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Help CenterJA040XP0 Sealed Thin Section Ball Bearing With Size 4×4.5×0.25inch
Product Spotlights
2. radial, bidirectional‑axial and overturning‑moment loads
3. high rotary accuracy and low torque fluctuation
4. double‑sided sealed constant‑cross‑section design, widely used in robot joints, opto‑electronic gimbals, semiconductor equipment, medical machinery and optical inspection machines.
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JA Series Thin Section Ball Bearing Sealed Four Point Contact X-type
Product Overview:
JA‑X series is imperial‑standard Double‑Sealed Constant Cross‑Section Four‑Point‑Contact Ball Bearing (Type‑X) from Kaydon Reali‑Slim portfolio. It is the sealed upgraded variant of open‑type KA‑X bearing, equipped with double‑sided NBR lip‑contact seals. Constant square cross‑section:6.35 mm×6.35 mm. Factory pre‑greased for long‑term maintenance‑free service .
Adopting gothic‑arch Type‑X four‑point‑contact raceway geometry, one single bearing can accommodate radial load, bidirectional axial thrust and overturning‑moment simultaneously. It can replace two back‑to‑back duplex angular‑contact bearings, reducing spacers and fasteners, simplifying mechanical layout and saving axial installation envelope.
Cross‑section dimension remains constant regardless of bore‑size increase, maintaining thin‑wall lightweight profile for large bore sizes. AR0 solid brass cage as standard; glass‑fiber reinforced nylon cage optional. Dual‑side seals prevent ingress of dust, moisture and fine debris, meanwhile retain internal grease to avoid grease leakage. Suitable for compact‑space precision rotary mechanisms under lightly‑contaminated environment. Standard bore range:50.8‑190.5 mm (2‑7.5 inch). Widely applied in medium‑small robot joints, opto‑electronic tracking turntables, radar rotary units, semiconductor inspection equipment, medical‑CT rotary assemblies, automated indexing turntables and optical simulation test platforms.
Applications:
medium‑small lightweight robot joints
opto‑electronic tracking turntables
light‑duty radar rotary mechanisms
medical‑imaging rotary assemblies
medium‑small‑size semiconductor inspection fixtures
precision automated indexing turntables
optical simulation‑test platforms
intelligent‑equipment precision rotary units
packaging‑automation rotary mechanisms.
kaydon thin-section bearings Structure:
Open type deep groove ball bearing
Open type angular contact bearing
Open type four point contact bearing
Sealed type deep groove ball bearing
Sealed four point contact ball bearing
parameter：
| Item No. | Dimension | Basic Cap | Unit | ||||
| ( inch / mm ) |
( N ) | weight | |||||
| d | D | Cor | Cr | Coa |
Ca | Kg | |
| JA020XP0 | 2.0 | 2.5 | 3020 | 1420 | 7600 | 3510 | 0.045 |
| 25.4 | 34.925 | ||||||
| JA025XP0 | 2.5 | 3.0 | 3690 | 1600 | 9290 | 4050 | 0.054 |
| 63.5 | 76.2 | ||||||
| JA030XP0 | 3.0 | 3.5 | 4400 | 1820 | 10980 | 4490 | 0.064 |
| 76.2 | 88.90 | ||||||
| JA035XP0 | 3.5 | 4.0 | 5070 | 2000 | 12670 | 4930 | 0.077 |
| 88.9 | 101.6 | ||||||
| JA040XP0 | 4.0 | 4.5 | 5730 | 2130 | 14310 | 5380 | 0.086 |
| 101.6 | 114.3 | ||||||
| JA042XP0 | 4.25 | 4.75 | 6090 | 2220 | 15160 | 5600 | 0.091 |
| 107.95 | 120.65 | ||||||
| JA045XP0 | 4.50 | 5.0 | 6400 | 2310 | 16000 | 5820 | 0.095 |
| 114.3 | 127.0 | ||||||
| JA047XP0 | 4.75 | 5.25 | 6760 | 2400 | 16850 | 6000 | 0.1 |
| 120.65 | 133.35 | ||||||
| JA050XP0 | 5.0 | 5.5 | 7070 | 2490 | 17690 | 6220 | 0.104 |
| 127.0 | 139.7 | ||||||
| JA055XP0 | 5.5 | 6.0 | 7780 | 2620 | 19380 | 6580 | 0.113 |
| 139.7 | 152.4 | ||||||
| JA060XP0 | 6.0 | 6.5 | 8450 | 2800 | 21070 | 6980 | 0.127 |
| 152.4 | 165.1 | ||||||
| JA065XP0 | 6.5 | 7.0 | 9110 | 2930 | 22760 | 7330 | 0.136 |
| 165.1 | 177.8 | ||||||
If you have need ,welcome to customize according to your drawings or samples.
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