FAGHS7010CTP4SDULHigh Speed Angular Contact Spindle Bearing Set – 50 mm ID, 80 mm OD, 16 mm Width, Open, 15° Contact Angle, Universally Matched Light Preload Pair, P4S

Product Description

What this part is

FAG HS7010.C.T.P4S.DUL high-speed spindle bearing set. Series: HS70. Bore: 50 mm. Outside Diameter: 80 mm. Width: 16 mm per bearing. Single row each, open, straight bore. Country of origin: Germany.

Decoding the designation

HS marks the high-speed execution: small steel balls in a friction-optimised internal geometry. 70 is the light dimension series. C sets the Contact Angle at 15°. T denotes a machined fabric-base laminate phenolic cage. P4S is the tolerance class, held tighter than P4 to ISO 492. DUL sets a universally matched duplex pair at light preload.

What these specs mean in practice

The high-speed geometry uses more, smaller balls than a standard 7010, which trades load capacity for speed: this section reaches 38,000 rpm on oil and 24,000 rpm on grease. Ratings per bearing: Dynamic Load Rating 12.8 kN, Static Load Rating 8.2 kN, Fatigue Load Limit 860 N. Axial rigidity per bearing at light preload: 36 N per micrometre. Preload force per bearing: 45 N. The 15° contact angle favours speed and radial stiffness over thrust capacity, and the phenolic cage keeps cage mass low where a brass cage would limit the speed rating.

Quantity and configuration

Two bearings, supplied as a universally matched duplex set. Universal grinding means the pair mounts back-to-back, face-to-face or in tandem, with light preload set by the ground faces. Stacked width across the pair: 32 mm. Preload is ground into the rings, so this set carries a preload class in place of a running clearance.

Fitting notes

Shaft shoulder diameter: 56 mm to h12. Housing shoulder diameter: 74 mm to H12. Maximum recess radius: 1 mm on the shaft, 0.3 mm on the housing side. Minimum chamfer dimension: 1 mm. Distance between the pressure cone apexes: 16.7 mm. Grease injection pitch diameter: 59.6 mm to 63 mm. Operating temperature range: -30 °C to 100 °C.

Interchange guidance

The single-bearing form of this execution is HS7010-C-T-P4S-UL. Searchable variants: HS7010CTP4SDUL, HS7010-C-T-P4S-DUL, HS 7010 C T P4S DUL. Related sizes on the same envelope, each differing in a way that changes the fit: HCS7010-C-T-P4S-DUL substitutes ceramic balls and seals, and NSK 7010A5TYNDULP4 carries a 25° contact angle. A standard-speed equivalent is SKF 7010 CD/P4ADGA at the same 15° angle and light preload.