shaft-end retaining ring grooves	RNC	No machining of the support side shaft-end retaining ring grooves. Specifying Sample RNC
④ Change the length of the support side shaft end	FC	Change the length of the support side shaft end. 21≤FC≤80 FC=1mm increments Ordering Code FC30
⑤Change the machining content of the support side	GC	Change the machining content of the support side. 5≤G≤80 Choose Q from 12, 15, 20, 25 and 30 G＝1mm increments Ordering Code GC－Q25－G30

Only one of ①, ③, ④ and ⑤ can be selected.

Only one of ⑦, ⑧ and ⑨ can be selected.

Only one of ⑩ and ⑪ can be selected.

When ⑫ and ⑬ are specified simultaneously, no male thread will be machined regardless of the value specified for U in ⑫.

When specifying any alteration, the nut motion range (Y dimension) may become shorter. Please make sure that the nut motion range is greater than the full length of the nut.

■Fixed side

Alterations	Code	Spec.
⑥ Machining fixed side wrench slots	SZC	Adds wrench flats on the fixed side shaft end. Specifying Sample SZC Move the nut to the wrench slot, otherwise the ball will fall off. The nut may not be moved within the Incomplete Hardened Area. Note that when selecting.
⑦ Machining fixed side shaft end keyways	KC	Adds a keyway on the fixed side shaft end. When specified simultaneously with 5≤KC≤37 and ⑪, 5≤KC≤F－1 KC=1mm increments Ordering Code KC10
⑧ Machining fixed side shaft end keyways	KLC	The machining position of keyways at fixed side shaft end can be specified. (Keyway size is the same as KC.) When specified simultaneously with 5≤K≤36　K＋S≤37 and ⑪, 5≤K≤68 K＋S≤F－1 K, S＝1mm increments Ordering Code KLC－K5－S3
⑨ Machining fixed side shaft end plane	SC	Adds a flat on the fixed side shaft end. When specified simultaneously with 5≤SC≤37 and ⑪, 5≤SC≤F－1 SC=1mm increments Ordering Code SC10
⑩ No machining of small steps on the fixed side	NF	No machining of small steps on the fixed side Ordering Code NF
⑪ Change dimensions of small steps on the fixed side	FP	Change dimensions of small steps on the fixed side 38≤F≤70　15≤P≤25 F, P＝1mm increments Ordering Code FP－F50－P20
⑫ Change dimensions of big steps on the fixed side	EU	Change dimensions of big steps on the fixed side 16≤E≤150　13≤U≤E－3 E, U＝1mm increments Ordering Code EU－E100－U30
⑬No machining of big steps male thread on the fixed side	NU	No machining of big steps male thread on the fixed side Ordering Code NU

■Detailed dimension of alteration KC··KLC keyway

Shaft Dia.	b		t
Shaft Dia.	Reference Dimension	Tolerance (N9)	Reference Dimension	Tolerance
6~7	2	-0.004 -0.029	1.2	+0.1 0
8~10	3	-0.004 -0.029	1.8
11~12	4	0 -0.03	2.5
13~17	5		3.0
18~22	6		3.5
23~30	8	0 -0.036	4.0	+0.2 0
31~35	10	0 -0.036	5.0	+0.2 0

■Screw shaft runout tolerance
Dimensional Drawing

Type	Screw shaft outer diameter	Runout tolerance G (Maximum)									Incomplete quenching range (ℓ)
Type	Screw shaft outer diameter	~315	316~400	401~500	501~630	631~800	801~1000	1001~1250	1251~1600	1601~2000	Incomplete quenching range (ℓ)
E-TBS	40	0.110	0.130	0.160	0.190	0.230	0.300	0.380	0.500	0.690	30

Product Features

1. Shipping within 5 days.
2. Drawing-based machining is no longer required, saving the time for drawing.
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

Precautions

■ Selection and Precautions for Use
● The noise value of the 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.
●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

·Checking for reverse action	·Pay attention to intrusion of foreign objects	·Nut overstroke is prohibited

: 30; 45; 60

Part Number
E-TBS4005-[300-2000/1]
E-TBS4010-[300-2000/1]
E-TBS4020-[300-2000/1]
E-TBS4040-[300-2000/1]

Standard Unit Price	Minimum order quantity	Days to Ship	Lead (mm)	Shaft Screw Overall Length L (mm)
-	1 Piece(s)	11 Day(s)	5	300 ～ 2000
-	1 Piece(s)	11 Day(s)	10	300 ～ 2000
-	1 Piece(s)	11 Day(s)	20	300 ～ 2000
-	1 Piece(s)	11 Day(s)	40	300 ～ 2000

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. We have created a low-cost business model by compiling our own catalogs and establishing a marketing system to sell our products directly, and we continue to develop MISUMI branded products with a high level of quality by developing an annual product plan based on customer feedback and requests. 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. Thus was born MISUMI's business philosophy - the key to the future of manufacturing in China is cost competitiveness as well as "quality" and "time".

Basic Information

Screw Shaft O.D.(Ø)	40	Type	Rolled	Accuracy Grade	C7

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Specification/Dimensions

Lead(mm)
5

10

20

40
Clear
Shaft Screw Overall Length L(mm)
[300-2000/1mm Unit(s)]
Clear
type
- E-TBS
Clear

Days to Ship

All

11 Day(s) or Less
Clear

Specify Alterations

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 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.

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