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Help CenterKD070XP0 Thin Section Four Point Contact Ball Bearing With Size 7×8×0.5inch
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2. radial, bidirectional‑axial and overturning‑moment loads
3. high rotary accuracy and low torque fluctuation
4. open‑type design with good heat dissipation, widely used in robot joints, opto‑electronic turntables, semiconductor equipment, medical machinery and aerospace systems。
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KD Series Thin Section Ball Bearing Four Point Contact X-type
Product Overview:
KD‑X series is imperial‑standard Open‑type Constant Cross‑Section Four‑Point‑Contact Ball Bearing (Type‑X) from Kaydon Reali‑Slim portfolio, with fixed square cross‑section of 12.7 mm (0.5 inch), open‑type without seals. Adopting gothic‑arch raceway (Type‑X four‑point‑contact) geometry, one single bearing can accommodate radial load, bidirectional axial thrust and overturning‑moment simultaneously. It can directly replace two duplex angular‑contact bearings, reducing part count, saving axial installation envelope and simplifying mechanical layout.
Cross‑section dimension keeps constant regardless of bore‑size increase, realizing large‑bore, thin‑wall and lightweight construction. AR0 solid brass cage is standard; AG0 glass‑fiber reinforced nylon cage is available as special option. Compared with KAA‑X, KA‑X, KB‑X and KC‑X series, larger‑size rolling elements deliver significant improvement on load‑carrying capacity, rigidity and anti‑tilting performance. Suitable for heavy‑duty precision rotary applications with combined loads and compact‑space constraints. Standard bore ranges from 4‑30 inches, widely applied in heavy‑duty robot joints, large‑size opto‑electronic tracking turntables, heavy‑load radar rotary mechanisms, large‑size semiconductor equipment, medical‑imaging machinery and aerospace systems.
Applications:
heavy‑duty industrial robot joints
large‑size opto‑electronic tracking turntables
heavy‑load radar rotary mechanisms
large‑size semiconductor inspection turntables
large‑medical‑imaging rotary equipment
heavy‑load aerospace rotary assemblies
optical heavy‑duty indexing mechanisms
heavy‑duty precision test fixtures
automated large-size heavy‑load rotary platforms.
Parameter：
| Item No. | Dimension | Basic Cap | Unit | ||||
| ( inch / mm ) |
( N ) | weight | |||||
| d | D | Cor | Cr | Coa |
Ca | Kg | |
| KD040XP0 | 4.0 | 5.0 | 13690 | 6270 | 34230 | 15650 | 0.366 |
| 101.6 | 127.0 | ||||||
| KD042XP0 | 4.25 | 5.25 | 14180 | 6400 | 35470 | 16000 | 0.386 |
| 107.95 | 133.350 | ||||||
| KD045XP0 | 4.5 | 5.5 | 15200 | 6710 | 38010 | 16760 | 0.405 |
| 114.3 | 139.7 | ||||||
| KD047XP0 | 4.75 | 5.75 | 15690 | 6850 | 39290 | 17160 | 0.426 |
| 120.65 | 146.05 | ||||||
| KD050XP0 | 5.0 | 6.0 | 16710 | 7160 | 41830 | 17870 | 0.454 |
| 127.0 | 152.4 | ||||||
| KD055XP0 | 5.5 | 6.5 | 18230 | 7560 | 45610 | 18940 | 0.485 |
| 139.7 | 165.1 | ||||||
| KD060XP0 | 6.0 | 7.0 | 19780 | 8000 | 49430 | 19960 | 0.526 |
| 152.4 | 177.8 | ||||||
| KD065XP0 | 6.5 | 7.5 | 21290 | 8400 | 53210 | 20980 | 0.566 |
| 165.1 | 190.5 | ||||||
| KD070XP0 | 7.0 | 8.0 | 22800 | 8800 | 57030 | 21960 | 0.606 |
| 177.8 | 203.2 | ||||||
| KD075XP0 | 7.5 | 8.5 | 24310 | 9160 | 60810 | 22940 | 0.65 |
| 190.5 | 215.9 | ||||||
If you have need ,welcome to customize according to your drawings or samples.
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