X-type four point contact ball bearing - KA series

KA050XP0 ultra thin wall four point contact ball bearing

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KA050XP0 ultra thin wall four point contact ball bearing

Metric Dimensions (mm)
Bore d127mmBearing inner bore
Outer Dia. D139.7mmBearing outer diameter
Width B6.35mmBearing width
Imperial Dimensions (inch)
Imperial Bore5inchImperial inner bore size
Imperial Outer Dia.5.5inchImperial outer diameter size
Imperial Width0.25inchImperial width size
Radial Load (KN)
Dynamic Load Cr3810KNBasic dynamic radial load rating
Static Load C0r7060KNBasic static radial load rating
Axial Load
Axial Cr6220KNBasic dynamic axial load rating
Axial C0r17690KNBasic static axial load rating
Moment Load (N·m)
Moment Cr190N·mBasic dynamic moment load rating
Moment C0r470N·mBasic static moment load rating
Other Parameters
Weight0.104kgBearing weight
KA050XP0 ultra thin wall four point contact ball bearing achieves larger bore dimension while keeping 0.25‑inch equal cross‑section. Chrome steel construction provides dependable multi‑direction combined‑load capacity. Applied for large compact rotary tables,robot joint assemblies and high‑precision optical machinery.

X-type four-point contact ball bearings - KA series feature an optimized four-point contact raceway geometry with a split inner ring and single outer ring design (or vice versa), allowing compact support of radial loads while accommodating high axial loads in both directions with minimal clearance. Available in standard, thin-section, and heavy-duty configurations, with bore diameters ranging from 25mm to 400mm. These bearings deliver high axial rigidity, compact design, reliable moment load capacity, and reduced system weight, making them ideal for slewing rings, industrial robot joints, crane turntables, packaging machinery, and precision rotary tables.

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