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Automation Components
Rotary Power Transmission
Gears
Spur Gears
Spur Gears / Contact Angle 20 Degrees / Module 1.5
GEAB1.5-20-10-B-[6-16/1]

Condiciones del filtro

Number of Teeth(Teeth)
- 20
Material (Details)
General Steel Material
EN 1.1191 Equiv.
Surface Treatment
- Not Provided
Shaft Bore Dia.(Ø)
[6-16/1Ø unidades]
Tooth Width B(mm)
- 10
Type
- GEAB1.5
CAD
- 2D
- 3D
Días estimados de envío
- Todo
- En el plazo de 7 días laborables

Opciones adicionales

Set Screw Machining [KC](°)
- 90
- 120
Tapped Hole Dimension Change [TPC](mm)
- 3
- 5
Tapping on Side [QFC](mm)
[13-18/1mm unidades]
Side Tapped Hole(QFC)
[13-18/1]
Tapping on Side [QTC](mm)
[13-18/1mm unidades]
Tap Dia. [M](mm)
- 3
- 4
Through Hole Machining on Side [KFC](mm)
[13-18/1mm unidades]
Through Hole Machining on Side [KTC](mm)
[13-18/1mm unidades]
Through Hole Dia. [K](mm)
[3-6/0.5mm unidades]
Add Tapped Holes(4) on Side [QFC](PCD)(mm)
[13-18/1mm unidades]
Add Slot/Tapped Holes on Side [M](Hole Size)
- 3
- 4
[KFC]Side Through Hole (4 Locations)(mm)
[13-18/1mm unidades]
[KTC]Side Through Hole (3 Locations)(mm)
[13-18/1mm unidades]
[K]Side Through Hole (Hole Dia.)(mm)
[3-6/0.5mm unidades]
[QTC]Side Tapped Hole (3 Locations)(mm)
[13-18/1mm unidades]
[M]Side Tap Dia. [For QFC/QTC]
- 3
- 4
[LL] [RR]Hole Machining Datum Plane Specification
- LL
- RR
Add Thru Holes(3) on Side [KTC](PCD)(mm)
[13-18/1mm unidades]
Select Left Side for Counterbore Holes [LL]
- LL
Add Thru Holes(4) on Side [KFC](PCD)(mm)
[13-18/1mm unidades]
Select Right Side for Counterbore Holes [RR]
- RR
Add Thru Holes on Side [K](Hole Size)(mm)
[3-6/0.5mm unidades]
Specify Hub Length on Shape B [BS](mm)
- 0
[7-11.5/0.5mm unidades]
Add Tapped Holes(3) on Side [QTC](PCD)(mm)
[13-18/1mm unidades]

MISUMI

Spur Gears / Contact Angle 20 Degrees / Module 1.5 (GEAB1.5-20-10-B-[6-16/1])

CatálogoP.1-1505

Número de pieza:

GEAB1.5-20-10-B-[6-16/1]

Despejar

Plano de contorno y tabla de especificaciones
Lista de números de pieza
Información detallada
Catálogo

Plano de contorno y tabla de especificaciones

Dimensional Drawing

Gear Shape

Shape K

Shape A

[NG] Tapped shaft bores are not available for Shape A

Shape B

Shaft Bore Specifications (Selectable Gear Shapes)
Straight Bore (Shape A, Shape B, Shape K)	Straight Bore + Tap (Shape B, Shape K)

Keyway (Shape A)	Keyway + Tap (Shape B, Shape K)

[!] Relative positioning of keyway and teeth is not fixed.
　　To match, specify GBA for alteration.
Tooth surface accuracy Equivalent to the new JIS B 1702-1 Class 8
(Old JIS B 1702 Class 4)

Keyway Dimensional Tolerance

T Dim. Tolerance (H7)

Nominal	P_H7
8 N to 10K	+0.015 　0
11 N to 18 N	+0.018 0
19 N to 30 N	+0.021 0
31 N to 50 N	+0.025 0

[ ! ] Compliant with JIS B 0401-2.

Keyway Dimensional Tolerance

Nominal	b_JS9		t
8 N to 10 N	3	±0.0125	1.4	+0.1 0
10K to 12 N	4	±0.0150	1.8
13 N to 17 N	5		2.3
18 N to 22 N	6		2.8
23 N to 30 N	8	±0.0180	3.3	+0.2 0
31 N to 38 N	10	±0.0180
39 N to 44 N	12	±0.0215
45 N to 50 N	14	±0.0215	3.8

[ ! ] Compliant with JIS B 1301.

Unspecified Dimension Tolerance (Other than the teeth)

Dimension Range		Tolerance (mm)
Over	or Less	Tolerance (mm)
0.5	3	±0.1
3	6	±0.1
6	30	±0.2
30	120	±0.3
120	400	±0.5

[ ! ] Compliant with JIS B 0405 Class m (intermediate).

Type			[M] Material	[S] Surface Treatment	[A]Accessory
Straight Bore	Straight Bore + Tap	Keyway, Keyway + Tap	[M] Material	[S] Surface Treatment	[A]Accessory
GEAHB	GEAB	GEAKB	EN 1.1191 Equiv.	—	Set Screw (Cup Point) (EN 1.7220 Equiv., Black Oxide)
GEAHBB	GEABB	GEAKBB		Black Oxide
GEAHBG	GEABG	GEAKBG		Electroless Nickel Plating
GEAHS	GEAS	GEAKS	EN 1.4301 Equiv.	—	Set Screw (Cup Point) (EN 1.4301 Equiv.)

[ ! ] The set screw is not included only for shaft bore specification "Straight Bore."
[ ! ] The set screw is included for shaft hole specification "Tapped."
[!] Selectable Gear Shapes differ depending on the number of teeth. Check the spec. table.

Specification Table

Part Number	—	Number of Teeth	—	B	—	Gear Shape	—	P
GEAB1.5 GEAKBG1.5 GEAS1.5	— — —	20 30 12	— — —	15 15 15	— — —	B A K	— — —	8 10 N 8

Part Number		Number of Teeth	B	Gear Shape	Shaft Bore Dia. P_H7 Unit: mm		d Reference Circle Dia.	D Addendum Circle Dia.	G Dedendum Circle Dia.	H	L	ℓ₁	ℓ₂	M (Coarse)	* 1 Allowable Transmission Force (N⋅m) Bending Strength
Type	Module	Number of Teeth	B	Gear Shape	Straight Bore Straight Bore + Tap	Keyway Keyway + Tap	d Reference Circle Dia.	D Addendum Circle Dia.	G Dedendum Circle Dia.	H	L	ℓ₁	ℓ₂	M (Coarse)	S45C Equivalent	SUS304
Straight Bore (Shape A, Shape B, Shape K) GEAHB GEAHBB GEAHBG GEAHS Straight Bore + Tap (Shape B, Shape K) GEAB GEABB GEABG GEAS Keyway (Shape A) Keyway + Tap (Shape B) GEAKB GEAKBB GEAKBG GEAKS	1.5	12	15	A K	6 to 12	8 N	18	21	14.25	21	30	15	4	M4	8.33	4.75
		13	15	A K	6 to 13		19.5	22.5	15.75	22.5	30	15			9.55	5.45
		14	10 15	A B	6 to 8		21	24	17.25	16	19 (B=10) 24 (B=15)	9			7.21	4.11
		15			6 to 12	8 N to 12 N 10K	22.5	25.5	18.75	18					8.06	4.60
		16					24	27	20.25	20					8.93	5.09
		17					25.5	28.5	21.75	21					9.81	5.60
		18			6 to 13		27	30	23.25	22	22 (B=10) 27 (B=15)	12	5		10.71	6.11
		19			6 to 15		28.5	31.5	24.75	24					11.61	6.63
		20			6 to 16		30	33	26.25	25					12.53	7.15
		21			6 to 16		31.5	34.5	27.75	25					13.45	7.68
		22			6 to 17		33	36	29.25	26					14.39	8.21
		23			6 to 18	8 N to 13 N・10K	34.5	37.5	30.75	27					15.33	8.75
		24			6 to 20	8 N to 15 N・10K	36	39	32.25	30					16.29	9.29
		25			6 to 20	8 N to 15 N・10K	37.5	40.5	33.75	30				M5	17.24	9.84
		26			6 to 22	8 N to 17 N・10K	39	42	35.25	32					18.20	10.39
		27			6 to 23	8 N to 19 N・10K	40.5	43.5	36.75	34					19.17	10.94
		28			6 to 23	8 N to 19 N・10K	42	45	38.25	34					20.15	11.49
		29			6 to 24	8 N to 19 N・10K	43.5	46.5	39.75	35					21.12	12.05
		30			6 to 24	8 N to 19 N・10K	45	48	41.25	35					22.10	12.61
		32			6 to 28	8 N to 24 N・10K	48	51	44.25	40					24.08	13.74
		33					49.5	52.5	45.75						25.07	14.31
		34					51	54	47.25						26.07	14.88
		35					52.5	55.5	48.75						27.07	15.45
		36					54	57	50.25						28.07	16.02
		38			6 to 33	8 N to 30 N・10K	57	60	53.25	45					30.10	17.17
		39			6 to 33	8 N to 30 N・10K	58.5	61.5	54.75						31.11	17.75
		40			8 to 33	10 N to 30 N・10K	60	63	56.25						32.13	18.33
		42					63	66	59.25						34.16	19.49
		44					66	69	62.25						36.21	20.66
		45					67.5	70.5	63.75						37.23	21.25
		46					69	72	65.25						38.26	21.83
		48			8 to 38	10 N to 33 N・10K	72	75	68.25	50					40.32	23.01
		49					73.5	76.5	69.75						41.35	23.60
		50					75	78	71.25					M6	42.39	24.19
		51					76.5	79.5	72.75						43.41	24.77
		52					78	81	74.25						44.45	25.36
		54			12 to 38	12 N to 33 N	81	84	77.25						46.52	26.55
		55					82.5	85.5	78.75						47.57	27.15
		56					84	87	80.25						48.62	27.75
		57					85.5	88.5	81.75						49.65	28.33
		58					87	90	83.25						50.69	28.93

Part Number		Number of Teeth	B	Gear Shape	Shaft Bore Dia. P_H7 Unit: mm		d Reference Circle Dia.	D Addendum Circle Dia.	G Dedendum Circle Dia.	H	L	ℓ₁	ℓ₂	M (Coarse)	* 1 Allowable Transmission Force (N⋅m) Bending Strength
Type	Module	Number of Teeth	B	Gear Shape	Straight Bore Straight Bore + Tap	Keyway Keyway + Tap	d Reference Circle Dia.	D Addendum Circle Dia.	G Dedendum Circle Dia.	H	L	ℓ₁	ℓ₂	M (Coarse)	S45C Equivalent	SUS304
Straight Bore (Shape A, Shape B, Shape K) GEAHB GEAHBB GEAHBG GEAHS Straight Bore + Tap (Shape B, Shape K) GEAB GEABB GEABG GEAS Keyway (Shape A) Keyway + Tap (Shape B) GEAKB GEAKBB GEAKBG GEAKS	1.5	60	10 15	A B	12 to 43	12 N to 37 N	90	93	86.25	55	22 (B=10) 27 (B=15)	12	5	M6	52.78	30.12
		62					93	96	89.25						54.89	31.32
		63					94.5	97.5	90.75						55.92	31.91
		64					96	99	92.25						56.99	32.52
		65					97.5	100.5	93.75						58.03	33.11
		66					99	102	95.25						59.07	33.71
		68					102	105	98.25						61.17	34.91
		69					103.5	106.5	99.75						62.23	35.51
		70			12 to 50	12 N to 44 N	105	108	101.25	65					63.29	36.11
		72					108	111	104.25						65.38	37.31
		75					112.5	115.5	108.75						68.56	39.12
		76					114	117	110.25						69.61	39.72
		77					115.5	118.5	111.75						70.68	40.33
		78					117	120	113.25						71.73	40.93
		80					120	123	116.25						73.84	42.13
		81					121.5	124.5	117.75						74.89	42.74
		84					126	129	122.25						78.07	44.55
		85					127.5	130.5	123.75						79.14	45.16
		88					132	135	128.25						82.35	46.99
		90					135	138	131.25						84.45	48.19
		91					136.5	139.5	132.75						85.53	48.81
		92					138	141	134.25						86.57	49.41
		95					142.5	145.5	138.75						89.78	51.23
		96					144	147	140.25						90.87	51.85
		98					147	150	143.25						92.97	53.05
		99					148.5	151.5	144.75						94.05	53.67
		100					150	153	146.25						95.11	54.27
		120			12 to 54	12 N to 47 N	180	183	176.25	70					116.52	66.49

[NG] Shaft bore diameter 9N is not available for Keyway Bore + Tap.
[!] Specify 10K as P dimension if keyway width of 4.0 mm (height 1.8 mm) for Keyway + Tap with shaft bore diameter of 10 is desired. [!] Shaft bore diameter 6.35 is available for Straight Bore and Straight Bore + Tap.
* 1 Allowable Transmission Forces in the table are reference values calculated by assuming a tooth width as 10 mm under the prescribed conditions.

Alterations

Set Screw Alteration

Tapped Hole Dimension Change

Root matching

Code

KC90·KC120

TPC

GBA

Spec.

KC90: Adds another set screw at 90° position.
KC120: Adds another set screw at 120° position.
A set screw is added.
Ordering Code KC90
Applicable Conditions [NG] Not applicable to Shape A [NG] Not applicable to Straight Bore Type
KC90 KC20

Changes the tapped hole dimension.
Ordering Code TPC4
Applicable Conditions [NG] Not applicable to Shape A [NG] Not applicable to Straight Bore Type
Standard Conditions [ ! ] ℓ₁ - ℓ₂ > TPC/2

Align the bottom of the gear tooth with the keyway and tap phase.
Phase Adjustment Tolerance ±0.3 (Reference Value)
Ordering Code GBA
Applicable Conditions [ ! ] Applicable to 19 teeth or more

M	TPC
M4	M3 M5
M5	M4 M6

Alterations

Stepped Hole

Both Ends Stepped Hole

Hub Cut

Code

DHL·DHR

WDH

Spec.

Changes shaft bores to stepped bores.
Dimension Increments Z: 1 mm Increments J: 0.1 mm Increments
Ordering Code DHL-Z20-4.0
Applicable Conditions [ ! ] Applicable only to Straight Bore Type [NG] Not applicable to Shape K
Standard conditions

·DHL	·DHR
[ ! ] Shape A P + 2 ≤ Z ≤ G－4, 2 ≤ J ≤ B－3	[ ! ] Shape A P + 2 ≤ Z ≤ G－4, 2 ≤ J ≤ B－3
[ ! ] Shape B P + 2 ≤ Z ≤ G - 4,2 ≤ J ≤ L - 3	[ ! ] Shape B P + 2 ≤ Z ≤ H−4, 2 ≤ J ≤ ℓ₁

Changes shaft bores to both ends stepped hole.
Dimension Increments Q, R, S, T: 1 mm Increments S, T ≥ 3
Ordering Code WDH-Q10-R10-S3-T3
Applicable Conditions [ ! ] Applicable only to Straight Bore Type [NG] Not applicable to Shape K
Standard conditions

·Shape A	· Shape B
[ ! ]P+2 ≤ Q,R ≤ G－4	[ ! ]P+2 ≤ Q,R ≤ H－4
[ ! ]S+T ≤ B－3	[ ! ] S + T ≤ L - 3 Shaft hole Dia. P is general tolerance

Cuts the hub length to the specified length.
Increments 0.5 mm
Ordering Code BS6.5
Applicable Conditions [NG] Not applicable to Shape A, K
Standard conditions
[!] Straight Bore: 0 ≤ BS ≤ ℓ₁
[!] Straight Bore + Tapped Type: BS=0;
M+3 ≤ BS ≤ ℓ₁
" ! " Keyway + Tapped Type: BS=0;
M+3 ≤ BS ≤ ℓ₁
[ ! ] If BS = 0, no tapped hole

Alterations

Retaining Ring Groove Dim.

Side Slotted Hole

Code

SRG

LFC·LTC

Spec.

Retaining Ring Groove applicable to the shaft dia. of stepped hole is machined.
Dimension Increments 3.5 to 0.5 mm
Ordering Code SRG7
Applicable Conditions
[ ! ] Applicable only to shaft bore specifications DHL and DHR
[ ! ] Standards of retaining ring groove for Z dim. is applied
Standard conditions
[ ! ] n ≤ J-SRG-m

■Retaining Ring Groove Dim.

					n (Min.)						n (Min.)
Z_H7	d₂	Tolerance	m	Tolerance	n (Min.)	Z_H7	d₂	Tolerance	m	Tolerance	n (Min.)
10	10.4	+0.11 0	1.15	+0.14 0	1.5	24	25.2	+0.21 0	1.35	+0.14 0	1.5
11	11.4					25	26.2
12	12.5					26	27.2
13	13.6					28	29.4
14	14.6					30	31.4	+0.25 0
15	15.7					32	33.7
16	16.8					35	37		1.65		2
17	17.8					37	39		1.65
19	20	+0.21 0				40	42.5		1.9
20	21					42	44.5
21	22					45	47.5
22	23					47	49.5
						52	55	+0.3 0	2.2	+0.14 0	2
						55	58
						60	63
						62	65
						68	71		2.7		2.5
						72	75
						80	83.5	+0.35 0

Machines slotted holes on the side surface (30°).
Dimension Increments LFC, LTC: 1 mm Increments
Select M M3, M4, M5, M6
Ordering Code LFC20-M3
Applicable Conditions
[ ! ] Applicable to Shape A only
Standard Conditions
[ ! ] P + C + 4 ≤ LFC (LTC) ≤ G - C- 4

M	C
M3	3.5
M4	4.5
M5	5.5
M6	6.5

Alterations

Side Through Hole

Side Tapped Hole

Side Counterbored

Code

KFC·KTC

QFC·QTC

ZFC·ZTC

Spec.

Machines through holes on the side surface.
Increments KFC, KTC: 1 mm Increments
K: 0.5 mm Increments
K selection K3.0 to K6.0
Ordering Code KFC20-K3.5
Applicable Conditions [NG] Not applicable to Shape K
Shape A
Standard Conditions [ ! ] P + K + 4 ≤ KFC (KTC) ≤ G - K - 4

Machines tapped holes on the side surface of the gear.
Dimension Increments QFC, QTC: 1 mm Increments
Select M M3, M4 [ ! ] Tapped hole depth M × 2.0
(When B < M × 2.0, through)
Machining datum plane selection is required for Shape B, L-side specification symbol LL,
R-side specification symbol RR
Applicable Conditions [NG] Not applicable to Shape K
Shape A
Ordering Code QFC25-M3
Standard Conditions [ ! ] P + M + 4 ≤ QFC (QTC) ≤ G - M - 4

Machines counterbored holes on the side surface.
Dimension Increments ZFC, ZTC: 1 mm Increments
Select U U3, U4, U5, U6
Machining datum plane selection required for Shape B, L-side specification symbol LL, R-side specification symbol RR
Applicable Conditions [ ! ] Applicable to Standard Type only
[NG] Not applicable to Shape K
Shape A
Ordering Code ZFC20-U3
Standard conditions [ ! ] P + U₁ + 3 ≤ ZFC (ZTC) ≤ G - U₁- 4

U Selection	U₁	U₂	F
3	6.5	3.5	3.5
4	8	4.5	4.5
5	9.5	5.5	5.5
6	11	6.5	6.5

Shape B
Standard conditions [ ! ] P + K + 4 ≤ KFC (KTC) ≤ H - K - 4
[ ! ]H+K+4 ≤ KFC (KTC) ≤ G－K－4

Shape B
Ordering Code R-side specification: QFC25-M3-RR, L-side specification: QFC25－M3－LL
Standard Conditions [ ! ] P + M + 4 ≤ QFC (QTC) ≤ H - M - 4
[ ! ]H+M+4 ≤ QFC (QTC) ≤ G－M－4

Shape B
Ordering Code R-side specification: ZFC20-U3-RR, L-side specification: ZFC20－U3－LL
Standard Conditions [ ! ] P + U₁ + 3 ≤ ZFC (ZTC) ≤ H - U₁-4
[ ! ]H+U₁+4 ≤ ZFC (ZTC) ≤ G－U₁－4

[!] Conditions may vary depending on the shaft bore specs.

Lista de números de pieza

Número de artículos

Número de pieza

GEAB1.5-20-10-B-[6-16/1]

Number of Teeth

(Teeth)

Material (Details)

Shape

Surface Treatment

Shaft Bore Config.

Shaft Bore Dia.

(Ø)

Tooth Width B

(mm)

Precision

(Old JIS)

RoHS?

Cantidad mínima de pedido

[General Steel Material] EN 1.1191 Equiv.

Shape B

Not Provided

Round hole+tap

6 ～ 16

JIS B 1702 Class 4

1 piezas

Precio unitario (IVA no incluidos)(precio unitario IVA incluidos)	Fecha de envío estándar

( - )

7 días laborables

Información detallada

Contorno y especificaciones

Contorno y especificaciones

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.