RHP7013TUEP3Super Precision Angular Contact Ball Bearing Pair – Straight Bore, 65 mm ID, 100 mm OD, 18 mm Width, Open, P3 Accuracy Class

Product Description

What this part is

RHP 7013TUEP3 pair of single-row super-precision angular contact ball bearings, made in the United Kingdom. Bore: 65 mm. Outside Diameter: 100 mm. Overall Width: 18 mm. Precision Class: P3, the BS292 EP3 grade. Number Of Rows: 1 per bearing. Rolling Elements: Balls. Bearing Material: Carbon chrome bearing steel to BS970 534A99/535A99, equivalent to SAE 52100, through hardened. Series: 7000, ISO dimension series 10. RHP is an NSK brand. These bearings are used in Promess press and sensor spindles.

Decoding the designation

Reading 7013-TU-EP3: 7 is a single-row angular contact ball bearing, 0 is ISO dimension series 10, the bore code 13 gives a 65 mm bore, T is the laminated phenolic resin cage and EP3 is the BS292 precision grade, which is P3 in RHP’s own scheme.

What the P3 accuracy class buys

Precision Class: P3. P3 is an intermediate grade that pairs P2 running accuracy with P4 external tolerances, so it holds the tight runout of the highest class while keeping the bore and outside diameter tolerances of the standard super-precision grade. Radial Runout Of The Assembled Inner Ring: 2.5 µm. Reference Face Runout With Bore: 1.3 µm. Raceway Groove Runout With Reference Face: 2.5 µm. Radial Runout Of The Assembled Outer Ring: 5 µm. Outer Diameter Runout With Reference Face: 2.5 µm. Deviation Of Mean Bore Diameter: 0 to −5 µm. Deviation Of Mean Outside Diameter: 0 to −7.5 µm. Low runout is what a measuring or sensing spindle is bought for, and it is exactly what P3 delivers.

Cage and temperature

Cage Material: Laminated phenolic resin. Cage Type: Outer-ring guided. Maximum Operating Temperature: 120 °C, the limit set by the phenolic cage. The cage is light and damps well, which keeps running noise and heat generation low.

Mounting data

Bore Type: Straight. Closure Type: Open. Chamfer r min: 1.1 mm. Chamfer r1 min: 0.6 mm. Minimum Shaft Abutment Diameter: 72 mm. Maximum Housing Abutment Diameter: 93 mm. Maximum Outer Ring Abutment Diameter: 95 mm. Recommended shaft fit at P3 is a mean interference of 3 µm, and a locating housing a mean clearance of 5 µm.

Quantity and configuration

Unit Quantity: 2 Pcs. Two bearings on the 65 x 100 x 18 mm envelope, supplied together. The rings are universally faced across this range, so a matched pair mounts back-to-back or face-to-face.

Interchange guidance

The designation is also written 7013TUEP3, 7013-TU-EP3 and 7013 TU EP3. The 7013 envelope of 65 x 100 x 18 mm is shared across the RHP super-precision 70 series, so match the full designation and the accuracy grade together when substituting.