Straight tooth, Metric pitch

Precision cut, hardened

Material:	C45E DIN 1.1191
Profil:	milled
Teeth:	pressure angle α = 20° precision cut hardened (ca. HRC 56)
Quality:	9h25 DIN 3962/63/67

p_f (mm):	Tolerance of cut for continuous mounting -0.05/-0.2
F_p (mm):	Cumulative pitch error

Download CAD Files (PDF, DXF, DWG, STEP, IGES, X_T)

Type	Part No.	L	L₁	Module	p	h₀	b	h	h₁	D	d	b₁	f	F_p	m(kg)
A 2929	903523	2000	1900	3.183	10.0	25.82	29	29	11.5	15	9.0	9	2	0.142	12.0
	903524	1200	1100	3.183	10.0									0.108	7.2
	903525	800	700	3.183	10.0									0.092	4.8
A 3939	903526	2000	1900	3.979	12.5	35.02	39	39	14.0	18	11.0	11	2	0.137	22.5
	903527	1200	1100	3.979	12.5									0.108	13.5
	903528	800	700	3.979	12.5									0.094	9.8
A 4949	903667	2000	1900	5.093	16.0	43.91	49	49	24.0	20	13.5	13	-	0.121	35.3
	903668	1200	1100	5.093	16.0									0.099	21.2
	903669	800	700	5.093	16.0									0.088	14.2
A 5959	903670	2000	1900	6.366	20.0	52.63	59	59	29.0	20	13.5	13	-	0.125	50.5
	903671	1200	1100	6.366	20.0									0.104	30.3
	903672	800	700	6.366	20.0									0.094	20.2
A 7979	903664	2000	1900	7.958	25.0	71.04	79	79	39.0	26	17.5	17.5	-	0.115	89.3
	903665	1200	1100	7.958	25.0									0.098	53.6
	903666	800	700	7.958	25.0									0.090	35.7

p (mm): pitch

L₂: face width

Load table

p	Modul	z	L₂	F_N [N]	T_N [Nm]
2.0	0.637	25	9.5
2.0	0.637	30	9.5
5.0	1.592	20	11.5
5.0	1.592	20	14.5
7.5	2.387	20	19.5
10.0	3.183	14	29.5	5997	134
10.0	3.183	20	29.5	7844	250
12.5	3.979	14	40.0	11300	315
12.5	3.979	20	40.0	14145	563
12.5	3.979	26	40.0	14189	734
16.0	5.093	20	50.0	27058	1378
20.0	6.366	20	60.0	42719	2720
25.0	7.958	20	80.0	76558	6092

The rack can be supplied precision cut or hardened and ground. The values given are values for shock-free operation, good lubrication and stiff arrangement of the pinion.
A safety factor for tooth root stress S_F ≥ 1.4 and a safety factor for Hertzian stress S_H ≥ 1.0 is taken in account.

Depending on your experiences and the application a safety factor S_B ≈ 1.0 ... 4.0 has to be considered. The traction force FN is related to the number of teeth z of the pinion.

Straight tooth, Metric pitch

Precision cut, hardened

Load table

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