Spur gears with clamping sleeve / contact angle 20 degrees

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Gear Shape: Shape E Shape F Shape G

* Standard Type Bushings (ST) and Short Type Bushings (SH) are available.

Tooth surface accuracy Equivalent to the new JIS B 1702-1 Class 8
(Old JIS B 1702 Class 4)

d Dim. Tolerance (H7)

Nominal	d_H7
8 to 10	+0.015 0
11 to 18	+0.018 0
19 to 30	+0.021 0
31 to 50	+0.025 0

[ ! ] Compliant with JIS B 0401-2.

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
	Gear	Bushing	Gear	Bushing
GEAL	EN 1.1191 Equiv.	EN 1.1191 Equiv.	—	—	Hex socket head cap screw EN 1.7220 Equiv., Black Oxide
GEALB			Black Oxide
GEALG			Electroless Nickel Plating

[M]Material: EN 1.1191 Equiv.
Screw: EN 1.7220 Equiv. (Black Oxide)

Specification Table

Part Number	—	Number of Teeth	—	B	—	Gear Shape	—	Shaft Bore Dia. d
GEAL1.0	—	40	—	10	—	G	—	10

Part Number		Number of Teeth	B	Gear Shape	Shaft Bore Dia.d_H7(Select from Table 1)			E Reference Circle Dia.	F Addendum Circle Dia.	g Dedendum Circle Dia.	ℓ₁	L₁	H	* 1 Allowable Transmission Force (N⋅m) Bending Strength
Type	Module				Shape E, G	Shape F
Type	Module				ST Bushing	ST Bushing	SH Bushing
GEAL GEALB GEALG	1.0	35	10	G	8 to 10	—	—	35	37	32.5	10	20	30	12.13
		36						36	38	33.5				12.52
		38						38	40	35.5				13.46
		40			8 to 12			40	42	37.5				14.31
		42						42	44	39.5				15.24
		45						45	47	42.5				16.66
		48			8 to 18			48	50	45.5			44	18.04
		50						50	52	47.5			46	18.95
		52						52	54	49.5			46	19.87
		60			10 to 18			60	62	57.5			50	23.64
		70			12 to 32			70	72	67.5			56	28.31
		80			15 to 32			80	82	77.5			60	32.98
		100			17 to 32			100	102	97.5			60	42.59
		120			17 to 32			120	122	117.5			70	51.87
	1.5	20	15	E G	8	—	—	30	33	26.25	12	27	25	18.81
		24						36	39	32.25			30	24.45
		25						37.5	40.5	33.75			30	25.92
		26						39	42	35.25			32	27.42
		28			8 to 12			42	45	38.25			34	30.43
		30			8 to 12			45	48	41.25			35	33.30
		32			8 to 17			48	51	44.25			40	36.11
		35			8 to 18			52.5	55.5	48.75				40.93
		36			8 to 18			54	57	50.25				42.24
		40			8 to 30			60	63	56.25			45	48.31
		48			8 to 32			72	75	68.25			50	60.90
		50						75	78	71.25				63.97
		52						78	81	74.25				67.07
		60			12 to 32			90	93	86.25			55	79.80
		70						105	108	101.25			65	95.56
		80						120	123	116.25			65	111.30
	2.0	15	20	E F G	8	—	—	30	34	25	14	34	24	28.65
		18					—	36	40	31			30	38.07
		20					8	40	44	35			33	44.59
		24			8 to 17		8 to 12	48	52	43			40	57.96
		25			8 to 17			50	54	45			40	61.43
		26			8 to 18			52	56	47			42	64.99
		30						60	64	55			48	78.93
		32						64	68	59			50	85.59
		36			10 to 32			72	76	67			55	100.13
		40						80	84	75			60	114.52
		48						96	100	91			62	144.35
		50						100	104	95			62	151.64
		52			12 to 32			104	108	99			65	158.99
		60			12 to 32			120	124	115			65	189.16
	2.5	14	25	E F G	8	—	—	35	40	28.75	16	41	25	49.96
		15					—	37.5	42.5	31.25			30	55.96
		16					8	40	45	33.75			32	61.98
		18			8 to 14		8	45	50	38.75			38	74.36
		20			8 to 14	8 to 12	—	50	55	43.75			40	87.09
		24			8 to 22		14 to 19	60	65	53.75			48	113.19
		25			8 to 25			62.5	67.5	56.25			50	119.98
		28						70	75	63.75			60	140.86
		30						75	80	68.75			65	154.16
		32			10 to 28			80	85	73.75			70	167.17
		36			10 to 35			90	95	83.75			75	195.56
		40			10 to 42			100	105	93.75			80	223.66
		48			12 to 50			120	125	113.75			85	281.94
		50			12 to 50			125	130	118.75			85	296.17
	3.0	12	30	E F G	8	—	—	36	42	28.5	18	48	27	66.66
		14			8·10	—	—	42	48	34.5			32	86.33
		15			8 to 12	8	—	45	51	37.5			35	96.70
		16			8 to 17	8 to 10	11	48	54	40.5			40	107.10
		18				8 to 15	—	54	60	46.5			44	128.50
		20				8 to 17	18·19	60	66	52.5			50	150.49
24		8 to 25			8 to 25	28	72	78	64.5	58			195.60
25		8 to 25				28·30	75	81	67.5	60			207.33
28		10 to 35				28 to 35	84	90	76.5	70			243.41
30							90	96	82.5	75			266.40
32							96	102	88.5	75			288.88
36		12 to 42					108	114	100.5	80			337.93
40		12 to 45					120	126	112.5	85			386.49

*1 Allowable Transmission Forces in the table are reference values calculated with prescribed conditions.[!]The "-" text in the above table means that it is not selectable.

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Part Number
GEAL1.0-35-10-G-[8,10]
GEAL1.0-36-10-G-[8,10]
GEAL1.0-38-10-G-[8,10]
GEAL1.0-40-10-G-[8,10,11,12]
GEAL1.0-42-10-G-[8,10,11,12]
GEAL1.0-45-10-G-[8,10,11,12]
GEAL1.0-48-10-G-[8,10,11,12,14,15,16,17,18]
GEAL1.0-50-10-G-[8,10,11,12,14,15,16,17,18]
GEAL1.0-52-10-G-[8,10,11,12,14,15,16,17,18]
GEAL1.0-60-10-G-[10,11,12,14,15,16,17,18]
GEAL1.0-70-10-G-[12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.0-80-10-G-[15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.0-100-10-G-[17,18,19,20,22,24,25,28,30,32]
GEAL1.0-120-10-G-[17,18,19,20,22,24,25,28,30,32]
GEAL1.5-20-15-E-8
GEAL1.5-20-15-G-8
GEAL1.5-24-15-E-8
GEAL1.5-24-15-G-8
GEAL1.5-25-15-E-8
GEAL1.5-25-15-G-8
GEAL1.5-26-15-E-8
GEAL1.5-26-15-G-8
GEAL1.5-28-15-E-[8,10,11,12]
GEAL1.5-28-15-G-[8,10,11,12]
GEAL1.5-30-15-E-[8,10,11,12]
GEAL1.5-30-15-G-[8,10,11,12]
GEAL1.5-32-15-E-[8,10,11,12,14,15,16,17]
GEAL1.5-32-15-G-[8,10,11,12,14,15,16,17]
GEAL1.5-35-15-E-[8,10,11,12,14,15,16,17,18]
GEAL1.5-35-15-G-[8,10,11,12,14,15,16,17,18]
GEAL1.5-36-15-E-[8,10,11,12,14,15,16,17,18]
GEAL1.5-36-15-G-[8,10,11,12,14,15,16,17,18]
GEAL1.5-40-15-E-[8,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30]
GEAL1.5-40-15-G-[8,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30]
GEAL1.5-48-15-E-[8,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-48-15-G-[8,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-50-15-E-[8,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-50-15-G-[8,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-52-15-E-[8,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-52-15-G-[8,10,11,12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-60-15-E-[12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-60-15-G-[12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-70-15-E-[12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-70-15-G-[12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-80-15-E-[12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL1.5-80-15-G-[12,14,15,16,17,18,19,20,22,24,25,28,30,32]
GEAL2.0-15-20-E-8
GEAL2.0-15-20-G-8
GEAL2.0-18-20-E-8
GEAL2.0-18-20-G-8
GEAL2.0-20-20-E-8
GEAL2.0-20-20-F-8
GEAL2.0-20-20-G-8
GEAL2.0-24-20-E-[8,10,11,12,14,15,16,17]
GEAL2.0-24-20-F-[8,10,11,12]
GEAL2.0-24-20-G-[8,10,11,12,14,15,16,17]
GEAL2.0-25-20-E-[8,10,11,12,14,15,16,17]
GEAL2.0-25-20-F-[8,10,11,12]
GEAL2.0-25-20-G-[8,10,11,12,14,15,16,17]
GEAL2.0-26-20-E-[8,10,11,12,14,15,16,17,18]

Standard Unit Price	Minimum order quantity	Standard Shipping Days ?	RoHS	Number of Teeth (Teeth)	Surface Treatment	Shaft Bore Dia. (Ø)	Tooth Width B (mm)	Keyless Hub Spur Gear Shapes
-	1	12 Days	10	35	Not Provided	8 ～ 10	10	Shape G
-	1	12 Days	10	36	Not Provided	8 ～ 10	10	Shape G
-	1	12 Days	10	38	Not Provided	8 ～ 10	10	Shape G
-	1	12 Days	10	40	Not Provided	8 ～ 12	10	Shape G
-	1	12 Days	10	42	Not Provided	8 ～ 12	10	Shape G
-	1	12 Days	10	45	Not Provided	8 ～ 12	10	Shape G
-	1	12 Days	10	48	Not Provided	8 ～ 18	10	Shape G
-	1	12 Days	10	50	Not Provided	8 ～ 18	10	Shape G
-	1	12 Days	10	52	Not Provided	8 ～ 18	10	Shape G
-	1	12 Days	10	60	Not Provided	10 ～ 18	10	Shape G
-	1	12 Days	10	70	Not Provided	12 ～ 32	10	Shape G
-	1	12 Days	10	80	Not Provided	15 ～ 32	10	Shape G
-	1	12 Days	10	100	Not Provided	17 ～ 32	10	Shape G
-	1	12 Days	10	120	Not Provided	17 ～ 32	10	Shape G
-	1	12 Days	10	20	Not Provided	8	15	Shape E
-	1	12 Days	10	20	Not Provided	8	15	Shape G
-	1	12 Days	10	24	Not Provided	8	15	Shape E
-	1	12 Days	10	24	Not Provided	8	15	Shape G
-	1	12 Days	10	25	Not Provided	8	15	Shape E
-	1	12 Days	10	25	Not Provided	8	15	Shape G
-	1	12 Days	10	26	Not Provided	8	15	Shape E
-	1	12 Days	10	26	Not Provided	8	15	Shape G
-	1	12 Days	10	28	Not Provided	8 ～ 12	15	Shape E
-	1	12 Days	10	28	Not Provided	8 ～ 12	15	Shape G
-	1	12 Days	10	30	Not Provided	8 ～ 12	15	Shape E
-	1	12 Days	10	30	Not Provided	8 ～ 12	15	Shape G
-	1	12 Days	10	32	Not Provided	8 ～ 17	15	Shape E
-	1	12 Days	10	32	Not Provided	8 ～ 17	15	Shape G
-	1	12 Days	10	35	Not Provided	8 ～ 18	15	Shape E
-	1	12 Days	10	35	Not Provided	8 ～ 18	15	Shape G
-	1	12 Days	10	36	Not Provided	8 ～ 18	15	Shape E
-	1	12 Days	10	36	Not Provided	8 ～ 18	15	Shape G
-	1	12 Days	10	40	Not Provided	8 ～ 30	15	Shape E
-	1	12 Days	10	40	Not Provided	8 ～ 30	15	Shape G
-	1	12 Days	10	48	Not Provided	8 ～ 32	15	Shape E
-	1	12 Days	10	48	Not Provided	8 ～ 32	15	Shape G
-	1	12 Days	10	50	Not Provided	8 ～ 32	15	Shape E
-	1	12 Days	10	50	Not Provided	8 ～ 32	15	Shape G
-	1	12 Days	10	52	Not Provided	8 ～ 32	15	Shape E
-	1	12 Days	10	52	Not Provided	8 ～ 32	15	Shape G
-	1	12 Days	10	60	Not Provided	12 ～ 32	15	Shape E
-	1	12 Days	10	60	Not Provided	12 ～ 32	15	Shape G
-	1	12 Days	10	70	Not Provided	12 ～ 32	15	Shape E
-	1	12 Days	10	70	Not Provided	12 ～ 32	15	Shape G
-	1	12 Days	10	80	Not Provided	12 ～ 32	15	Shape E
-	1	12 Days	10	80	Not Provided	12 ～ 32	15	Shape G
-	1	12 Days	10	15	Not Provided	8	20	Shape E
-	1	12 Days	10	15	Not Provided	8	20	Shape G
-	1	12 Days	10	18	Not Provided	8	20	Shape E
-	1	12 Days	10	18	Not Provided	8	20	Shape G
-	1	12 Days	10	20	Not Provided	8	20	Shape E
-	1	12 Days	10	20	Not Provided	8	20	Shape F
-	1	12 Days	10	20	Not Provided	8	20	Shape G
-	1	12 Days	10	24	Not Provided	8 ～ 17	20	Shape E
-	1	12 Days	10	24	Not Provided	8 ～ 12	20	Shape F
-	1	12 Days	10	24	Not Provided	8 ～ 17	20	Shape G
-	1	12 Days	10	25	Not Provided	8 ～ 17	20	Shape E
-	1	12 Days	10	25	Not Provided	8 ～ 12	20	Shape F
-	1	12 Days	10	25	Not Provided	8 ～ 17	20	Shape G
-	1	12 Days	10	26	Not Provided	8 ～ 18	20	Shape E

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Specifications/Overview

■Features of surface pressure gears
·Easy to assemble and disassemble and can be used multiple times.
·Easy to adjust the mounting position of the rotating body.
·Additional machining to shafts such as keyway is not required and is inexpensive,
and the strength of shafts is not compromised.
·It is rattle-free and resistant to vibration and shock.

Bushings

■Installation
(1) Wipe dust off shaft surface and apply oil or grease.
  (Do not use any oil or grease containing molybdenum type wear reduction agents.)
(2) Wipe off and apply oil or grease on contact surfaces of spur gear and bushing.
    Apply oil or grease to threads and seat of screws as well.
(3) Temporarily assemble spur gear and bushing and insert the shaft.
  (Do not tighten the screws on the bushing before inserting into shaft.)
(4) After locating the gear on the shaft, tighten the clamping screws using a torque wrench in the diagonal pattern order,
beginning lightly (approximately 1/4 of the specified tightening torque).
(5) Tighten the screws further to an increased torque (approximately 1/2 of specified torque).
(6) Tighten to the specified full tightening torque.
(7) Finally, tighten the screws to the listed torque values in a circular order.

■Cautions on Installation
·When installing, be sure to apply oil or grease.
　When oil or grease is not applied, shaft may slip because of inadequate tightening.
· Tighten the bushing screws after inserting the shaft.
(Bushing may deform if the screws are tightened before inserting the shaft.)
· Use torque wrench to tighten screws.
·Do not use screws other than those included.
■Removal
· Be sure the system is completely shut down before starting work.
· Loosen the tightening screws in circumferential order.
· Insert a screw in a screw hole for removal and tighten evenly.
· Repeat the installation procedure for re-installation.

* 3 Tightening Screw Type 4 Tightening Screw Type 6 Tightening Screw Type

[!] Operating Temperature: －20 to +80°C
[ ! ] No Slits on SH Bushings.
*: * SH bushings have tapped holes for removal in 3 places.

[M]Material: EN 1.1191 Equiv.
Screw: EN 1.7220 Equiv. (Black Oxide)

■Table 1: Bushing Dimension Table
·Standard Type (ST)

Shaft bore diameter d	Screw		Tapped Hole for Removal	Max. allowable torque N⋅m	Allowable Thrust Load kN	Screws Tightening Torque N⋅m	(L₂)	D	D₁	D₂	d₁	L	ℓ
	Qty.	Size
8	4	M3 × 12	M3 × 2	16	4.0	2.0	8.5	25.5	19	10	3.3	15.5	4
10	3	M4 × 16	M4 × 2	39	5.34	4.0	10.5	30	22	12	4.5	16.5	5
11				43				31	23	13
12				48				32	24	14
14	4	M4 × 18	M4 × 2	73	5.34	4.0	12	35	27	16.6	4.5	22	6
15				78				36	28	17.6
16				83			13	37	29	18.6		23	7
17				88				38	30	19.6
18	4	M5 × 20	M5 × 2	154	8.74	8.3	14	43	33	20.6	5.5	23	7
19				163				45	35	22.4
20				171				46	36	23.4
22				186				48	38	24.6
24				206				50	40	26.6
25				216				52	42	28.4
28	6	M5 × 25	M5 × 2	353	8.74	8.3	15.5	54	44	30.6	5.5	24	8
30				382				57	47	33.4
32				412			16.5	59	49	34.7		25	9
35				451				63	53	38.4		26.5
38	6	M6 × 28	M6 × 2	686	12.3	13.7	19	70	58	42	6.6	28	10
40				725				71	59	43.5		30.5
42				757			20	74	62	46		31.5	11
45	6	M8 × 35	M8 × 2	1490	22.7	34.3	24.5	84	69	49.5	8.8	38.5	13
48				1600				87	72	52.5
50				1660				89	74	54.5

· Shaft tolerance g6 and shaft surface roughness Ra6.3 are standard. kgf = N × 0.101972
· When there are keyway and D cut on the installation shaft, transmitting torque is reduced by approximately more than 15%.
[ ! ] Electroless nickel plating reduces maximum allowable torque and thrust load capacities by 20% to 30%.
·Short (SH)

Shaft bore diameter d	Screw		Tapped Hole for Removal	Max. allowable torque N⋅m	Allowable Thrust Load kN	Screws Tightening Torque N⋅m	D	D₁	D₂	d₁	L	ℓ
Shaft bore diameter d	Qty.	Size	Tapped Hole for Removal	Max. allowable torque N⋅m	Allowable Thrust Load kN	Screws Tightening Torque N⋅m	D	D₁	D₂	d₁	L	ℓ
6	3	M3 × 10	M3 × 3	5.6	1.87	1.9	22.5	16	8.5	3.3	10.5	3
8	3	M3 × 10	M3 × 3	8.5	2.12	1.9	24.5	18	10.5	3.3	10.5	3
10	3	M4 × 12	M4 × 3	18	3.59	3.9	29	21	12.75	4.4	13	4
11				20	3.63		30	22	13.75
12				23	3.76		31	23	14.75
14	4	M4 × 18	M4 × 2	37	5.21	3.9	36	26	17.65	4.4	17	5
15				39	5.10		37	27	18.65
16				42	5.17		38	28	19.65
17				45	5.23		39	29	20.65
18				48	5.28		40	30	21.85
19				49	5.12		42	32	22.85
20	4	M5 × 18	M5 × 2	97	9.68	7.8	46	36	24.1	5.5	19	6
22				110	9.98		47	37	25.75
24				121	10.00		49	39	27.75
25				124	9.90		51	41	28.75
28				141	10.00		53	43	31.75
30				149	9.89		56	46	33.75
32				163	10.12		58	47	35.75
35				173	9.88		61	50	39.1		20

kgf = N × 0.101972

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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Basic information

Material (Details)	General Steel Material	Shape	Shape A / Shape B	Ground Tooth	Not Provided
Backlash	Provided	Precision(Old JIS)	JIS B 1702 (Class 4)

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Basic Attributes

Number of Teeth(Teeth)
12

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Surface Treatment
- Not Provided
- Black Oxide
- Electroless Nickel Plating
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Shaft Bore Dia.(Ø)
8

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Tooth Width B(mm)
10

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30
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Keyless Hub Spur Gear Shapes
- Shape E
- Shape F
- Shape G
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Type
- GEAL
- GEALB
- GEALG
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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:
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.