Steel Straight Bevel Gears Straight Tooth System Ratio 1:1

Steel straight bevel gears with a 1:1 ratio, also known as miter bevel gears, are conical gears designed to transmit rotational motion between two intersecting shafts at a 90-degree angle, with equal numbers of teeth on both gears. The straight tooth system features teeth that are straight and parallel to the cone’s generators, resembling spur gears but conical in shape. Typically made from materials like C45 steel (1.0503), these gears have milled teeth with a 20-degree engagement angle, ensuring efficient power transfer. They are sold individually, requiring a matching gear to form a pair. Due to abrupt tooth engagement, they produce more noise at high speeds and are limited to linear speeds below 1000 feet/min or 1000 rpm for smaller gears. These gears are used in applications like machinery, vehicles, and industrial equipment.

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Steel Straight Bevel Gear Ratio 1:1

Module	Number of teeth	da	d	ND	NL	L1	L	S	b	BH7	E	Torque*	Weight
Module	Number of teeth	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	Ncm	g
0,5	20	10,7	10	8	4	7,0	7,0	5,0	3	4	9,7	0,011	1
0,5	24	12,7	12	8	4	6,4	7,0	5,0	3	4	10,7	0,018	3
0,5	30	15,7	15	10	4	7,5	8,5	6,6	3	4	13,7	0,032	4
0,5	36	18,7	18	12	5	9,0	10,1	8,0	3	4	16,7	0,050	10
0,5	40	20,7	20	12	5	8,5	9,5	7,5	3	4	17,1	0,064	10
0,5	50	25,7	25	14	5	8,5	9,5	7,5	3	4	19,6	0,108	16
1	12	13,0	12	10	6,2	7,95	9,6	7,7	3	5	13,2	0,035	3
1	16	17,4	16	14	7	10	11,2	8,7	4	5	16	0,052	9
1	19	20,4	19	15	6,5	10	11,8	9,2	4	5	18	0,085	14
1	20	21,4	20	16	6,1	10	11,4	8,8	4	5	18,1	0,138	15
1	22	23,4	22	18	7	11	12,8	9,7	4,7	5	20	0,158	22
1	26	27,4	26	22	7	12	13,4	9,7	5,5	5	22	0,193	35
1	30	31,4	30	22	7	14	16,0	11,7	6,4	5	26	0,29	50
1	40	41,4	40	30	10	18	19,8	15,7	6,0	8	35	0,55	111
1,5	16	26,1	24	20	11	15	17,3	14,1	5,1	8	25	0,18	32
1,5	20	32,1	30	22	9	15	17,2	13,1	6,4	8	27	0,34	47
1,5	22	35,1	33	20	8	15	17,1	12,6	7,0	8	28	0,44	50
1,5	25	39,6	37,5	25	8	15	17,6	12,3	8,0	10	30	0,62	70
1,5	30	47,1	45	30	12	20	21,9	15,6	9,6	10	37	1,01	135
1,5	40	62,1	60	40	12	25	27,7	19,1	12,7	15	48	2,46	310
2	16	34,8	32	25	11,5	18	20,7	16,4	6,8	10	31	0,45	66
2	20	42,8	40	30	10	17	19,9	14,4	8,5	10	33	0,84	104
2	22	46,8	44	30	10	19	21,0	15,4	9,3	10	36	1,08	130
2	25	52,8	50	35	8	19	21,4	14,4	10,6	10	38	1,50	182
2	30	62,8	60	40	12	25	26,9	18,4	12,7	15	47	2,45	306
2	40	82,8	80	50	15	31	33,7	23,4	15,2	20	62	16,3	660
2,5	16	43,7	40	30	10	21	23,8	16,8	11	10	35	2,6	120
2,5	18	48,7	45	30	10	22	25,0	17,4	12	10	38	3,6	150
2,5	20	53,7	50	35	10	22	25,9	16,9	14	10	40	4,9	210
2,5	22	58,7	55	30	10	24	27,1	17,3	15	10	43	6,3	240
2,5	25	66,2	62,5	45	10	25	28,8	17,6	17	15	47	9,3	370
2,5	30	78,7	75	50	12	29	32,7	19,3	20	15	55	16,3	560
2,5	40	103,6	100	60	14	31	35,4	21,8	20	25	70	33,6	1100
3	16	52,4	48	40	12	24	27,7	18,2	15	10	40	4,6	240
3	18	58,4	54	40	10	25	28,1	17,2	17	10	42	6,4	280
3	20	64,4	60	40	10	26	29,5	17,2	19	15	45	8,7	320
3	22	70,4	66	40	8	27	30,2	17,2	20	15	48	11,6	410
3	25	79,4	75	50	10	28	31,9	16,7	23	15	52	17,3	490
3	30	94,4	90	50	12	35	38,8	22,2	25	20	65	29,2	950
3	40	124,4	120	60	15	35	39,1	22,2	25	25	80	60,7	1600
4	16	70,0	64	50	11	29	32,9	21,0	19	20	50	11,1	420
4	18	78,0	72	50	16	36	41,0	27,0	22	20	60	15,6	640
4	20	85,9	80	50	16	39	43,5	28,0	24	20	65	20,8	810
4	22	93,9	88	50	12	37	40,9	24,0	26	20	65	27,9	940
4	25	105,9	100	60	12	38	42,7	23,0	30	20	70	41,9	1400
4	30	125,9	120	60	18	42	47,9	27,9	30	25	85	67,5	2000
4	40	165,8	160	80	20	48	53,2	32,9	30	30	110	138,0	4200
5	16	87,4	80	60	12	36	41,5	25,7	25	20	62	22,2	860
5	18	97,4	90	60	12	37	42,2	23,7	29	20	65	30,7	1050
5	20	107,4	100	60	12	39	44,4	23,7	32	25	70	42,7	1300
5	22	117,5	110	70	12	43	48,5	25,7	35	25	77	57,5	1840
5	25	132,4	125	70	12	42	47,5	21,2	40	30	80	85,8	2140
5	30	157,4	150	70	12	44	51,3	24,7	40	30	96	139,5	3520
5	40	207,3	200	90	20	52	60	32,9	40	35	128,1	288,0	7060
6	18	116,5	108	60	15	44	53,6	31,3	35	25	81,0	54,8	1770
6	20	128,5	120	70	15	44	53,5	27,8	40	30	83,4	76,3	2190
6	25	158,5	150	75	15	51	60	26,7	50	30	97,3	153,4	3790
6	30	188,5	180	90	15	51	60	26,4	50	35	112,1	250,6	5810
6	40	248,5	240	100	20	58	67	32,9	50	40	148,6	555,0	11600
8	20	171,3	160	90	15	52	62	29,20	50	40	103,3	181,6	4560

Key Advantages of Steel Straight Bevel Gears

High Strength and Durability: Steel straight bevel gears, often made from materials like C45 steel, provide exceptional strength and resistance to wear. Their robust construction ensures long-term reliability in demanding applications, such as heavy machinery and automotive systems, withstanding significant mechanical stress without deformation.
Efficient Power Transmission: The straight tooth design enables efficient power transfer between intersecting shafts at a 90-degree angle. With a 1:1 ratio, these steel bevel gears maintain equal rotational speeds, ensuring smooth and consistent operation in applications like conveyor systems or industrial drives.
Cost-Effective Manufacturing: The straight tooth geometry is simpler to manufacture compared to spiral or helical bevel gears. This reduces production costs, making steel straight bevel gears an economical choice for industries requiring reliable, high-volume gear solutions without compromising performance.
Versatile Application Range: These steel bevel gear sets are suitable for diverse applications, including automotive differentials, agricultural machinery, and industrial equipment. Their ability to handle moderate loads and speeds makes them adaptable for systems requiring precise motion transfer at right angles.
Ease of Installation and Maintenance: The straightforward design of straight bevel gears simplifies installation and alignment in mechanical assemblies. Their milled teeth and standard 20-degree engagement angle allow for easy maintenance, reducing downtime in industrial settings and improving operational efficiency.
Reliable Performance at Moderate Speeds: While limited to linear speeds below 1000 feet/min or 1000 rpm for smaller gears, straight bevel gears deliver reliable performance in low to moderate speed applications. Their design minimizes backlash, ensuring stable operation in precision-driven systems.

Steel Straight Bevel Gear Advantages

Applications of Steel Straight Bevel Gears

Automotive Differentials: Steel straight bevel gears are integral in automotive differentials, enabling smooth power transfer from the drive shaft to the wheels. Their 1:1 ratio ensures equal torque distribution, facilitating stable vehicle handling, especially in rear-wheel-drive systems.
Industrial Machinery: These bevel gears are used in industrial equipment like lathes and milling machines, where they transmit rotational motion at right angles. Their durability and cost-effective design make them ideal for heavy-duty operations requiring reliable power transfer.
Agricultural Equipment: In agricultural machinery, such as tractors and harvesters, straight bevel gears drive components like power take-off (PTO) systems. Their robust steel construction handles moderate loads, ensuring consistent performance in demanding field conditions.
Conveyor Systems: Steel bevel gears are employed in conveyor systems to redirect rotational motion for material handling. Their 1:1 ratio maintains consistent belt speeds, ensuring efficient transport of goods in the manufacturing and logistics industries.
Marine Applications: In marine propulsion systems, these bevel gear sets connect shafts at 90-degree angles, enabling efficient power transmission in boat engines. Their strength and corrosion-resistant steel variants make them suitable for harsh marine environments.
Power Tools: Steel bevel gears are used in power tools like drills and grinders, where they transfer motor power to the tool’s working components. Their compact design and reliable performance support precision and durability in tool operation.