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NINGBO SUNTHAI BEARING CO.,LTD SUNTHAI® F&F®TEL:+86-574- 87222434 87220319 87220519 (EXT) 8013
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SUNTHAI TRACK ROLLER BEARING( LFR series、SG series、LR series、LV series、V-W series、A and AT series、LR5200 series)
Post by ffbing, 2010-7-22, Views:
305705ZZ=LR5205NPPU 305706ZZ=LR5206NPPU 305707ZZ=LR5207NPPU 305708ZZ=LR5208NPPU 305800ZZ=LR5200KDDU305801ZZ=LR5201KDDU305802ZZ=LR5202KDDU 305803ZZ=LR5203KDDU
305805-2RSR=LR5205NPPU 305806ZZ=LR5206KDDU 305807ZZ=LR5207KDDU 305808ZZ=LR5208KDDU

● 滚轮与导轨的接触为两点60度接触,具有良好的接触性能并且运转阻力很小,从而达到比较长的使用寿命。
● 滚轮采用双列角接触球轴承的内部结构设计及加厚的外圈,使滚轮具有更高的承载能力,滚轮轴承配置偏心轮及同心轴后按装简单。
● 滚轮用优质轴承钢或不锈钢制造,经热处理、精密磨削加工而成,并在内部填充长寿命的高品质多用途油脂。滚轮防尘采用金属防尘盖(KDD)或橡胶密封圈(NPP)。
| 轴承型号 Bearing No . | 外 径 上 Φdw mm | 内径 Bore mm | 外径 O.D. mm | 宽度 Width mm | 宽度 Width mm | A | 倒角 Cham fer r/min mm | 额定载荷(KN) Load Rating | 钢球参数 Ball Complement | 重量 Wei ght | |||||
| SUNTHAI | NIKO | Φdw | D | D | C | B | A | R/min | Cw | Cow | Fr | For | No. | Size | Kg |
| LFR50/4NPP | | 5 | 4 | 13 | 6 | 7 | 8.04 | 0.2 | 1.05 | 0.85 | 1.15 | 1.6 | 2.000 | 18 | 7 |
| LFR50/5-KDD | R50/5-4ZZ | 4 | 5 | 16 | 7 | 8 | 9 | 0.2 | 1.2 | 0.86 | 1.3 | 1.78 | 2.000 | 18 | 9 |
| LFR50/5-NPP | R50/5-4 2RS | 4 | 5 | 16 | 7 | 8 | 9 | 0.2 | 1.2 | 0.86 | 1.3 | 1.78 | 2.000 | 18 | 9 |
| LFR50/5KDD | R50/5-6ZZ | 6 | 5 | 17 | 7 | 8 | 10.5 | 0.2 | 1.27 | 0.82 | 1.3 | 1.78 | 2.000 | 18 | 10 |
| LFR50/5NPP | R50/5-6 2RS | 6 | 5 | 17 | 7 | 8 | 10.5 | 0.2 | 1.27 | 0.82 | 1.3 | 1.78 | 2.000 | 18 | 10 |
| LFR50/8KDD | R50/8-6ZZ | 6 | 8 | 24 | 11 | 11 | 14 | 0.3 | 3.67 | 2.28 | 1.3 | 4.56 | 3.175 | 14 | 20 |
| LFR50/8NPP | R50/8-6 2RS | 6 | 8 | 24 | 11 | 11 | 14 | 0.3 | 3.67 | 2.28 | 1.3 | 4.56 | 3.175 | 14 | 20 |
| LFR5201KDD | R201-10ZZ | 10 | 12 | 35 | 15.9 | 15.9 | 20.65 | 0.3 | 8.5 | 5.1 | 5.1 | 10.2 | 4.763 | 18 | 80 |
| LFR520NPP | R201-10 2RS | 10 | 12 | 35 | 15.9 | 15.9 | 20.65 | 0.3 | 8.5 | 5.1 | 5.1 | 10.2 | 4.763 | 18 | 80 |
| LFR5202NPP | R202-12 2RS | 12 | 15 | 45 | 15.9 | 15.9 | 26.50 | 0.3 | 9.7 | 6.1 | 5.8 | 11.2 | 4.763 | 20 | 100 |
| LFR5301KDD | R301-10ZZ | 10 | 12 | 42 | 19 | 19 | 24 | 0.6 | 13 | 7.7 | 7.5 | 14.2 | | | 100 |
| LFR5301 NPP | R301-10 2RS | 10 | 12 | 42 | 19 | 19 | 24 | 0.6 | 13 | 7.7 | 7.5 | 14.2 | | | 100 |
| LFR5302 KDD | R302-10ZZ | 10 | 15 | 47 | 19 | 19 | 26.65 | 1 | 16.2 | 9.2 | 6.2 | 18.4 | 5.556 | 18 | 170 |
| LFR5302 NPP | R302-10 2RS | 10 | 15 | 47 | 19 | 19 | 26.65 | 1 | 16.2 | 9.2 | 6.2 | 18.4 | 5.556 | 18 | 170 |
| LFR5201-KDD | R5201-12ZZ | 12 | 12 | 35 | 15.9 | 15.9 | 21.75 | 0.3 | 8.4 | 5 | 5.1 | 10 | 4.763 | 18 | 85 |
| LFR5201-NPP | R5201-12 2RS | 12 | 12 | 35 | 15.9 | 15.9 | 21.75 | 0.3 | 8.4 | 5 | 5.1 | 10 | 4.763 | 18 | 85 |
| LFR5201-14KDD | R5201-14ZZ | 14 | 12 | 40 | 18 | 20 | 24 | 0.3 | 9.8 | 5 | 6.7 | 12.1 | 4.763 | 18 | 95 |
| LFR5201-14NPP | R5201-14 2RS | 14 | 12 | 40 | 18 | 20 | 24 | 0.3 | 9.8 | 5 | 6.7 | 12.1 | 4.763 | 18 | 95 |
| LFR5204-16KDD | R5204-16ZZ | 16 | 20 | 52 | 20.6 | 20.6 | 31.5 | 0.6 | 16.8 | 9.5 | 12.1 | 16.6 | 7.144 | 16 | 230 |
| LFR5204-16NPP | R5204-16 2RS | 16 | 20 | 52 | 20.6 | 20.6 | 31.5 | 0.6 | 16.8 | 9.5 | 12.1 | 16.6 | 7.144 | 16 | 230 |
| LFR5206-20KDD | R5206-20ZZ | 20 | 25 | 72 | 23.8 | 23.8 | 41 | 0.6 | 29.5 | 16.6 | 20.7 | 33.2 | 8.731 | 18 | 250 |
| LFR5206-20NPP | R5206-20 2RS | 20 | 25 | 72 | 23.8 | 23.8 | 41 | 0.6 | 29.5 | 16.6 | 20.7 | 33.2 | 8.731 | 18 | 250 |
| LFR5206-25KDD | R5206-25ZZ | 25 | 25 | 72 | 23.8 | 23.8 | 43.5 | 29.2 | 29.2 | 16.4 | 23.1 | 32.8 | 8.731 | 18 | 250 |
| LFR5206-25NPP | R5206-25 2RS | 25 | 25 | 72 | 23.8 | 23.8 | 43.5 | 0.6 | 29.2 | 16.4 | 23.1 | 32.8 | 8.731 | 18 | 250 |
| LFR5207-30KDD | R5207-30ZZ | 30 | 30 | 80 | 27 | 27 | 51 | 1 | 38 | 20.8 | 21.4 | 36.2 | 10.319 | 18 | 660 |
| LFR5207-30NPP | R5207-30 2RS | 30 | 30 | 80 | 27 | 27 | 51 | 1 | 38 | 20.8 | 21.4 | 36.2 | 10.319 | 18 | 660 |
| LFR5208-40KDD | R5208-40ZZ | 40 | 40 | 98 | 36 | 36 | 62.5 | 1 | 54.8 | 29 | 55 | 58 | | | 1360 |
| LFR5208-40NPP | R5208-40 2RS | 40 | 40 | 98 | 36 | 36 | 62.5 | 1 | 54.8 | 29 | 55 | 58 | | | 1360 |

装空间特别紧凑的导轨,与导轨滚轮配套的固定轴承装入导轨滚轮后不会突出或很少突出到轴承平面。
| 轴承型号 Bearing No . | 外径上 Φdw mm | 内径 Bore mm | 外径 O.D. mm | 宽度 Width mm | 宽度 Width mm | L mm | D2 mm | H | 倒角 Chamfer r/min mm | 额定载荷(KN) Load Rating | 钢球参数 Ball Complement | 重量 Weight | |||
| SUNTHAI | NIKO | Φdw | D | D | C | B | L | d2 | H | R/min | Cw | Cow | No. | Size | Kg |
| SG10 | LFR50/4NPP | 5 | 4 | 13 | 6 | 3.5*2 | 16.08 | 5.9 | | 0.3 | 1.05 | 0.85 | 2.000 | 14 | 7 |
| SG15 | SG5RS | 6 | 5 | 17 | 8 | 5.75 | 20.46 | 8.6 | 0.5 | 0.3 | 1.8 | 0.95 | 2.000 | 18 | 8 |
| SG15-10 | | 10 | 5 | 17 | 8 | 5.75 | 25.5 | 8.6 | 1.2 | 0.3 | 1.8 | 0.95 | 2.000 | 18 | 9 |
| SG15-1 | | 7 | 5 | 17 | 8 | 5.75 | 20.46 | 8.6 | 1.5 | 0.3 | 1.8 | 0.95 | 2.000 | 18 | 10 |
| SG20 | SG6RS | 8 | 6 | 24 | 11 | 7.25 | 28.62 | 11.1 | 0.7 | 0.3 | 3.48 | 1.75 | 3.175 | 14 | 25 |
| SG20-1 | | 9 | 6 | 24 | 11 | 7.25 | 28.62 | 11.1 | 0.5 | 0.3 | 3.48 | 1.75 | 3.175 | 14 | 25 |
| SG25 | SG8RS | 10 | 8 | 30 | 14 | 8.5 | 35.77 | 13 | 0.7 | 0.3 | 5.18 | 2.7 | 3.969 | 14 | 49 |
| SG25-1 | | 5 | 8 | 27.6 | 14 | 10 | 30.77 | 13 | 1 | 0.3 | 5.18 | 2.7 | 3.969 | 14 | 50 |
| SG35 | SG12RS | 12 | 12 | 42 | 19 | 12.5 | 48.93 | 18 | 1 | 0.5 | 10.6 | 5.9 | 5.953 | 14 | 136 |

| 轴承型号 Bearing No . | 内径 Bore mm | 外径 O.D. mm | 宽度 Width mm | 外径上 r mm | 倒角 Chamfer mm | 外径上 r mm | 额定载荷(KN) Ball Rating Dynamic | 钢球参数 Ball Compl ementmm | 重量Weight | ||||
| SUNTHAI | EURO | GERMAN | d | D | B | R | rs | R | CR | CoR | No. | Size | G |
| LR200 NPPU | 361200R | LR200NPPU | 10 | 32 | 9 | 400 | 0.6 | 400 | | | | | |
| LR201 NPPU | 361201R | LR201NPPU | 12 | 35 | 10 | 400 | 0.6 | 400 | | | | | |
| LR202 NPPU | 361202R | LR202NPPU | 15 | 40 | 11 | 400 | 0.6 | 400 | | | | | |
| LR203 NPPU | 361203R | LR203NPPU | 17 | 47 | 12 | 400 | 0.6 | 400 | | | | | |
| LR204 NPPU | 361204R | LR204NPPU | 20 | 52 | 14 | 400 | 1 | 400 | | | | | |
| LR205 NPPU | 3612050R | LR205NPPU | 25 | 62 | 15 | 400 | 1 | 400 | | | | | |
| LR206 NPPU | 361206R | LR206NPPU | 30 | 72 | 16 | 400 | 1 | 400 | | | | | |
| LR207 NPPU | 361207R | LR207NPPU | 35 | 80 | 17 | 400 | 1.1 | 400 | | | | | |
| LR208 NPPU | 361208R | LR208NPPU | 40 | 85 | 18 | 400 | 1.1 | 400 | | | | | |
| LR209 NPPU | 361209R | LR209NPPU | 90 | 45 | 19 | 400 | 1.1 | 400 | | | | | |
● 轴承采用双列角接触球轴承的内部结构设计及加厚的外圈,使轴承具有更高的承载能力。
● 轴承用优质轴承钢(AISI52100或不锈钢AISI440C)制造,经热处理、精密磨削加工而成,并在内部填充长寿命的高品质多用途油脂。轴承防尘采用金属防尘盖。三泰轴承也可以提供带有同心轴和偏心轴的轴承。
● 轴承外圈的V型槽底有退刀槽,如使用要求不允许退刀槽时,可向三泰轴承公司订购不带退刀槽的轴承,也可定制其它V形角度的轴承。
1. 阻力小,寿命长,应用广泛:LV系列导轨轴承的V形表面经过精细磨削加工,表面粗糙度达Ra0.32。轴承的V型槽与内圈安装平面平行度好。工作时,轴承与圆柱形导轨之间的受力平稳,磨擦阻力小。
2. 安装简单方便:轴承配置偏心轴及同心轴后,使安装很方便,调整偏心轴承的偏心量即可得到合适的预载。
Track rollers with "V" groove profile - Vee'd Bearings
• Series LV bearings can be widely used in the cylindrical track or " V " profile track with an angle of 120 degrees. Different from the series LFR bearings, series LV bearings are more adaptable to the different track sizes. Each type can be applied with a larger range of track diameters. They are widely used for the heavy-duty track, mobile equipment, wire straightening machine and so on.
• Bearings take the internal structure design of double row angular contact ball bearings and have a thick-walled outer ring, so the bearings can accommodate higher loads.
• Bearings are made of the high-quality bearing steel, processed by heat treatment and precision grind, and are filled with a long service life, high-grade and multi-purposes grease. Bearings take the metal shield to prevent the dust. SUNTHAI also can provide the bearings with concentric or eccentric pivot.
• The bearings have an undercut on its bottom of groove on the outer ring. If the application disallow this undercut, SUNTHAI can meet customer's technical requirement. Also SUNTHAI can accept the bearings with various angle of " V " profile.
■ Characteristics of the guide system that series LV bearings are applied :
1. Low resistance, long service life, widely-uses
The roughness of the " V " profile surface can be reached to Ra0.32 processed by precision grind. The bearings have well parallelism between the "V" profile groove and the mount planes of inner ring relatively. When bearings working, the stresses between the bearing and cylindrical track is in equality and the friction resistance is low.
2. Easy installation
After bearing assembled the concentric or eccentric pivot, installation will be convenient. To adjust the eccentric one's eccentricity, the bearing can get the fitting proload.

| 滚轮型号 Wheels No . | 外径上 Φdw mm | 内径 Bore mm | 外径 O.D. mm | 宽度 Width mm | 宽度 Width mm | A | 角度 Angle | 倒角Chamfer r/min mm | 载荷 Load | 重量 Weight | |
| SUNTHAI | Φdw | D | D | B | C | A | α | R/min | Cw(KN) | Cow(KN) | Kg |
| LV 20/7 ZZ | 10 | 7 | 22 | 11 | 11 | 14.5 | 120 | 0.3 | 3.78 | 2.05 | 17 |
| LV 20/8 ZZ | 10 | 8 | 30 | 14 | 14 | 18.1 | 120 | 0.3 | 5.13 | 2.67 | 49 |
| LV20/10ZZ | 10 | 10 | 30 | 14 | 14 | 18.1 | 120 | 0.3 | 5.13 | 2.67 | 48 |
| LV 202-38 ZZ | 10 | 15 | 38 | 17 | 17 | 22.25 | 120 | 0.5 | 8.47 | 5.37 | 87 |
| LV 202-40 ZZ | 10 | 15 | 40 | 18 | 18 | 22 | 120 | 0.5 | 8.47 | 5.37 | 110 |
| LV 201 ZZ | 20 | 12 | 41 | 20 | 20 | 28 | 120 | 0.3 | 8.47 | 5.37 | 130 |
| LV 201-14.2RS | 14 | 12 | 39.9 | 20.1 | 18 | 24 | 100 | 0.5 | 8.9 | 5 | 107 |
| LV 202-41 ZZ | 20 | 15 | 41 | 20 | 20 | 28 | 120 | 0.5 | 8.47 | 5.37 | 116 |
| LV 203 ZZ | 20 | 17 | 58 | 25 | 25 | 35 | 120 | 0.5 | 14.66 | 9.1 | 325 |
| LV 204-57 ZZ | 20 | 20 | 57 | 22 | 22 | 34.5 | 120 | 0.6 | 14.66 | 9.1 | 290 |
| LV 204-58 ZZ | 30 | 20 | 58 | 25 | 25 | 41 | 120 | 0.6 | 14.66 | 9.1 | 310 |

| 滚轮型号 Wheels No . | 内径 Bore mm | 外径 O.D. mm | 宽度 Width mm | A1 | A2 | 倒角 Chamfer r/min mm | 载荷 Load | 重量 Weight | |
| SUNTHAI | D1 | D | B | A1 | A2 | R/min | Cw(KN) | Cow(KN) | Kg |
| W0 | 4 | 14.84 | 6.35 | 5.94 | 9.12 | 0.3 | 1 | 0.5 | 5 |
| W0X | 4 | 14.84 | 6.35 | 5.94 | 9.12 | 0.3 | 1 | 0.5 | 5 |
| W1 | 4.763 | 19.56 | 7.87 | 7.9. | 11.86 | 0.3 | 2.2 | 1 | 11 |
| W1X | 4.763 | 19.56 | 7.87 | 7.93 | 11.86 | 0.3 | 2.2 | 1 | 11 |
| W2 | 9.525 | 30.73 | 11.1 | 12.7 | 18.24 | 0.3 | 4.9 | 2.5 | 38 |
| W2X | 9.525 | 30.73 | 11.1 | 12.7 | 18.24 | 0.3 | 4.9 | 2.5 | 38 |
| W3 | 12 | 45.72 | 15.88 | 19.05 | 26.98 | 0.6 | 9.4 | 4.9 | 130 |
| W3X | 12 | 45.72 | 15.88 | 19.05 | 26.98 | 0.6 | 9.4 | 4.9 | 130 |
| W4 | 15 | 59.94 | 19.05 | 25.4 | 34.93 | 1 | 14.8 | 8.2 | 280 |
| W4X | 15 | 59.94 | 19.05 | 25.4 | 34.93 | 1 | 14.8 | 8.2 | 280 |
| W4XL | 22 | 75.39 | 25.4 | 31.75 | 44.45 | 1.1 | 20.6 | 14.3 | 580 |
| W4XXL | 22 | 75.39 | 25.4 | 31.75 | 44.45 | 1.1 | 20.6 | 14.3 | 580 |
| W1SSX | 4.763 | 19.56 | 7.87 | 7.93 | 11.86 | 0.3 | 2.2 | 1 | 11 |
| W2SSX | 9.525 | 30.73 | 11.1 | 12.7 | 18.24 | 0.3 | 4.9 | 2.5 | 38 |
| W3SSX | 12 | 45.72 | 15.88 | 19.05 | 26.98 | 0.6 | 9.4 | 4.9 | 130 |
| W4SSX | 15 | 59.94 | 19.05 | 25.4 | 34.93 | 1 | 14.8 | 8.2 | 280 |

| 滚轮型号 Wheels No . | 内径 Bore mm | 外径 O.D. mm | 外径1 O.D. mm | 宽度 Width mm | 倒角Chamfer r/min mm | 角度 Angle | 底a | 载荷 Load | 重量 Weight | |
| SUNTHAI | D | D | D1 | B | Ra | α | R | Cw(KN) | Cow(KN) | Kg |
| A507.2Z | 5 | 21 | 19 | 6 | 0.5 | 90 | 0.3 | 2.2 | 0.89 | 11 |
| A507.2RS | 5 | 21 | 19 | 6 | 0.5 | 90 | 0.3 | 2.2 | 0.89 | 11 |
| A603.2Z | 6 | 21 | 19 | 6 | 0.5 | 90 | 0.3 | 2.2 | 0.89 | 11 |
| A603.2RS | 6 | 21 | 19 | 6 | 0.5 | 90 | 0.3 | 2.2 | 0.89 | 11 |
| A806.2Z | 8 | 26 | 23 | 7 | 0.5 | 90 | 0.3 | 3.3 | 1.37 | 19 |
| A806.2RS | 8 | 26 | 23 | 7 | 0.5 | 90 | 0.3 | 3.3 | 1.37 | 19 |
| A1001.2Z | 10 | 30 | 27 | 8 | 0.5 | 90 | 0.3 | 4.55 | 1.97 | 31 |
| A1001.2RS | 10 | 30 | 27 | 8 | 0.5 | 90 | 0.3 | 4.55 | 1.97 | 31 |
| A1002.2Z | 10 | 35 | 31 | 9 | 0.5 | 90 | 0.6 | 6 | 2.68 | 46 |
| A1002.2RS | 10 | 35 | 31 | 9 | 0.5 | 90 | 0.6 | 6 | 2.68 | 46 |
| A1500.2Z | 15 | 47 | 41 | 11 | 0.5 | 90 | 0.6 | 7.6 | 3.7 | 104 |
| A1500.2RS | 15 | 47 | 41 | 11 | 0.5 | 90 | 0.6 | 7.6 | 3.7 | 104 |
| AT8E00* | 8 | 25 | 20.4 | 14 | 0.7 | 70 | 2 | 5.09 | 2.6 | 34 |
线缆、钢条和钢丝经过逐步连续的矫直整形获得最终产品,对卷料或盘料以及不自然形态的料进行不同步骤的合理操作。因此,对每一步生产必须由它的物料支撑部分完成翻转过程,此时矫直整形作业开始,具体可分三步:
1. 矫直:把料矫回到原样,这一步由最初的几个导向校直轮(矫直轮)完成。
2. 除去料体由于卷盘所形成的残留形态:这一步由位于矫直机中间部份的导向校直轮(矫直轮)完成。
3. 矫直机最后几个导向校直轮(矫直轮)完成钢丝的成形:一般这些导向校直轮(矫直轮)的放置角度与最初几个导向校直轮(矫直轮)成90度角。通常这三步应结合起来,其理由是矫直机在二个位面上所用的是5、7、9、11或13个导向校直轮(矫直轮)。导向校直轮(矫直轮)的制造精度对最终产品(钢丝)的质量以及导向校直轮,(矫直轮)的使用寿命具有主要影响。因此,外圈上的V形矫正槽应与导向校直轮(矫直轮)的其它部位一样具有几何特性和精度。为此,三泰轴承导向校直轮(矫直轮)的V槽在导向校直轮(矫直轮)组装前已经过精密加工。
V导向校直轮(矫直轮) - A 和 AT系列:下列机器使用相同种类的导向校直轮(矫直轮):
● 机床-玻璃纤维缆索(草坪割草机) ● 弹簧制造机器 ● 金属丝制造机器 ● 卷轴,非卷轴的重绕机器 ● 精细和高精度的拉丝。
The straightening of cables, strips and wires is performed in steps with successive stages until the final product is obtained. To rationalize the handling between the different steps the material is stocked on reels or on bobbins and takes forms which are not natural.
For every production step, it is therefore necessary to carry out the inverse process by taking the material off its support. At that moment, the straightening operation takes place. It may be divided into three steps:
The straightening, consisting of putting the material back into its original shape. The operation is carried out by the first straightening rollers.
The removal of the residual constraint in the material, due to the winding on the bobbin. This operation is performed by the rollers located in the central part of the straightener.
The forming of the wire carried out by the last rollers on the straightener, generally placed at an angle of 90°compared to the angle of the first rollers.
The manufacturing precision of the roller has a major influence on the quality of the final product (wires) as well as on the service life of the rollers. It is therefore essential that the rectified "V" notch on the outer ring has the same geometric characteristics and precision as the rest of the bearing. For this reason, the notch on a YITONG roller is precise machined prior to bearing assembly.
Grinding this notch on an assembled standard bearing is risky, as the bearing may be damaged. An acceptable uniformity and geometrical precision can thus not be guaranteed. The service life of the roller is much shorter and the quality of wire drawing suffers accordingly.
Among numerous applications using thread guides and straightening rollers, YITONG has managed to make a name for itself in the field of specialized wire drawing companies, producing steel cables for the tire industry.
• Machines for spring manufacturing
• Machines for metal wires
• Machines for spooling, un-spooling and rewinding
• Fine and high precision wire drawing
SUNTHAI is equipped with all the necessary tooling for the production of such bearings.
带圆柱形外圆或冠形外圆的导轨滚轮- LR系列
1. 本系列滚轮又称支撑滚轮,可用于重载导轨或作为惰轮使用,广泛应用于减低摩擦的场合。
2.产品外圆加工为一个R400的圆弧面(型号后缀带U),使产品在使用过程中受力良好。
3.滚轮采用深沟球轴承或双列角接触球轴承的内部结构设计及加厚的外圈, 使滚轮具有更高的承载能力。
4. 滚轮用优质轴承钢制造,经热处理、精密磨削加工而成,并在内部填充长寿命高品质多用途的进口油脂。滚轮防尘采用金属防尘盖或橡胶密封圈。三泰轴承公司也可以提供带有同心轴和偏心轴的滚轮,部分规格也可提供耐腐蚀的不锈钢制造的滚轮。
5. 运行平稳、误差小 LR系列支撑滚轮除了按滚动轴承标准生产以外,采用特殊的加工工艺,以适合内圈固定,外圈旋转的特殊工作方式
Track rollers with cylindrical or crowned outer ring - type LR5200
• Series LR rollers are also called CAM ROLLERS, can be used in the heavy loads track or used as an idler wheel. They are widely used in the particular application that the friction should be reduced.
• The outer diameter surface of rollers is shaped to the crowned runner surface with R500 (suffix U), so make the stresses well when rollers working.
• Rollers take the internal structure design of deep groove ball bearings or double row angular contact ball bearings and have a particularly thick-walled outer ring, so the rollers can accommodate higher loads.
• Rollers are made of the high-quality bearing steel, processed by heat treatment and precision grind, and are filled with a long service life, high -grade and multi-purposes grease. Rollers take the metal shield (suffix KDD) or rubble seal (suffix NPP) to prevent the dust. SUNTHAI also can provide the rollers with concentric or eccentric pivot. Some types of the rollers can be made from the corrosion resistance stainless steel.
■ Characteristics of the guide system that series LR rollers are applied :
1. Low resistance, long service life, widely-use
Being cam rollers with crowned runner surface R500, make its stresses in well-distributed between rollers and track when working, thus the stresses centralization are avoided, the friction resistance are reduced and the service life of rollers have been improved a lot. Most of the double row cam rollers can be relubricated through the filling hole on the inner ring to adapt the adverse working conditions.
2. Easy installation
After rollers assembled the concentric or eccentric pivot, installation can be made convenient. To adjust the eccentric one's eccentricity, the rollers can get the fitting preload.
3. Smooth running, minimum error
Besides we produce the series LR cam rollers according to the standard of rolling bearings, we also make the strict control on the rotary accuracy of outer ring in order to meet special working mode that inner ring is fixed while outer ring running.
| 轴承型号 Bearing No . | 内径 Bore mm | 外径 O.D. mm | 宽度 Width mm | 外径上 r mm | 倒角 Chamfer mm | 额定载荷(KN) Ball Rating Dynamic | 钢球参数 Ball Compl ementmm | 重量Weight | ||||
| SUNTHAI | EURO | GERMAN | d | D | B | R | rs | CR | CoR | No. | Size | G |
| LR5200NPPU | 305700ZZ | LR5200KDD | 10 | 32 | 14.3 | …. | 0.6 | 6.8 | 4.05 | 9 | 3.969 | 0.055 |
| LR5201NPPU | 305701ZZ | LR5201NPPU | 12 | 35 | 15.9 | …. | 0.6 | 8.6 | 5.1 | 9 | 4.763 | 0.063 |
| LR5202NPPU | 305702ZZ | LR5202NPPU | 15 | 40 | 15.9 | …. | 0.6 | 9.8 | 6.2 | 10 | 4.763 | 0.072 |
| LR5203NPPU | 305703ZZ | LR5203NPPU | 17 | 47 | 17.5 | …. | 0.6 | 12.6 | 8.2 | 9 | 5.556 | 0.091 |
| LR5204NPPU | 305704ZZ | LR5204NPPU | 20 | 52 | 20.6 | …. | 1 | 15.8 | 10.5 | 9 | 7.144 | 0.120 |
| LR5205NPPU | 305705ZZ | LR5205NPPU | 25 | 62 | 20.6 | …. | 1 | 18.5 | 13 | 10 | 7.144 | 0.190 |
| LR5206NPPU | 305706ZZ | LR5206NPPU | 30 | 72 | 23.8 | …. | 1 | 24.6 | 21.4 | 9 | 8.731 | 0.290 |
| LR5207NPPU | 305707ZZ | LR5207NPPU | 35 | 80 | 27 | …. | 1.1 | 30.5 | 22.4 | 9 | 10.31 | 0.430 |
| LR5208NPPU | 305708ZZ | LR5208NPPU | 40 | 85 | 30.2 | …. | 1.1 | 34.5 | 25.5 | 10 | 11.113 | 0.570 |
| LR5200KDDU | 305800ZZ | LR5200KDDU | 10 | 32 | 14.3 | 400 | 0.6 | 6.8 | 4.05 | 9 | 3.969 | 0.055 |
| LR5201KDDU | 305801ZZ | LR5201KDDU | 12 | 35 | 15.9 | 400 | 0.6 | 8.6 | 5.1 | 9 | 4.763 | 0.063 |
| LR5202KDDU | 305802ZZ | LR5202KDDU | 15 | 40 | 15.9 | 400 | 0.6 | 9.8 | 6.2 | 10 | 4.763 | 0.072 |
| LR5203KDDU | 305803ZZ | LR5203KDDU | 17 | 47 | 17.5 | 400 | 0.6 | 12.6 | 8.2 | 9 | 5.556 | 0.091 |
| LR5204KDDU | 305804ZZ | LR5204KDDU | 20 | 52 | 20.6 | 400 | 1 | 15.8 | 10.5 | 9 | 7.144 | 0.120 |
| LR5204NPPU | 305804-2RSR | LR5204NPPU | 20 | 52 | 20.6 | 400 | 1 | 15.8 | 10.5 | 9 | 7.144 | 0.120 |
| LR5205KDDU | 305805ZZ | LR5205KDDU | 25 | 62 | 20.6 | 400 | 1 | 18.5 | 13 | 9 | 8.731 | 0.190 |
| LR5205NPPU | 305805-2RSR | LR5205NPPU | 25 | 62 | 20.6 | 400 | 1 | 18.5 | 13 | 10 | 7.144 | 0.190 |
| LR5206KDDU | 305806ZZ | LR5206KDDU | 30 | 72 | 23.8 | 400 | 1 | 24.6 | 21.4 | 9 | 8.731 | 0.290 |
| LR5208KDDU | 305807ZZ | LR5207KDDU | 35 | 80 | 27 | 400 | 1.1 | 30.5 | 22.4 | 9 | 10.31 | 0.430 |
| LR5208KDDU | 305808ZZ | LR5208KDDU | 40 | 85 | 30.2 | 400 | 1.1 | 34.5 | 25.5 | 10 | 11.113 | 0.570 |


