SKF7015CTCC78G1Super-Precision Angular Contact Ball Bearing – 75 mm Bore x 115 mm OD x 20 mm Width, Open, 15 Degree, Light Preload

Product Description

What this part is: SKF 7015CTCC78G1 single-row super-precision angular contact ball bearing. Bore: 75 mm. Outside diameter: 115 mm. Width: 20 mm. Series: 70, light section. Bore form: straight. Closure: open on both faces. Rolling elements: high-carbon chrome steel balls. Decoding the designation: Contact Angle: 15°, from the C. Precision Rating: ABEC 5 / P5. Cage: machined phenolic, riding on the outer-ring land. The carton also carries the Fafnir equivalent 2MM9115WI CR and the plain form 7015 C P5, both of which describe the same 15° phenolic-caged execution. The C78 and G1 tokens are carton variant markings and are carried as searchable part-number variants. What these specs mean in practice: Dynamic Load Rating: 54 kN (12,140 lbf). Static Load Rating: 53 kN (11,915 lbf). Limiting Speed: 11,000 rpm. A 15° contact angle trades thrust capacity for speed and radial stiffness, which is why this angle dominates machine-tool spindle positions. An outer-land-riding phenolic cage is light, damps cage chatter and tolerates the high cage velocities that come with an 11,000 rpm rating. Quantity and configuration: Unit Quantity: 1 Pc. Single bearing, supplied open. Preload: light. Mounting Arrangement: universal, so pieces stack back-to-back, face-to-face or in tandem. Item weight: 1.32 lb. Fitting notes: Straight bore, mounted directly on the shaft seat. Faces are universally ground for flush abutment when pieces are stacked. Internal Clearance: N/A on a preloaded execution. Interchange guidance: Fafnir 2MM9115WI CR is the direct 15° phenolic-caged equivalent on the same 75 x 115 x 20 mm envelope. FAG B7015-C-T-P5-UL matches on angle, cage material and precision class. SKF 7015 ACD executions share the envelope at 25° and are a related size.