GMNSuper-Precision Angular Contact Ball Bearing – 65 mm ID, 100 mm OD, 18 mm Width, Open, 15° Contact Angle, PEEK Cage, Light Preload

Product Description

What this part is: GMN S 6013 C TXM super-precision angular contact ball bearing, single row, open. Bore: 65 mm. Outside diameter: 100 mm. Width: 18 mm. Contact angle: 15°. Precision: ABEC 7 (P4) tolerance with ABEC 9 (P2) running accuracy. Ball complement: 23 balls of 9.525 mm diameter on an 82.5 mm pitch circle. Decoding the designation: S: GMN steel-ball spindle bearing series. 6013: 65 mm bore in the 60 dimension series. C: 15° contact angle. TXM: carbon-fibre-reinforced PEEK cage, injection moulded, outer-ring guided and ball-retaining, rated to 250 °C. ABEC7: P4 tolerance class. DUL: universally ground for duplex mounting at light preload. Published ratings: Dynamic load rating C: 34.5 kN. Static load rating C0: 34.5 kN. Static load rating for hybrid execution C0 HY: 24.1 kN. Speed limit: 20,500 rpm on oil, 15,500 rpm on grease. Light-preload axial force Fv: 175 N, with 78 N/µm axial rigidity across a mounted pair. Minimum spring preload at maximum speed Ff: 880 N. Mass: 0.431 kg (0.95 lb). What these specs mean in practice: A 15° contact angle favours speed and radial stiffness over thrust capacity, which is why it is the standard choice for machine-tool spindles and high-speed grinding heads. The PEEK cage carries a 250 °C limit against 120 °C for a laminated phenolic cage, runs cooler through lower friction, and holds grease in its pockets for longer relubrication intervals. Light preload keeps running torque and heat generation down while still removing internal play. Quantity and configuration: 1 Pc. One universally ground bearing from a DUL light-preload pair, per the 1/2PR marking. Universal grinding means any two like bearings mount back-to-back, face-to-face or in tandem and reach the catalogue preload on assembly. Fitting notes: Shaft and housing abutment diameters: 72.0 mm minimum on the shaft, 93.0 mm maximum in the housing. Chamfer limits: ra max 1.1 mm, rb max 0.6 mm. Open bearing, so lubrication and sealing are provided by the spindle assembly. Interchange guidance: Same envelope and contact angle: SKF 7013 CD/P4A, NSK 7013CTYNDULP4, Fafnir 2MM9113WI CR DUL, RHP/NSK 7013C T P4 DUL. Cage material differs between these executions, so speed and temperature limits differ with it.