RHP7012ETSULP4Super-Precision Angular Contact Ball Bearing – Straight Bore, 60 mm ID, 95 mm OD, 18 mm Width, Open, 25° Contact Angle, ABEC 7, Light Preload

Product Description

What this part is

RHP 7012ETSULP4 super-precision angular contact ball bearing, 70 dimension series, 60 mm bore x 95 mm outside diameter x 18 mm width. Bore: 60 mm. Outside Diameter: 95 mm. Overall Width: 18 mm. Bore Type: Straight. Number Of Rows: 1. Rolling Elements: Balls. Closure Type: Open. Contact Angle: 25°. Precision Class: ABEC 7 (RHP EP7 / ISO Class 4). Preload: Light. Cage Material: Machined laminated phenolic. Cage Type: Machined, outer-ring guided. Design Units: Metric. Country of Origin: United Kingdom.

Decoding the designation

7012 gives the 70 dimension series and a 60 mm bore. E: 25° contact angle. T: machined laminated phenolic cage, outer-ring guided. SU: single bearing with universally ground faces, so any two or more pieces of the same designation assemble back-to-back, face-to-face or in tandem. L: light preload. P4: RHP EP7, equal to ISO tolerance class 4 and ABEC 7. Searchable variants: 7012E, 7012-E-T-SUL-P4, 7012 E T SUL P4, B7012X3TAULEP7, 3MM9112WI-CR-SUL.

What these specs mean in practice

Dynamic Load Rating: 42.0 kN. Static Load Rating: 29.1 kN. Permissible Axial Load: 23.0 kN. Limiting Speed, oil or oil-air lubrication: 19,400 rpm. Limiting Speed, grease lubrication: 13,000 rpm. Effective Load Centre: 27.1 mm. Item Weight: 0.408 kg (0.90 lb). A 25° contact angle carries more thrust and less speed than a 15° execution of the same envelope, which suits a spindle seeing combined radial and axial load. The machined phenolic cage is light and outer-ring guided, giving stable cage rotation at high speed. Lubricant: grease or oil. Maximum Operating Temperature: 120 °C. Minimum Operating Temperature: -30 °C. Material: Chrome bearing steel rings and balls.

Quantity and configuration

Unit Quantity: 1 Pc. Arrangement: single bearing, universally ground faces. Two or more universally ground pieces of this designation combine to give light preload in a back-to-back, face-to-face or tandem set. Internal Clearance: N/A — face grinding sets the axial position on a universally ground preloaded execution, in place of a radial clearance class.

Fitting notes

Diameter of Shaft Abutment: 67 mm minimum. Diameter of Housing Abutment: 88 mm maximum. Chamfer Dimension: 1.1 mm minimum bore side, 0.6 mm minimum outer side. Maximum Shaft or Housing Fillet Radius: 1 mm. Recommended Grease Quantity: 2.4 g per bearing.

Interchange guidance

Same-specification equivalents: NSK 7012A5TRSULP4, SKF 7012 ACD/P4DGA, FAG B7012-E-T-P4S-UL, Fafnir 3MM9112WI-CR-SUL. RHP B-series designation for the same bearing: B7012X3TAULEP7. A 7012C or B7012-C execution shares the 60 x 95 x 18 mm envelope at a 15° contact angle, which is a related size rather than a substitution.