3e904kat2 Flexible Bearings for Harmonic Drive Servo Actuator

• Customization: Available
• Contact Angle: 0
• Aligning: Non-Aligning Bearing
• Model NO.: Harmonic Drive Servo Actuator
• Separated: Separated
• Rows Number: Single
• Load Direction: Radial Bearing
• Material: Bearing Steel
• ID: 18.8mm
• Od: 25mm
• B: 4mm
• Cr: 3.75
• Cor: 3.12
• Transport Package: Single Box
• Specification: 3E904KAT2
• Trademark: MONTON
• Origin: Luoyang
• HS Code: 8482102000
• Production Capacity: 1000PCS/Week
• Package Size: 10.00cm * 10.00cm * 5.00cm
• Package Gross Weight: 0.200kg

Product Description

Name	Flexible bearing
Seires
Brand	MONTON
Model	3E904KAT2
d	18.8
D	25
B	4
Ring Material	Gcr15/Special materail
Cage Material	Nylon cage
r	0.3
r1	0.3
Dynamic load rating  cr	3.75
Static load rating  Cor	3.12
Input rotate speed
Sealed	as customer requested
Weight	KG
Bearing Arrangement
Design Structure	balls
Precision	P4 or as customer requested
Vibration	ZV1, ZV2, ZV3, or  as customer requested
Clearance	C0, C2, C3, or  as customer requested
Quality standard	ISO9001: 2000/SGS
Package	single box
Original	Luoyang
Service	OEM
Delivery date	Accordingly
Application	machinetook,E-bikre,tobotics, harmonic drive ect.

Flexible Bearings

Flexible bearings(harmonic drive strain wave gear bearing) Flexible bearings for harmonic reducer are mainly used in harmonic reducer. Harmonic transmission includes three basic components: wave generator, flexible wheel, rigid wheel and flexible bearing. Flexible bearings are the core components, and the transmission meets the performance requirements of high deceleration ratio through the elastic deformation of bearings. In the work of flexible bearing, the inner ring is installed on the elliptical cam, the outer ring is installed on the flexible wheel, and the elastic deformation occurs with the rotation of the cam,which not only bears the cyclic stress load, but also bears the alternating stress load. These points put forward high requirements for the design and manufacture of bearing inner ring and outer ring and cage, and only a few enterprises such as Japan and the United States can produce it. Luoyang Monton Flexible Bearing has reached the advanced level of design and manufacture of flexible bearings for harmonic transmission. The design of flexible bearing has formed a complete theoretical system, the manufacturing technology of the product is becoming more and more perfect, mature, and the product quality is becoming more and more stable.

The 3E series harmonic drive reducer flexible bearing has been successfully applied to the harmonic drive device of "Shenzhou" and series spaceship, which has contributed to my manned spaceflight industry. Because the inner ring of the flexible rolling bearing is tightly sheathed with the rigid cam of the wave generator. Therefore, it can be regarded as a rigid elliptical ring, the rolling body (generally a ball) is a particle with concentrated mass connected with the inner and outer rings through the spring, and the outer ring is an elastic thin-wall ring, and its original curve is the inner isometric curve of the original curve of the flexible wheel.

Harmonic drive transmission consists of three basic components: wave generator, flex spline, Circular Spline and flexible bearing. Among them, the flexible bearing is the core component, and the transmission achieves the performance requirement of high deceleration ratio through the elastic deformation of the bearing. When the flexible bearing is in operation, the inner ring is mounted/installed on the elliptical cam, which bears the cyclic stress load during the work; while the outer ring is mounted/installed on the flexible wheel, and elastically deforms with the rotation of the cam during the work, which not only bears the cyclic stress load, but also withstands the alternating stress load. Flexible rolling bearing utilizes controllable elastic deformation of the flexible components to transmit motion and power. It has characteristics of large transmission ratio, wide application range, high precision, small air return, large carrying capacity, high efficiency, small volume/size, light weight, smooth transmission, low noise, and can transfer motion to sealed space. Robot bearing/harmonic drive bearing is a special kind which easily deforms in a reversible way. It has a very thin outer ring which varies from round shape to oval interatively during its working time. easily double sealed bearing designed primarily for application of radial load-deep ball grooves also permit application of thrust load in either direction, often used in conjunction with another bearing.

Bearing	Inner ring	Outer ring	Width	Dynamic load rating	Static load rating	Radial Deformation	Input rotate speed	Output torque
Model	ID	OD	B	Cr	Cor	Max. mm	r/min	N.m
3E904KAT2	18.8	25	4	3.75	3.12	0.2	3000	2
3E905KAT2	24	32	5	4.74	3.75	0.2	3000	6
3E806KAT2	30	40	6	7.12	5.83	0.3	3000	16
1000907AKIT2	35.8	48.2	8	9.93	8.36	0.3	3000	30
3E907KAT2	37	50	8	12.63	12	0.3	3000	30
3E809KAT2	45	60	9	12.89	11.55	0.4	3000	50
1000809AKIT2	45.7	61.8	9.5	12.89	11.55	0.4	3000	50
10008810AKT2	48	63	9.7	12.89	11.55	0.4	3000	50
1000912AKT2	60	80	12	27.19	28.18	0.5	3000	120
3E911KAT2	57	75	12	14.76	13.18	0.5	3000	7.5
3E812KAT2	60	80	13	15.51	14.44	0.5	3000	12
3E814KAT2	70	95	15	22.38	21.57	0.6	3000	20
3E815KAT2	75	100	15	26.4	25.67	0.6	3000	25
3E816KAT2	71	95	15			0.8
3E818KAT2	90	120	18	34.7	34.94	1	3000	45
3E822KAT2	110	150	24	43.55	45.63	1	1500	80
3E824KAT2	120	160	24	57.02	57.75	1	1500	120
3E826KAT2	130	175	30	81.59	86.1	1	1500	170
3E830KAT2	150	200	30	91.6	102.67	1	1500	200
3E832KAT2	160	220	35	115.66	127.59	1.25	1500	220
3E836KAT2	180	240	35	130.04	146.47	1.5	1500	250
3E838KAT2	190	250	40	139.96	160.42	1.5	1500	350
3E842KAT2	210	280	45	173.15	210.91	1.5	1500	400
3E844KAT2	220	300	45	181.72	231	1.5	1500	500
3E848KAT2	240	320	48	190.2	231	2	1500	560
F14	25.07	33.896	6.095	4.74	3.75	0.2	3000	8
M14	25.07	33.896	6.095	5.53	4.73	0.2	3000	12
F17	30.3	41.722	6.16	7.12	5.83	0.3	3000	16
M17	30.3	41.722	6.16	8.31	7.35	0.3	3000	24
F20	35.56	49.073	7.24	9.93	8.36	0.3	3000	30
M20	35.56	49.073	7.24	12.63	12	0.3	3000	45
F25	45.212	61.341	9.015	12.89	11.55	0.4	3000	50
M25	45.212	61.341	9.015	16.4	16.58	0.4	3000	75
F32	58.928	79.756	11.81	22.28	20.91	0.5	3000	120
M32	58.928	79.756	11.81	27.19	28.18	0.5	3000	180