RHPAngular Contact Ball Bearing — 100 mm ID, 150 mm OD, 24 mm Width, Straight Bore, Open, 25° Contact Angle, Phenolic Outer-Ring-Guided Cage, ABEC 3

Product Description

What this part is

RHP 7020-E-T-P6 single-row angular contact ball bearing. Bore: 100 mm (3.9370 in). Outside Diameter: 150 mm (5.9055 in). Overall Width: 24 mm (0.9449 in). Contact Angle: 25°. Precision Class: P6, ABEC 3, RHP class code EP3. Cage Type: Machined, outer ring guided. Cage Material: Laminated phenolic resin. Closure Type: Open. Bore Type: Straight. Rolling Elements: Ball. Number Of Rows: 1. Series: ISO series 10 (70xx). Bearing Material: Carbon chrome bearing steel, BS970 534A99/535A99 or SAE 52100.

Decoding the designation

70 — single-row angular contact ball bearing, ISO dimension series 10.

20 — bore code 20, a 100 mm bore.

E — 25° contact angle, the legacy RHP form of the current A5 suffix.

T — laminated phenolic resin cage, outer ring guided.

P6 — RHP class code EP3, ABEC 3.

B7020X3TAEP3 — the same bearing on the carton in the RHP B-series scheme, where X3 gives the 25° angle, TA the outer-ring-centred phenolic cage and EP3 the precision grade.

Load ratings

Dynamic Load Rating: 71.0 kN (71,000 N / 15,961 lbf). Static Load Rating: 73.5 kN (73,500 N / 16,523 lbf). Effective Load Centre: 41.1 mm. Item Weight: 2.79 lb (1.264 kg).

Mounting dimensions

Shaft Abutment Diameter d1: 109 mm minimum. Housing Abutment Diameter D1: 141 mm maximum. Outer Ring Abutment Diameter D2: 144 mm maximum. Bearing Fillet Radius r: 1.5 mm minimum. Secondary Fillet Radius r1: 1.0 mm minimum. Internal Volume: 53.4 cm3. Pitch Circle Diameter Of Lubrication Jets: 118.6 mm.

What these specs mean in practice

A single-row angular contact ball bearing carries thrust in one direction together with radial load, the thrust path running from the high shoulder of the inner ring to the high shoulder of the outer. A 25° contact angle carries more thrust and less speed than a 15° bearing on the same envelope. The laminated phenolic cage is outer-ring guided, which is light, quiet and stable at speed. P6 holds bore, outside diameter and running accuracy to tighter limits than a normal-class bearing. At bore code 20 the static rating overtakes the dynamic rating: 73.5 kN against 71.0 kN, which is what the catalogue publishes for this size.

Quantity and configuration

Unit Quantity: 1 Pc. A single bearing, ground and supplied loose.

Interchange guidance

NSK 7020A5 is the current designation for the same 25° bearing on this envelope, and B7020X3TAEP3 is the RHP B-series form of this exact part. SKF 7020 AC matches on envelope and 25° angle. The 15° forms 7020-C and B7020X2 share the 100 x 150 x 24 mm envelope at a different angle and are related sizes, as are the P4 and P2 precision grades of the same number.