JRTM
Product Category:
Turntable Bearing
Keywords:
JRTM
Product Details
JRTM rotary table bearings with integral measuring system
The measurement of angular displacement is very important in modem industry, especially in machine tool industry, the rotation angle of mechanical parts was often highly demand. This needs to accurately mature and control the angular displacement.
Now, grating encoder and magnetic gate encoder are commonly used in measuring the angular displacement. At the same time, the composite bearing has extremely high rotation accuracy because it is installed on the YRT bearing, and can also carry axial load, radial load and tilting moment.
They are very suitable for the high precision rotary table in machine tools industry, dividing head and scientific experiment and measurement and other areas where the high precision is demand.
JRTM series is consistent with YRT in mechanical aspects, which is just also equipped with magnetic scale. A measurement system realize non-contact magnetic resistance measurement precision Angle of a few seconds.
Dimensions and Specification
Below table show the installing dimensions of the scan head, but the value with"*" is different from basic value.
| Bearing Type | Overall Dimension (mm) | The fixing holes | |||||||||||||
| d | D | H | H1 | H2 | C | D1 | dn | dm | Inner ring | Outer ring | |||||
| d1 (mm) | d2 (mm) | a (mm) | QTY | d3 (mm) | QTY | ||||||||||
| JRTM150 | 150 | 240 | 43* | 26 | 12 | 214 | 215 | 165 | 225 | 7 | 11 | 6.2 | 32 | 7 | 33 |
| JRTM180 | 180 | 280 | 46* | 29 | 15 | 244 | 245 | 194 | 260 | 7 | 11 | 6.2 | 44 | 7 | 45 |
| JRTM200 | 200 | 300 | 47* | 30 | 15 | 274 | 274.5 | 215 | 285 | 7 | 11 | 6.2 | 44 | 7 | 45 |
| JRTM260 | 260 | 385 | 55 | 36.5 | 18 | 345 | 345.5 | 280 | 365 | 9.3 | 15 | 8.2 | 32 | 9.3 | 33 |
| JRTM325 | 325 | 450 | 60 | 40 | 20 | 415 | 415.5 | 342 | 430 | 9.3 | 15 | 8.2 | 32 | 9.3 | 33 |
| JRTM395 | 395 | 525 | 65 | 42.5 | 20 | 486 | 486.5 | 415 | 505 | 9.3 | 15 | 8.2 | 42 | 9.3 | 45 |
| JRTM460 | 460 | 600 | 70 | 46 | 22 | 560 | 560.5 | 482 | 580 | 10 | 15 | 8.2 | 42 | 10 | 45 |
Hongjing can also offer below JRTM rotary table bearings with integral measuring system: JRTM580, JRTM650, JRTM850, JRTM950, JRTSM260, JRTSM325, JRTSM39, JRTSM460. If you need that, please contact with Hongjing.
| Bearing Type | Screw connection QTY | Axial Radial Run-out | Connect screws holes | Pitch t | Tightening torque of screw | （Axial） | （Radial） | Limited spped | Friction moment | weight | |||
| Ma | Dynamic | Static | Dynamic | Static | (Grease Lubrication) | ||||||||
| μm | G | QTY | QTY ×t | Nm | Ca | Coa | Cr | Cor | kNm/mrad | Nm | ≈Kg | ||
| JRTM150 | 4 | 3 | M8 | 3 | 36×10° | 14 | 112 | 630 | 56 | 170 | 83 | 14 | 6.2 |
| JRTM180 | 4 | 4 | M8 | 3 | 48×7.5° | 14 | 118 | 710 | 69.5 | 200 | 125 | 21 | 7.7 |
| JRTM200 | 4 | 4 | M8 | 3 | 48×7.5° | 14 | 120 | 765 | 81.5 | 220 | 160 | 27 | 9.7 |
| JRTM260 | 4 | 6 | M12 | 3 | 36×10° | 34 | 160 | 1060 | 93 | 290 | 320 | 53 | 18.3 |
| JRTM325 | 4 | 6 | M12 | 3 | 36×10° | 34 | 275 | 1930 | 120 | 345 | 630 | 105 | 25 |
| JRTM395 | 6 | 6 | M12 | 3 | 48×7.5° | 34 | 300 | 2280 | 186 | 655 | 1100 | 185 | 33 |
| JRTM460 | 6 | 6 | M12 | 3 | 48×7.5° | 34 | 355 | 2800 | 200 | 765 | 1700 | 285 | 45 |
1、Includes the fixing holes and screwed holes, uniformly distributed over the whole rings.
2、Used for the tightening torques of 12.9 class bolts.
3、The friction torque should be measured at the speed of 5r/min.
4、Used for the fixing holes of shaft and bearing set.
※Note the pitches and equal divisions for the bearing fixing holes.
JRTM
Keywords:
JRTM
Product Packaging
Application Fields
Industrial robot
CNC rotary table
Medical devices
Machine tool equipment
Testing instrument
Harmonic reducer
Our Advantages
Technical Strength
Product accuracy
Quality Assurance
Service Advantages
We can provide more solutions.
Our main products include cross roller bearings, rotary table bearings, rotary table bearings with internal and external teeth, thrust bearings, flexible bearings, etc. The accuracy can reach P2/P4/P5 level, with complete specifications to meet the needs of various high-end precision equipment.
Contact Us
Phone number:
Contact email:
Contact Address:
Factory Building No. 1, Yingdang Line, Hongshan Township, Xigong District, Luoyang City, Henan Province
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