Extra Low Profile Head Hex Socket Head Cap Screw -Single Item / Sales by Carton / Loosening Prevention Treated -Sales by Package-【1-500 Pieces Per Package】 (CBSM5-20)

Promotional pricing
Volume Discount

View the FAQ (10)

MISUMI

Product Details:

Manufacturer part number: CBSM5-20

Brand: MISUMI

Price: 1.25 €

Delivery time: 5 Days

Technical Data:

[M] Diameter (Screw Thread) Nominal: 5

[L] Length: 20 mm

Material: [Steel] EN 1.7220 Equiv.

Surface Treatment: Bright Chrome Plating

[P] Pitch: 0.8 mm

Order quantities extended (D-JIT)
Stock

(i)Remark

Please check the content on our website as the PDF does not contain the most up-to-date information.

Part Number

Once your search is narrowed to one product,
the corresponding part number is displayed here.

CBSM5-20

Drawing / Specifications
3D Preview 3D preview is available after complete configuration
Part Numbers
More Information
Catalog

Back to the Category Flat Head Screws/Low Head Screws

Technical Drawing - Flat Head Screws

No Thread Locking Compound (Available in Single item / Box (150 pcs. or more))

Hex Socket Extra Low Head Cap Screws: Related Image

With Thread Locking Compound, Package Sale (10 pcs.), EN 1.4567 Equiv. only

PACK-CBSTS *Tensile Strength 400 N/m㎡

(a), (b) Dimension

M	L	(a)	(b)
M3	4 to 10	Fully Threaded Section	0
M3	12	3	2
M4	5 to 10	Fully Threaded Section	0
M4	12 to 16	4	2
M5	6 to 10	Fully Threaded Section	0
M5	12 to 20	5	2
M6	8 to 10	Fully Threaded Section	0
M6	12 to 25	6	2

* For other dimensions, refer to the specification table.

Available dimensions and tolerances can be found under the tab More Information.

Basic Properties (e.g., material, hardness, coating, tolerance) - Flat Head Screws

No Thread Locking Compound (Available in Single item / Box (150 pcs. or more))

Type	[M] Material	[H] Hardness	[S] Surface Treatment	Strength Class *	Head Strength Class
CBSS	EN 1.7220 Equiv.	32 to 39HRC	Black Oxide (Black)	10.9	5.8 (M10 4.8)
CBSA			Trivalent Chromate (Silver)
CBSR			LTBC Plating
CBSM			Bright Chrome Plating
CBSTS	EN 1.4567 Equiv.	—	—	(Note 1)	—
BOX−CBSTS

(*1) Tensile Strength of CBSTS is 400 N/mm²

Thread	Tightening Torque (Reference Value)
	N⋅m
	CBSS CBSA	CBSR	CBSTS BOX−CBSTS PACK-CBSTS
M2	0.12	-	0.25
M2.5	0.24	-	0.42
M3	0.6	0.9	0.8
M4	1.2	2.2	1.6
M5	2.1	3.3	3.0
M6	3.0	5.9	5.0
M8	6.0	10.3	8.6
M10	10.8	-	15.4

Decide the actual tightening torque in consideration with the usage environment such as friction with the mating material and accuracy of the tightening tool

With Thread Locking Compound, Package Sale (10 pcs.), EN 1.4567 Equiv. only

[ ! ] Thread Locker
·Single item with thread locker applied is not available.
· (a) It is applied to the entire circumference.
·Cannot be used repeatedly.
The locking agent is encased in a micro capsule, once the screw is tightened, it breaks and the agent will come out.
Although it is possible that not every capsule has been cracked, the thread locking effect may be less after the second time.
Please be aware that contact with oil will reduce performance.

TYPE	Treatment Code	[M] Material	Treatment
PACK-CBSTS	YBM	EN 1.4567 Equiv.	Thread Locking Compound (Epoxy Resin Adhesive)

Further specifications can be found under the tab More Information.

Composition of a Product Code - Flat Head Screws

Part Number

CBSA6−12

Part Number	—	Treatment Code
PACK− CBSTS 3− 5	—	YBM

General Information - Flat Head Screws

Flathead Screw Selection Details

- Drive: hex (external hex), hexagon socket, hex socket (Torx)

- Strength classes: 8.8, 10.9, A2-50, A4-80

- Threads: M2, M2.5, M2.6, M3, M4, M5, M6, M8, M10, M12

- Thread lengths: 3 mm – 50 mm

- Surface coating: burnished, nickel-plated, chrome-plated, LTBC coating

- Materials: stainless steel, steel

Description/Basics

The screwed connection is one of the most commonly used methods among the soluble compounds. Due to their flat head, flathead screws have various advantages over conventional screws.

Screws with a flat head are often utilised in places that need to form a flat level as much as possible.
Due to their head geometry, flathead screws allow counterbores to be made less deep or completely omitted. This allows covers to be made thinner walls and thus save weight. These advantages also result in cost savings through material savings and the elimination or shortening of production steps. The MISUMI flat-head screws are thus ideal for mounting sheet metal, thin panels, housing covers and other covers.
As opposed to the head form of commercially available screws, the flathead screw reduces the risk of injury at accessible locations, such as housing covers, mounting flaps, etc. This also eliminates the frequently required plastic caps on large screw heads.

Contrary to the standard flathead screws (DIN 921, DIN 922 and DIN 923), MISUMI has flathead screws with hexagon socket, hexagon socket (Torx) and external hexagon. These drive types reduce slipping during assembly compared to typical cross or slotted drives.

MISUMI offers flathead screws in various strength classes.
However, due to the delicate head of flathead screws, the strength on the head can be lower than that on the thread, since there is less material available. The respective strength class is therefore assigned to the individual flathead screws (see Basic Properties).

Areas of Application

Flathead screws are intended for fastening of joining parts. Often, the flathead screws are used for housing covers or in applications requiring low weight.
Thanks to the multi-selectable surface treatments, flathead screws are particularly resistant to environmental influences. This allows flathead screws to be used in almost all industry sectors of plant engineering and mechanical engineering.
The benefits of using flathead screws are versatile. The main advantages of flathead screws are their low weight and space savings.
To utilise a flathead screw with vent function, e.g., for pressure equalization, MISUMI also offers hollow screws with a flat head.

Allen screws/extra flat head: related image display

(1) Through-hole for exhaust air

Materials

Strength classes

The strength class gives the tensile strength [R _m] and yield strength [R _e], or expansion limit [R _p-0.2] of the screw.
Screws that are subject to a strength class are often marked by the strength class on the screw head. For some screws, the reference to the strength class is missing. In such cases, please refer to the Screw Data Sheet (see Basic Properties).
The screw strength class is an indication of the tensile strength and the expansion limit of a screw. The higher the specification of the strength class, the higher the tensile strength and expansion limit. In principle, a distinction is made between steel and stainless steel (stainless steel).
Stainless steel screws are marked with the letters A, C and F (e.g., A2-50). Steel screws are marked with two numbers, separated by a dot (e.g., 8.8).
The tensile strength and elongation limit can be determined based on this information. Which of the two values and safety number are used for the further calculation of the screws depends on the applied load case.

Example of a strength marking

Tensile strength steel

Example: 8.8

R _m= 8 x 100 N/mm ² = 800 N/mm ²

The expansion limit of the screw material is the resistance value that can be applied to the material without permanent deformation. Thus, the screw can return to its original length after this stress (elastic range).
If the elastic range is exceeded, there is a permanent (plastic) deformation, which can end in a tear/fracture of the material upon further stress.
To determine the value, both values of the strength specification are multiplied with each other and additionally by a factor of 10.

Example 8.8

R _p-0.2 = 8 x 8 x 10 N/mm ² = 640N /mm ²

Tensile strength stainless steel

For stainless steel screws, the strength specification begins with the specification of the material group used.
The most common stainless steel screw is the A2 stainless steel screw, which is manufactured from (colloquially speaking) V2A material. In this example, the A2 screw is made of austenitic stainless steel.
Ferritic stainless steel screws are often marked with a [F] at the beginning and martensitic stainless steel types with a [C].
Unlike the steel screws, the second value of the strength specification is multiplied by a factor of 10 for the stainless steel screws in order to determine the tensile strength of the screw material. The expansion limit [R _p-0.2] must be determined in tabular form based on the expansion limit of the raw material or the manufacturer.

Example A2-50

R _m= 50 x 10 N/mm ² = 500 N/mm ²

Screws without specification of this strength classification have manufacturer-bound values that must be taken from the respective data sheets or manufacturer information. This often occurs with screws with special shape and treatment.

Coatings

MISUMI’s flathead screws are available in burnished, chrome-plated, or nickel-plated to best protect them from corrosion.
As an alternative to one of these surface treatments, flathead screws can also be coated with LTBC. The LTBC coating (Low Temperature Black Chrome Platinum) is a surface coating that protects against corrosion and has low reflection. The coating consists of a 5 μm thick chrome ceramic layer with fluoropolymer infusion and forms a black film. In addition, the LTBC coating is resistant to cracking and bending and it is thus resistant to peeling due to extreme or repeated bending. This makes LTBC-coated flathead screws particularly suitable for areas where corrosion or light reflections are undesirable.

Dimensions

Compared to an M5 standard cylinder head screw with 5 mm head height, with a flathead screw it is possible to save up to 4 mm of head height.

(1) Standard cylinder head screws, (2) Flat head, (3) Safety screws, (4) Very flat head, (5) Ultra flat head

Products		Hexagon socket screws	flat head	Safety screws	very flat head	ultra flat head

		P. 172, 174, 175	P. 194	P. 185	P. 195	P. 196
		Head height (in mm)
M	2	2	1.3	1.3	*1.1 (min.)**	0.5
	2.5	2.5	1.6	1.5	*1.3 (min.)**	0.6
	3	3	2	1.65	1.5	0.8
	4	4	2.8	2.2	1.5	0.9
	5	5	3.5	2.75	1.5	1
	6	6	4	3.3	1.5	1.2
	8	8	5	4.4	1.5	-
	10	10	6	5.5	1.5	-
	12	12	7	-	-	-

Bolt Head Height Comparison Chart
*Head height varies by material.

Instructions for Use / Installation Information - Flat Head Screws

Tightening torques/torques

Products		flat head			very flat head		ultra flat head
Products		Steel	Steel, stainless steel	Stainless steel	Steel	Stainless steel	Steel	Steel
Strength class		10.9	8.8, A4-80	A2-50	5.8 (M10, 4.8)	-	-	-
Tensile strength (N/mm ²)		1040	800	500	500 (M10, 400)	400	350 (M2, 200)	350 (M2, 200)
M	2	-	-	0.25	0.25	0.25	0.16	0.178
	2.5	-	-	0.42	0.82	0.42	0.35	-
	3	1.1	0.9	0.8	0.9	0.8	0.6	0.63
	4	4.0	1.8	1.6	1.8	1.6	1.1	1.5
	5	6.1	3.6	3.2	3.2	3.0	2.2	3.0
	6	10.5	7.2	6.5	5.2	5.0	5.0	5.2
	8	18.4	10.8	9.7	9.0	8.6	-	-
	10	-	31.5	28.4	16.2	15.4	-	-
	12	-	45.0	40.5	-	-	-	-

Note: The above values are for comparison purposes only (reference values).

Further specifications can be found under the tab More Information.

Installation Information

Dimensions of the screw and counterbores

Thread (d)	flat head					very flat head (stainless steel screw)					ultra flat head Hexagon socket					ultra flat head Torx
Thread (d)	d'	dk	D'	k	H'	d'	dk	D'	k	H'	d'	dk	D'	k	H'	d'	dk	D'	k	H'
M2	2.5	3.8	5	1.3	1.5	4	4	5	1.1 (1.5)	1.3 (1.7)	2.5	4	5	0.5	0.7	2.5	4	5	0.5	0.7
M2.5	3	4.5	5.5	1.6	1.8	3	5	6	1.3 (1.5)	1.5 (1.7)	3	5	6	0.6	0.8	-	-	-	-	-
M3	3.5	5.5	6.5	2	2.3	3.5	6	7	1.3 (1.5)	1.6 (1.8)	3.5	6	7	0.8	1.1	3.5	7	8	0.8	1.1
M4	4.5	7	8	2.8	3.2	4.5	8	9	1.5	1.9	3.4	8	9	1.1	1.3	4.5	8	9	0.9	1.3
M5	5.5	8.5	9.5	3.5	3.9	5.5	9	10	1.5	1.9	5.5	9	10	1.4	1.4	5.5	9	10	1	1.4
M6	6.5	10	11	4	4.5	6.5	10	11	1.5	2	6.5	10	11	1.7	1.7	6.5	12	13	1.2	1.7
M8	9	13	14	5	5.6	9	13	14	1.5	2.1	-	-	-	-	-	-	-	-	-	-
M10	11	16	17.5	6	6.8	11	16 (15)	17.5 (16.5)	1.5	2.3	-	-	-	-	-	-	-	-	-	-
M12	14	18	20	7	8	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

Further specifications can be found under the tab More Information.

Supplementary Article

Washers

Flachkopfschraube - Flachkopfschrauben - Schrauben mit flachem Kopf - Schraube mit flachem Kopf - Schrauben mit niedrigem Kopf - Schraube mit niedrigem Kopf

Nuts

Inserts

Mounting Plates and Brackets

Anaerobic Adhesive

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry

Part Number:

3D preview is not available, because the part number has not yet been determined.

In order to open the 3D preview, the part number must be fixed.

Plug-in is required for 3D Preview

CAD Download

Data to be displayed: 30; 45; 60

Part Number
CBSM5-20

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	[M] Diameter (Screw Thread) Nominal	[L] Length (mm)	Material	Surface Treatment	[P] Pitch (mm)	Additional Shape	Strength Class (Steel)	Sales Unit	Application	Material Certificate	Material Certificate: Material	Material Certificate: Material (Note)	Screw M Diameter	Size (X Notation) (mm)	Size (- Notation) (mm)	Standard Name (Material)
	1.25 €	1	Available	5 Days	10	5	20	[Steel] EN 1.7220 Equiv.	Bright Chrome Plating	0.8	-	10.9	Low Quantity (Available beginning with 1 pc.)	-	-	-	-	-	-	-	-

Back to the Category Flat Head Screws/Low Head Screws

Technical Drawing - Flat Head Screws

Specification Tables - Flat Head Screws

Overview of screws as PDF

Type	M × P	A	B	t max.	(e) max.	r	T
CBSS	2 × 0.4	4	1.3	1.2	1.2	0.1 or More	1.1
	2.5 × 0.45	5	1.3	1.5	1.5		1.3
	3 × 0.5	6	1.5	2	1.6		1.3
	4 × 0.7	8	2	2.5	1.6	0.2 or More	1.5
	5 × 0.8	9	3	3	2	0.2 or More
	6 × 1.0	10	3	4	2.5	0.25 or More
	8 × 1.25	13	4	5	3	0.4 or more
	10 × 1.5	16	5	6	3.5	0.4 or more
CBSA	2 × 0.4	4	1.3	1.2	1.2	0.1 or More	1.1
	2.5 × 0.45	5	1.3	1.5	1.5		1.3
	3 × 0.5	6	1.5	2	1.6		1.3
	4 × 0.7	8	2	2.5	1.6	0.2 or More	1.5
	5 × 0.8	9	3	3	2	0.2 or More
	6 × 1.0	10	3	4	2.5	0.25 or More
	8 × 1.25	13	4	5	3	0.4 or more
	10 × 1.5	16	5	6	3.5	0.4 or more
CBSR	3 × 0.5	6	1.5	2	1.6	0.1 or More	1.3
	4 × 0.7	8	2	2.5	1.6	0.2 or More	1.5
	5 × 0.8	9	3	3	2	0.2 or More
	6 × 1.0	10	3	4	2.5	0.25 or More
	8 × 1.25	13	4	5	3	0.4 or more

Type	M × P	A	B	t max.	(e) max.	r	T
CBSTS	2 × 0.4	4	1.3	1.2	1.2	0.2 or More	1.1
	2.5 × 0.45	5	1.3	1.5	1.5		1.3
	3 × 0.5	6	1.5	2	1.6		1.5
	4 × 0.7	8	2	2.5	1.6
	5 × 0.8	9	3	3	2
	6 × 1.0	10	3	4	2.5
	8 × 1.25	13	4	5	3
	10 × 1.5	15	5	6	3.5
BOX-CBSTS	2 × 0.4	4	1.3	1.2	1.2	0.2 or More	1.5
	2.5 × 0.45	5	1.3	1.5	1.5		1.5
	3 × 0.5	6	1.5	2	1.6		1.3
	4 × 0.7	8	2	2.5	1.6		1.5
	5 × 0.8	9	3	3	2
	6 × 1.0	10	3	4	2.5
	8 × 1.25	13	4	5	3
	10 × 1.5	15	5	6	3.5
PACK-CBSTS	2 × 0.4	4	1.3	1.2	1.2	0.2 or More	1.5
	2.5 × 0.45	5	1.3	1.5	1.5
	3 × 0.5	6	1.5	2	1.6
	4 × 0.7	8	2	2.5	1.6
	5 × 0.8	9	3	3	2
	6 × 1.0	10	3	4	2.5
	8 × 1.25	13	4	5	3
	10 × 1.5	15	5	6	3.5

Thread	A Dimension Tolerance
	CBSS CBSA	CBSR	CBSTS BOX−CBSTS PACK-CBSTS
M2	+0.18 to -0.3	-	+0 to -0.3
M2.5		-
M3		+0 to -0.3	+0.1 to -0.3
M4	+0.02 to -0.36	+0 to -0.36
M5
M6	+0.27 to -0.43	+0 to -0.43
M8			+0 to -0.35
M10		-

Thread	T Dimension Tolerance
	CBSS CBSA	CBSR	CBSTS BOX−CBSTS PACK-CBSTS
M2	±0.07	-	±0.07
M2.5		-
M3		±0.07	+0 to -0.15
M4	+0.1 to -0.14	+0 to -0.14
M5
M6
M8			+0 to -0.14
M10		-

Thread	B Dimension Tolerance
Thread	CBSS CBSA	CBSR	CBSTS BOX−CBSTS PACK-CBSTS
M2	+0.01 to -0.03	-	+0.01 to 0.03
M2.5	+0.01 to -0.03	-	+0.01 to 0.03
M3	+0.08 to +0.02	+0.06 to +0.02	+0.08 to +0.02
M4		+0.08 to +0.02
M5
M6
M8	+0.095 to +0.02	+0.095 to +0.02	+0.095 to +0.02
M10	+0.14 to +0.02	-	+0.14 to +0.02

L Dimension Tolerance
3 to 6	±0.24
8 to 10	±0.29
12 to 18	±0.35
20 to 30	±0.42

No Thread Locking Compound, Available in Single item

Part Number
Type	M－L
CBSS CBSA CBSR CBSTS	2－ 3
	4
	5
	6
	8
	10
	12
	2.5－ 3
	4
	5
	6
	8
	10
	12
	3－ 4
	5
	6
	8
	10
	12
	14
	16
	4－ 5
	6
	8
	10
	12
	14
	16
	18
	20
	5－ 6
	8
	10
	12
	14
	16
	18
	20
	25
	6－ 6
	8
	10
	12
	14
	16
	18
	20
	25
	30
	8－ 6
	8
	10
	12
	14
	16
	18
	20
	25
	30
	10－ 10
	12
	14
	16
18
20
25
30

No Thread Locking Compound (Available in Box)

Part Number		Pcs./ Box.
Type	M－L	Pcs./ Box.
BOX－CBSTS (Stainless Steel)	3－ 5	500 pcs./box
	6
	8
	10
	12
	4－ 5
	6
	8
	10
	12
	16
	5－ 6
	8
	10
	12
	16
	20
	6－ 8
	10
	12
	16
	20
	25
	8－10	200 pcs./box
	12
	16
	20
	25
	10－16
	20
	25	150 pcs./box

Thread Locking Compound, Package Sale (10 pcs.), EN 1.4567 Equiv. only

Part Number			Treatment Symbol	(a)	(b)
Type	M−L		Treatment Symbol	(a)	(b)
PACK− CBSTS	3−	4	YBM	Fully Threaded Section	0
		5
		6
		8
		10
		12		3	2
	4−	5		Fully Threaded Section	0
		6
		8
		10
		12		4	2
		14
		16
	5−	6		Fully Threaded Section	0
		8
		10
		12		5	2
		14
		16
		20
	6−	8		Fully Threaded Section	0
		10		Fully Threaded Section	0
		12		6	2
		14
		16
		20
		25

■Features of screws with thread locking compound

· Eliminates the need for manual adhesive application, reducing labor hours.
· There are no variations in the applied amount or misapplications due to worker error, leading to consistency and improvements in quality.
· Excellent chemical and heat resistance.
· The viscosity and application width are set so that screws can be unfastened.

■Cautions for use of screws with thread locking compound

[ ! ] The adhesive is encased in a micro capsule.
　Use within 8 months of delivery.
[ ! ] For effective thread locking, leave the screws for 72 hours or more after fastening.
[ ! ] Can be used in temperatures from -40°C to 150°C.
[ ! ] Avoid direct sunlight and moisture, and store at as low a humidity as possible.
Please be aware that contact with oil will reduce performance.

Products homepage

Basic information

Detailed Shape	Extra Low Head	Mounting Hole Shape	Hex Socket	Thread Type	Regular (Metric)
Basic Shape	Standard (Round)

Configure

1Suggestion of an applicable part number.

View Part Numbers

Some specification is not specified yet.

The part number is completed.

Basic Attributes

Additional Shape
- Threadlocker Adhesive Applied
Clear
Application
- Standard
Clear
Type
- BOX-CBSTS
- CBSA
- CBSM
- CBSR
- CBSS
- CBSTS
- PACK-CBSTS
Clear
[M] Diameter (Screw Thread) Nominal
2

2.5

3

4

5

6

8

10
Clear
[L] Length(mm)
3

4

5

6

8

10

12

14

16

18

20

25

30
Clear
Material
- Steel
  - EN 1.7220 Equiv.
- Stainless Steel
  - EN 1.4567 Equiv.
Clear
Surface Treatment
- Not Provided
- Black Oxide
- Trivalent Chromate
  - Trivalent Chromate
- Bright Chrome Plating
- LTBC Plating
- Threadlocker Adhesive Applied
Clear
[P] Pitch(mm)
0.4

0.45

0.5

0.7

0.8

1

1.25

1.5
Clear
Strength Class (Steel)
10.9
Clear
Sales Unit
Low Quantity (Available beginning with 1 pc.)

Box, Pkg.
Clear
Filter by CAD data type
- 2D
- 3D
Clear

Filter by standard shipping days

All

Same day

5 Days or Less

9 Days or Less
Reset

Optional Attributes

The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently Asked Questions (FAQ)

Question:
Do you have any belt pulleys without a hole?: Answer:
The MISUMI toothed pulleys always have a pilot bore. It is expanded depending on your configuration. It provides the advantage that the belt pulleys are already provided with a suitable shaft bore ready for installation. Therefore, it does not require time-consuming post-processing.
Question:
Do you have timing pulleys made of aluminum?: Answer:
The MISUMI online shop also offers timing pulleys or toothed pulleys in aluminum. Furthermore, we are also offering belt pulleys in steel and stainless steel. The return rollers and idler pulleys for the timing belts are also available in plastic.
Question:
Is a transmission with toothed belt pulleys possible?: Answer:
With toothed pulleys, a gear ratio is possible in a drive. The gear ratio is established based on the number of teeth on the belt pulleys. It should be ensured that the minimum number of teeth of the timing pulley disc is not undercut.
Question:
Which type of the toothed belt pulley can be clamped during assembly?: Answer:
There are a number of ways to install timing pulleys on a shaft. For applications that are not exposed to high torque, such as conveyors, it can be sufficient to fasten a timing pulley using clamping threaded pins. For this purpose, the shaft should have a flat surface.
For higher loads, a toothed pulley with a keyway can also be used.
A further variant is the fastening of a timing pulley via a conical chip sleeve. Depending on the type of Mecha lock, the timing pulley requires lateral internal threads, which can be added through additional options in the MISUMI online shop.
A timing pulley with a bore hole can also be combined with a Mech lock. MISUMI is offering this combination as a set.
Question:
Where do you position the tension roller?: Answer:
If an idler pulley should be utilised, it should be positioned on the sag side. This means that the idler pulley is attached to the side not subjected to pull.
Ideally, a toothed idler pulley is mounted on the inside of the toothed belt. The tensioning roller should always be larger than the smallest toothed idler pulley of the belt drive system.
If an idler pulley must tension the toothed belt from the outside, then a non-toothed (flat) idler pulley should be used. Cantilever pins, which MISUMI offers in various geometric versions, are suitable for fastening.
Question:
Which parallel key can be used for the toothed pulleys?: Answer:
The parallel key size is based on the shaft diameter. In this case, it is recommended using the MISUMI parallel keys, as they fit better when MISUMI toothed pulleys are used. See Overview available as PDF for keyway tolerances.
Question:
Is a timing pulley with a round profile better?: Answer:
Timing pulleys and round-profile timing belts are not recommended for every application. For example, the round profile shape is well suited for applications that require high positioning accuracy. Therefore, they are often used in 3D printers and scanners. Compared to other profile shapes, the round profile shape has a higher wear resistance. Another advantage of the round profile shape is the minimized play in the return (reverse play).
Question:
Which belt pulley is suitable for Gates toothed belts?: Answer:
The GT and EV timing pulleys are suitable for Gates’ toothed belts. However, these require you put attention to the slope (distance of the teeth) of the toothed belt. It must be checked whether these correspond to the selected toothed pulley.
Question:
Are the curtain discs necessary for the toothed pulleys?: Answer:
It is recommended using the smaller belt pulleys particularly with curb disc. The curb disk ensures that the toothed belt does not migrate down from the toothed belt pulley. Even with the smallest misalignment of a pulley, there may be a risk that the toothed belt will move and jump during operation.
Question:
How is the gearing of the toothed pulleys manufactured?: Answer:
The gear teeth of the MISUMI toothed belt pulley are mainly pushed. This ensures high manufacturing accuracy. As a result, the teeth fit precisely into the toothed belt profile of the timing belts and ensure optimal power and torque transmission.