NSK7008ATYP5Angular Contact Ball Bearing – Straight Bore, 40 mm ID, 68 mm OD, 15 mm Width, Open, 30° Contact Angle, P5 Precision

Product Description

What this part is: NSK 7008ATYP5 super-precision angular contact ball bearing. Bore: 40 mm. Outside diameter: 68 mm. Width: 15 mm. Series: 7000, ISO 70 dimension series. Bore form: straight. Closure: open. Decoding the designation: A: 30° contact angle. TY: ball-guided cage. P5: ISO precision class 5, equivalent to ABEC 5. Searchable forms include 7008ATYP5, 7008-A-TY-P5, 7008A TY P5, 7008A and 7008E. The carton also carries the Fafnir cross-reference 3MM9108WI CR. What these specs mean in practice: Basic dynamic load rating: 23.7 kN. Basic static load rating: 14.6 kN. Limiting speed: 13,900 rpm on grease, 18,600 rpm on oil-air. Permissible axial load: 9.15 kN. Effective load centre: 23.1 mm. A 30° contact angle is the high-thrust execution of this envelope: it carries substantially more axial load and gives higher axial stiffness than a 15° bearing, at a lower speed ceiling. P5 precision holds tighter bore, outside diameter and running-accuracy tolerances, giving closer shaft location and lower running vibration. Quantity and configuration: Single bearing, single row, one piece. Thrust is taken in one direction, so the bearing is conventionally mounted against a second bearing or a shoulder. Fitting notes: Shaft abutment diameter: 46 mm minimum. Housing abutment diameter: 62 mm maximum, 63 mm on the outer shoulder. Shaft fillet radius: 1 mm maximum; housing fillet radius: 0.5 mm maximum. Recommended grease charge: 1.1 g. Interchange guidance: The 40 x 68 x 15 mm envelope is shared with SKF 7008 ACD/P5 at 25° and FAG B7008-C-T-P4S at 15°; both are related sizes rather than interchanges, because the contact angle changes thrust capacity and speed. 7008A5TYP5 at 25° and 7008CTYP5 at 15° are the NSK related sizes.