ATB-LM/RM series

Steel black oxidized housing
Spiral bevel gearbox with three gears inside
Ratio 1:1
Torque 25 Nm – 3200 Nm

Spiral bevel gearbox with three gears inside. Both ends can be use for input and output shaft on left or right.
Steel housing, black oxidized
Steel input and output shafts with ot without key
Nominal torques:
- T_2N : 25 Nm - 3.200 Nm
Ratios
- 1-stage : 1
Low backlash
- 1-stage : ≤ 6 arcmin
High efficiency
- 1-stage : ≥ 98%
Easy mountEasy mount
Low Noise
Compact structure
Sizes available:
- ATB065LM / ATB075LM / ATB090LM / ATB110LM / ATB140LM /ATB170LM / ATB210LM / ATB240LM / ATB280LM
- ATB065RM / ATB075RM / ATB090RM / ATB110RM / ATB140RM /ATB170RM / ATB210RM / ATB240RM / ATB280RM

Model No.		Stage	Ratio¹	ATB065 LM/RM	ATB075 LM/RM	ATB090 LM/RM	ATB110 LM/RM	ATB140 LM/RM	ATB170 LM/RM	ATB210 LM/RM	ATB240 LM/RM	ATB280 LM/RM
Nominal Output Torque T_2N	Nm	1	1	25	45	78	150	360	585	1,300	2,150	3,200
Max Acceleration Torque T_2B	Nm	1	1	1.5 times Nominal Output Torque T_2N
Max. Acceleration Input Speed n_1B	rpm	1	1	7,500	6,500	5,500	4,500	3,500	3,000	2,200	2,000	1,700
Backlash⁽²⁾	arcmin	1	1	≤ 6	≤ 6	≤ 6	≤ 6	≤ 6	≤ 6	≤ 6	≤ 6	≤ 6
Max. Radial Load F_1rB2 ⁽³⁾ Input d1	N	1	1	700	950	1,450	2,100	2,700	3,800	7,800	9,600	10,500
Max. Radial Load F_2rB3 ⁽⁴⁾ Output d2	N	1	1	900	1,100	1,700	2,700	4,800	6,600	11,500	16,000	18,000
Max. Axial Load F_1aB2 ⁽³⁾ Input d1	N	1	1	350	425	725	1,050	1,350	1,900	3,900	4,800	5,250
Max. Axial Load F_2aB3 ⁽⁴⁾ Output d2	N	1	1	450	550	850	1,350	2,400	3,300	5,750	8,500	9,000
Efficiency	%	1	1	≥ 98 %
Weight	kg	1	1	3.5	5.6	9.0	15.2	24.1	42.4	81.4	122.0	190.9
Operating Temp	ºC	1	1	-10ºC~+90ºC
Lubrication		1	1	Synthetic Iubrication
Noise Level⁽⁵⁾	dB(A)	1	1	≤68	≤70	≤74	≤76	≤77	≤78	≤80	≤82	≤83

Ratio ( i = N in / N out )
Backlash is measured at 2% of Nominal output torque T_2N
Applied to the input shaft center at n_1B
Applied to the output shaft center at n_1B
These values are measured by gearbox with ratio 5 (1-stage) at 1,500 rpm no loading.
By lower ratio and/or higher RPM, the noise level could be 3 to 5 dB higher.

Rotation direction

Maximum radial and axial loads:

The maximum radial and axial loads on the output shaft of the gearbox depends on the design of the gearbox supporting bearings.
Apex Dynamics uses the extension straddle oversized ball bearing design. This can take heavy load from both axles

Permitted radial load F2r on center of output shaft X = ½ x L for various output speeds.

If radial force F2r is not exerted on the center of the ouput shaft X < ½ x L or X > ½ x L, the permitted radial and axial loads can be calculated by the position load factor Kb on the above diagram.

Model No.		Stage	Ratio¹	ATB065 LM/RM	ATB075 LM/RM	ATB090 LM/RM	ATB110 LM/RM	ATB140 LM/RM	ATB170 LM/RM	ATB210 LM/RM	ATB240 LM/RM	ATB280 LM/RM
Massa Moments of inertia J₁	kg*cm²	1	1	0.51	1.30	3.16	7.70	23.57	58.99	195.40	369.34	799.12

ATB-LM/RM series 1-stage

	ATB065LM ATB065RM	ATB075LM ATB075RM	ATB090LM ATB090RM	ATB110LM ATB110RM	ATB140LM ATB140RM	ATB170LM ATB170RM	ATB210LM ATB210RM	ATB240LM ATB240RM	ATB280LM ATB280RM
D1	M4	M6	M6	M8	M10	M12	M16	M16	M16
D3 _k6	13	16	18	22	32	40	50	55	60
D4 _h7	63	73	88	108	135	165	205	235	275
D5	31	35	43	53	68	83	104	124	144
D6	M4	M5	M5	M8	M12	M16	M16	M16	M20
D7	21	22	28	33	47	55	75	85	110
D8	53	62	76	95	92	114	142	160	176
D9	4xM4xL7	4xM5xL8	4xM5xL8	6xM6xL10	6xM6xL10	6xM8xL12.5	6xM8xL12.5	6xM8xL12.5	6xM10xL15
D10	15.4	20.4	25.8	35.8	49.8	59.3	79.3	92.3	102.3
D11 _g6	62.9	72.9	87	107	103	127	158	178	198
D12	62	72	86	106	104	128	160	180	200
D13 _k6	13	16	18	22	32	40	50	55	60
D14 _h7	63	73	88	108	135	165	205	235	275
D16	M4	M5	M5	M8	M12	M16	M16	M16	M20
L1	65	75	90	110	140	170	210	240	280
L2	19.5	30	35	40	50	60	75	85	110
L3	13	14.5	15	15	15	15	20	25	25
L4	2	2	2	2	2	2	2	2	2
L5	16	25	28	32	45	50	70	80	100
L6	2	2.5	3.5	4	2.5	5	2.5	2.5	5
L7	47.5	54	62	72	87	102	127	147	167
L8	67	84	97	112	137	162	202	232	277
L9	4.5	4.8	4.8	7.2	10	12	12	12	15
L10	10	12.5	12.5	19	28	36	36	36	42
L11	27	30	36	44	55	67	85	95	110
L12	19.5	30	35	40	50	60	75	85	110
L13	13	15	15	15	15	15	20	25	25
L14	2	2	2	2	2	2	2	2	2
L15	16	25	28	32	45	50	70	80	100
L16	2	2.5	3.5	4	2.5	5	2.5	2.5	5
L17	6	8	8	8	10	10	10	10	10
L18	43	52.5	55	60	60	70	90	105	120
L19	4.5	4.8	4.8	7.2	10	12	12	12	15
L20	10	12.5	12.5	19	28	36	36	36	42
L21	75.5	90	100	115	130	155	195	225	260
L22	95	120	135	155	180	215	270	310	370
B1 _h9	5	5	6	6	10	12	14	16	18
B2 _h9	5	5	6	6	10	12	14	16	18
H1	15	18	20.5	24.5	35	43	53.5	59	64
H2	15	18	20.5	24.5	35	43	53.5	59	64