Spur gears / with pin bore / contact angle 20 degrees (Part Numbers - CAD Download)

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GEAHF0.8-45-5-B-6

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Technical Drawing - Spur Gears

Spur Gears/Pilot Hole/Pressure Angle 20Deg.:Related Image

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

Basic Properties (e.g., material, hardness, coating, tolerance) - Spur Gears

Type	Material	Surface Treatment
GEAHF	EN 1.1191 Equiv.	Black Oxide

Further specifications can be found under the tab More Information.

Composition of a Product Code - Spur Gears

Part Number	-	Number of Teeth	-	B	-	Gear Shape	-	Shaft Bore Dia.
GEAHF1.0	-	40	-	10	-	B	-	8

General Information - Spur Gears

Spur gears - front gear with through hole - spur gear with spring pin - spur gear made of brass - brass pinion - plastic - spur gear with ball bearing

Selection details of spur gears

- Material: steel, stainless steel, sintered steel, nylon, polyacetal, brass, aluminum, cast iron

- Coatings: burnished, nickel-plated

- Heat treatment: induction hardened

- Shaft diameter tolerances: H7, H8

- Tooth flank clearance: N5, N7, N8, N9, N12

- Module: 0.3, 0.5, 0.75, 0.8, 1, 1.25, 1.5, 2, 2.5, 3, 4, 4.5, 5, 6, 8, 10, 15, 20

- Pressure angle: 20°

- Shaft diameter: 2 mm to 50 mm

- Number of teeth: 8 to 200

- Tooth width: 2 mm to 90 mm

Description/Basics

The spur gears offered are generally machine elements that serve the non-slip transmission of force, movement transmission or movement change. The teeth of the cylinder wheels grip each other during transmission and largely roll over the tooth flanks. The tooth shape of the spur gear is convexly shaped in the shaped tooth system. At the beginning of the intervention, a rolling resistance acts on the tooth flank, which becomes a sliding friction in the course of the rotation.

A combination of gear wheels and rack gears is useful in the construction of rack gear. This allows motor rotary motion or other rotary motion to be converted into linear motion. rack gear boxes are theoretically possible in an endless assembly. Limits here only set the length of the rack gears for the rack gear drive.

Gear wheels with straight gearing are particularly suitable for the construction of gearboxes. The advantage of straight gearing as opposed to helical gears, is the possibility of transmitting a higher torque. It should be noted that with increasing speed within the transmission ratio or reduction, the torque to be transmitted decreases.

When designing spur gear pairs, the ratio of the gear ratio (number of teeth) and the module of the respective gear wheels must be observed.
The backlash is another important factor that must be considered during construction. Reverse play is understood as the result of the play that the change in the direction of rotation of a single gear wheel pair between the teeth. The risk of reverse play can be reduced if either the diameter or the number of teeth of the cogwheel pairing do not deviate too much from one another. If high wear is to be expected due to the pairing of gears, the MISUMI online shop offers gears with a hardened key-type.

For applications with the same rotational direction, it is possible to use an intermediate gear with integrated bearing on a cantilever shaft. The bearing number used can be found under the tab More Information. An overview of tolerances and permissible radial bearing deviations can be found in the following PDF.

In addition to gear wheels, MISUMI also offers suitable rotary shafts for the construction of a transmission. The straight front wheels can be assembled on these and secured with a set screw or machine keys (key with adjusting screw). This PDF provides an overview of the configurable mountings for the shaft rotation and keyway tolerances.
The continuous adjusting of a spur gear can be realized, among other things, by means of a clamping sleeve. The MISUMI online shop offers spur gears with clamping sleeve. Alternatively, we also offer individual keyless bushing that you can customize to your needs.

Application Examples - Spur Gears

Application example: workpiece transport - spur gear - rack gear - roller bearings - workpiece

Application example - spur gear with rack gear
(1) Spur gear, (2) Clamping knobs, (3) Rack gear

Application example: rack gear - spur gear with rack gear - handle - rotary handle

Application example - spur gear
(1) Spur gear, (2) Workpiece, (3) Rollers

Industrial Applications

3D printer industry

Automotive industry

Pharmaceutical industry

Packaging industry

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Part Number
GEAHF0.8-45-5-B-6

Part Number

Part Number	Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Number of Teeth (Teeth)	Tooth Width B (mm)
	12.13 € 8.13 €	1	Available	Same day Stock	10	45	5

Standard Unit Price

Minimum order quantity

Volume Discount

Standard
Shipping Days
?

RoHS

Number of Teeth
(Teeth)

Tooth Width B
(mm)

12.13 €

8.13 €

Available

Same day

Back to the Category Spur Gears

Technical Drawing - Spur Gears

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Specification Tables - Spur Gears

■Module 0.5 / 0.8 / 1.0 (For shaft bore free dimension parts, see P.1501 ~ P.1512; For configuration of the tooth width/hub dimensions, see P.1513.)

Part Number		Number of Teeth	B	Gear Shape	Shaft Bore Dia. P_H7	d Reference Dia.	D Tip Dia.	G Root Dia.	H	L	ℓ₁	Unit Price
Type	Module	Number of Teeth	B	Gear Shape	Shaft Bore Dia. P_H7	d Reference Dia.	D Tip Dia.	G Root Dia.	H	L	ℓ₁	Unit Price
GEAHF	0.5	28	3	B	3	14	15	12.75	10	8	5
		30				15	16	13.75
		32				16	17	14.75
		35				17.5	18.5	16.25
		36				18	19	16.75
		40	2		3	20	21	18.75	10	7	5
		42				21	22	19.75
		45				22.5	23.5	21.25
		48				24	25	22.75
		50				25	26	23.75
		52	2		5	26	27	24.75	20	7	5
		60				30	31	28.75
		70				35	36	33.75
		80				40	41	38.75
		100				50	51	48.75
	0.8	20	7		4	16	17.6	14	10	14	7
		24	7		5	19.2	20.8	17.2	12.5	14	7
		25				20	21.6	18
		28				22.4	24	20.4
		30				24	25.6	22
		32	5		5	25.6	27.2	23.6	12.5	14	9
		36	5		6	28.8	30.4	26.8	14	14	9
		40				32	33.6	30
		45				36	37.6	34
		48				38.4	40	36.4
		50				40	41.6	38
	1.0	20	12		6	20	22	17.5	16	20	8
		21	12		6	21	23	18.5	18	20	8
		22	12		6	22	24	19.5	18	20	8
		23	12		6	23	25	20.5	20	20	8
		24				24	26	21.5
		25				25	27	22.5
		26	12		6	26	28	23.5	22	20	8
		27	12		6	27	29	24.5	24	20	8
		28	12		8	28	30	25.5	24	20	8
		29	12		6	29	31	26.5	26	20	8
		30	12		8	30	32	27.5	27	20	8
		32	10		8	32	34	29.5	28	20	10
		34	10		8	34	36	31.5	28	20	10
		35	10		8	35	37	32.5	30	20	10
		36				36	38	33.5
		38				38	40	35.5
		40				40	42	37.5
		42				42	44	39.5
		44				44	46	41.5
		45				45	47	42.5
		46				46	48	43.5
		48	10		8	48	50	45.5	44	20	10
		50	10		8	50	52	47.5	46	20	10
		52				52	54	49.5
		54				54	56	51.5
		55				55	57	52.5
		56				56	58	53.5
		58				58	60	55.5
		60	10		10	60	62	57.5	50	20	10
		62				62	64	59.5
		64				64	66	61.5
		65				65	67	62.5
		66				66	68	63.5
		68				68	70	65.5
		70	10		10	70	72	67.5	56	20	10
		72				72	74	69.5
		75				75	77	72.5
		80	10		10	80	82	77.5	60	20	10
84		84		86		81.5
85		85		87		82.5
90		90		92		87.5
95		95		97		92.5
96		96		98		93.5
100		10	16	100	102	97.5
110		10	16	110	112	107.5	70	20	10
120		10	16	120	122	117.5	70	20	10

■Module 1.5 / 2.0 / 2.5 / 3.0 (For parts with selectable shaft bore dimension, see P.1501 ~ P.1512; For confguration of the tooth width/hub dimensions, see P.1513.)

Part Number		Number of Teeth	B	Gear Shape	Shaft Bore Dia. PH7	d Reference Dia.	D Tip Dia.	G Root Dia.	H	L	ℓ₁	Unit Price
Type	Module	Number of Teeth	B	Gear Shape	Shaft Bore Dia. PH7	d Reference Dia.	D Tip Dia.	G Root Dia.	H	L	ℓ₁	Unit Price
GEAHF	1.5	20	15	B	6	30	33	26.25	25	27	12
		21				31.5	34.5	27.75	25
		22				33	36	29.25	26
		23				34.5	37.5	30.75	27
		24				36	39	32.25	30
		25				37.5	40.5	33.75	30
		26				39	42	35.25	32
		27				40.5	43.5	36.75	34
		28				42	45	38.25	34
		29				43.5	46.5	39.75	35
		30				45	48	41.25	35
		32				48	51	44.25	40
		34				51	54	47.25
		35				52.5	55.5	48.75
		36				54	57	50.25
		38				57	60	53.25	45
		40			8	60	63	56.25
		42				63	66	59.25
		44				66	69	62.25
		45				67.5	70.5	63.75
		46				69	72	65.25
		48				72	75	68.25	50
		50				75	78	71.25
		52				78	81	74.25
		54			12	81	84	77.25
		55				82.5	85.5	78.75
		56				84	87	80.25
		58				87	90	83.25
		60				90	93	86.25	55
		62				93	96	89.25
		64				96	99	92.25
		65				97.5	100.5	93.75
		66				99	102	95.25
	2.0	21	20		8	42	46	37	34	34	14
		22				44	48	39	36
		23				46	50	41	37
		24				48	52	43	40
		25				50	54	45	40
		26				52	56	47	42
		27				54	58	49	45
		28				56	60	51	45
		29				58	62	53	47
		30				60	64	55	48
		32				64	68	59	50
		34			10	68	72	63	50
		35				70	74	65	52
		36				72	76	67	55
		38				76	80	71	55
		40				80	84	75	60
		42				84	88	79
		44				88	92	83
		45				90	94	85
		46				92	96	87
	2.5	20	25		8	50	55	43.75	40	41	16
		21				52.5	57.5	46.25	42
		22				55	60	48.75	44
		23				57.5	62.5	51.25	46
		24				60	65	53.75	48
		25				62.5	67.5	56.25	50
		26				65	70	58.75	55
		27				67.5	72.5	61.25	60
		28				70	75	63.75	60
		29				72.5	77.5	66.25	62
		30				75	80	68.75	65
32		80		85		73.75	70
34		10		85	90	78.75
35				87.5	92.5	81.25
36				90	95	83.75	75
3.0	20	30	8	60	66	52.5	50	48	18
	21			63	69	55.5	52
	22			66	72	58.5	54
	23			69	75	61.5	56
	24			72	78	64.5	58
	25			75	81	67.5	60
	26		10	78	84	70.5	65
	27			81	87	73.5	65
	28			84	90	76.5	70
	29			87	93	79.5	70
	30			90	96	82.5	75

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Basic information

Material (Details)	General Steel Material	Shape	Shape B	Surface Treatment	Black Oxide
Ground Tooth	Not Provided	Backlash	Provided	Precision(Old JIS)	JIS B 1702 (Class 4)
Hole Shape	Round Hole

This page is Spur gears / with pin bore / contact angle 20 degrees, part number GEAHF0.8-45-5-B-6.
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Basic Attributes

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Number of Teeth(Teeth)
20

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29

30

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34

35

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38

40

42

44

45

46

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55

56

58

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62

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65

66

68

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72

75

80

84

85

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95

96

110

120
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2

3

5

7

10

12

15

20

25

30
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The specifications and dimensions of some parts may not be fully covered. For exact details, refer to manufacturer catalogs .

Frequently Asked Questions (FAQ)

Question:
Can different modules be combined with each other?: Answer:
Since the module describes the division of the teeth along the pitch circle diameter, various modules cannot be combined into one pair of gears.
Question:
What is involute gearing?: Answer:
Evolved gearing is understood to be the convex production of a tooth flank. The sliding friction along the tooth flank can thus be minimized. This also reduces wear and tear.
Question:
What is the pressure angle?: Answer:
The pressure angle is defined as the angle of the highest drive force between two gears. A combination of different pressure angles is not recommended, since increased wear is to be expected.
Question:
Is the position of the keyway to the key-type specified?: Answer:
The keyway has no specified position reference to the tooth base or the head surface of the sprocket.
Question:
What is the reverse clearance?: Answer:
The reverse play arises at the moment of the direction of rotation of a spur gear pairing is changed. It describes the gap between the gear flanks of each tooth in engagement.

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Variation of this product

Part Number
GEAHF0.5-35-3-B-3
GEAHF0.5-36-3-B-3
GEAHF0.5-40-2-B-3
GEAHF0.8-48-5-B-6
GEAHF0.8-50-5-B-6
GEAHF1.0-110-10-B-16

Standard Unit Price	Minimum order quantity	Volume Discount	Standard Shipping Days ?	RoHS	Number of Teeth (Teeth)	Tooth Width B (mm)
7.70 €	1	Available	5 Days	10	35	3
7.70 €	1	Available	5 Days	10	36	3
8.10 €	1	Available	5 Days	10	40	2
12.52 €	1	Available	5 Days	10	48	5
12.91 €	1	Available	5 Days	10	50	5
27.20 €	1	Available	5 Days	10	110	10