RAM-H Series High Precision Hollow Shaft Spiral Bevel Gearbox

 

- High Precision Gear -

 The planetary gear and sun gear are manufactured from high quality Ni-Cr-Mo alloy steel. Precision machined and carburized, then for precision tooth grinding or skiving assures gears high precision.

 

- Modular Deisgn of Motor Connection Plate -

The special modular design of motor connection plate is suitable for any brand and any type of servomotor. Manufactured from aluminum alloy, its surface is anodized treated for upgrading environmental-resistant and corrosion-resistant capability.

 

- Single-piece Gearbox & Advanced Surface Treatment -

The gearbox and internal gear ring are single price design and constructed, which is manufactured from Cr-Mo alloy steel, and tempered for high torque output. Gearbox surface is anti-corrosive treated for upgrading environmental resistant and corrosionresistant capability.

 

- Modular Input Shaft -

Modular input shaft design and motor shaft are coupled through a dynamic balanced collar clamping mechanism to ensure connection concentricity and zero slip power transmission at high speed.

 

- Integrated Planetary Arm Bracket -

The planetary arm bracket and the output shaft are single piece design constructed to increase torsional rigidity and accuracy. The entire structure is one-time machined for controlling accuracy in the specified tolerance.

  

Model Number	RAM-H Series Hollow Shaft Right Angle Spiral Bevel Gearbox
Speed Reduction Method	Planetary gear mechanism with designed tooth profile
Efficiency	95% per stage gearbox
Shock Load	300% as there are only compressive forces rather than shear forces on the tooth
Gear box Mounting	Flange Mounting, Foot mounting parts sold separately
Reduction Ratio	Up to 1:10 per stage 1:1000 on 3-stages
Capacity Range	100Watt to 11,000Watt
Enclosure	Totally enclosed IP55
Power Source	Servo motor, stepper motor
Backlash	Single Stage: below 5arcmin Double Stages: Below 8arcmin
Reduction Gearbox Lubrication Method	High viscosity anti-separation grease
Method of Coupling with Driven Machine	Coupling, gears, chain sprocket or belt
Standard	CE, UL, CSA, ISO 9001, ISO14001
Warranty	1 Year Limited Warranty

 

Specification 規格	Ratio減速比 (Stage 段數)	RAM060	RAM090	RAM120	RAM150
Instantaneous Max. Output Torque 瞬間最大輸出扭矩 T2B (Nm)	3/9/10/30/100	132	498	750	1428
	4/12/16/20/28/40	162	498	750	1500
	5/15/25/35/50	138	498	750	1500
	7/21/49/70	144	498	750	1500
Defined Output Torque 額定輸出扭矩 T2N (Nm)	3/9/10/21/30	44	166	250	476
	4/15/16/20/25/28/40	54	166	250	500
	5/15/25/35/50	46	166	250	500
	7/21/49/70	48	166	250	500
Reduction Ratio 減速比	L1: 1 Stage 單段	3 / 4 / 5 / 7 / 10
	L2: 2 Stage 雙段	9 / 12 / 15 / 16 / 20 / 21 / 25 / 28 / 30 / 35 / 40 / 49 / 50 / 70 / 100
	L3: 3Stage 三段	100/200/250
Defined Input Rotational Speed 額定輸入轉速 n1N (rpm)	3/4/5 (L1)	3300	2600	2300	2200
	7/10 (L2)	4000	2900	2700	2700
	12 ~ 40 (L2)	4400	3200	3000	3000
	50 (L2)	4800	3600	3300	3200
	70 ~ 100 (L2)	5500	4200	3900	3500
Backlash 精密背隙 (arcmin)	3~10 (L1)	≤8	≤8	≤8	≤8
	12~100 (L2)	≤11	≤11	≤11	≤11
Full Load Efficiency 滿載時使用效率 %	3~10 (L1)	≥91
	12~100 (L2)	≥88
Service Life使用壽命Lh2 (hrs)	3~100 (L1,L2)	20000
Weight 重量 (kgs)	3~10 (L1)	Vary according to shaft type 依產品輸出軸類型有所不同
	12~100 (L2)
Noise 噪音值 (db)		65	65	65	65
Temperature使用溫度範圍°C		（-15°C ~ +90°C）
Protection Rank 防護等級		IP64
Lubricating Oil 潤滑油		Synthetic Lubricant 合成潤滑油 ISO VG220

 

 

 

Dimensions	RAM060H	RAM090H	RAM120H	RAM150H
L1	83	114	124	154
L2	17	21.5	21.5	21
L3	28.284	33.587	42.426	45.962
L5	58.5	78.5	83.5	98
L6(1 Stage)	146	188	196	285
L6(2 Stage)	168	216	224	335
L7(1 Stage)	187.5	245	258	362
L7(2 Stage)	209.5	273	286	412
L8	59.5	79.5	84.5	99
L9	1	1	1	1
L40	16.3	22.8	31.3	43.3
L41	5	6	8	12
D1	79	109	119	139
D2	M5*P0.8x10	M6*P1.0x14	M8*P1.25x18	M10*P1.5x22
D3	42	62	85	90
D4	100	130	145	165
D5	M5*P0.8x10	M6*P1.0x14	M8*P1.25x18	M10*P1.5x22
D41	14	20	28	40
C1	≤14	≤24	≤28	≤42
C2	30-50	50-80	55-110	95-130
C3	6	6	5	10
C4	≤35	≤47.5	≤47.5	≤66.5
C5	60	95	114	142
C6	70	90	130	145
C7	M5	M6	M8	M8

▍High Precision

DA

▍Precision

 

DM	DF	RAM-S	RAM-SS
RAM-H	RAM-D	RAM-F

 

▍Standard

 

DH	DL	DN	RAH-S
RAH-SS	RAH-H	RAH-D	RAH-F