RHP7008CTSULP0Angular Contact Ball Bearing – 40 mm ID, 68 mm OD, 15 mm Width, Open, 15° Contact Angle, Light Preload, Universally Ground

Product Description

What this part is

RHP 7008CTSULP0 single-row angular contact ball bearing, ISO dimension series 10. Bore: 40 mm. Outside Diameter: 68 mm. Overall Width: 15 mm. Contact Angle: 15°. Cage Material: Phenolic. Cage Type: Machined, outer-ring land-riding. Preload: Light. Mounting Arrangement: Single universal. Bore Type: Straight. Closure Type: Open. Number Of Rows: 1. Rolling Elements: Balls. Bearing Material: Bearing steel. Series: 7000. Country of Origin: United Kingdom.

Decoding the designation

7008 gives the ISO series 10 envelope at a 40 mm bore. C is the contact angle code and fixes it at 15°. T is the phenolic cage. SUL is the grouping and preload: SU for a single universally ground bearing, L for light preload. P0 is the precision grade, normal class. The carton also carries the RHP B-series form B7008X2TULEP7 and the Fafnir cross 2-9108WI-CR-DUL, and all three schemes agree on the 15° angle and the phenolic cage.

What these specs mean in practice

Dynamic Load Rating: 20.6 kN (4,630 lbf). Static Load Rating: 15.9 kN (3,575 lbf). Limiting Speed: 34,000 rpm on oil/air lubrication, 21,000 rpm on grease. Axial Preload: 120 N as a light-preload pair. Axial Stiffness: 51 N/µm as a light-preload pair. Effective Load Centre: 14.7 mm. Item Weight: 0.42 lb (0.189 kg). Maximum Operating Temperature: 120 °C. Minimum Operating Temperature: -30 °C. A 15° contact angle carries more radial load and runs faster than a 25° or 40° angle, at lower thrust capacity, which is what makes it the standard choice for machine-tool spindles and high-speed pump and gearbox positions. The laminated phenolic cage is outer-ring guided, light, and quiet, and it is what sets the 120 °C ceiling.

Quantity and configuration

Unit Quantity: 1 Pc. SU marks a single universally ground bearing: the inner and outer rings are the same width and the faces are pre-adjusted, so two or more mount back-to-back, face-to-face or in tandem and reach the rated light preload when clamped, with no ground spacer.

Fitting notes

Bore Type: Straight, for an interference fit on the shaft with the inner ring rotating. Shaft Abutment Diameter: 46 mm maximum. Housing Abutment Diameters: 62 mm minimum and 63 mm maximum. Bearing Fillet Radius: 1.0 mm minimum on the bore side, 0.6 mm minimum on the outside diameter. Pitch circle diameter for oil/air lubrication jets: 50.0 mm. Internal Volume: 8.2 cm³, which sets the grease charge. Harmonization Code: 8482.10.50.

Interchange guidance

Cross-Reference 1: Fafnir 2MM9108WI-CR-DUL, the same envelope at the same 15° contact angle with a phenolic outer-land-riding cage. Cross-Reference 2: B7008X2TULEP7 (related designation, RHP B-series form of this envelope at ABEC 7). Searchable designation forms: 7008CTSULP0, 7008-C-T-SUL-P0, 7008C, 7008 C TB SUL P0, B7008X2TULEP1 and B7008X2TULEP7.