RHP7021CTSULP0Angular Contact Ball Bearing – 105 mm Bore, 160 mm OD, 26 mm Width, 15° Contact Angle, Phenolic Cage, Light Preload, Universally Ground

Product Description

What this part is

RHP 7021CTSULP0 single-row angular contact ball bearing, universally ground. Bore Diameter: 105 mm. Outside Diameter: 160 mm. Overall Width: 26 mm. Contact Angle: 15°. Bore Type: Straight. Closure Type: Open. Rolling Elements: Ball. Number Of Rows: 1. Cage Material: Phenolic. Cage Type: Machined, outer-ring guided. Precision Class: ABEC 1 / P0. Preload: Light. Mounting Arrangement: Universally ground single (SU). Series: 70. Base Number: 7021. Bearing Material: Chrome steel. Unit Quantity: 1 Pc.

Decoding the designation

7021 — ISO 70 light dimension series, bore code 21, giving a 105 mm bore in a 160 mm outside diameter, 26 mm wide.

C — 15° contact angle. The alternate RHP B-series form of the same code is X2.

T — machined phenolic cage, outer-ring guided. Written TA in the B-series form.

SU — universal face control, so any two bearings from the range stack into a DB, DF or DT set without shims.

L — light preload class. Written UL in the B-series form.

P0 — RHP EP1, ISO normal tolerance class.

What these specs mean in practice

Dynamic Load Rating: 83,500 N. Static Load Rating: 85,000 N. Contact Angle: 15°. Cage Material: Phenolic. Preload: Light. Precision Class: ABEC 1 / P0.

Fifteen degrees is the high-speed spindle angle: most of the capacity goes into radial load, the ball path stays short, and heat generation stays low. The light 70 series keeps a 105 mm shaft inside a 160 mm housing bore in a 26 mm section. A machined phenolic cage rides on the outer ring land, weighs a fraction of a brass cage and carries its own lubricant, which is what makes it the standard spindle cage. Universal face control means the bearing can be stacked in any arrangement and comes up at the light preload when the rings are clamped solid.

Static Load Rating: 85,000 N sits above Dynamic Load Rating: 83,500 N. That crossover is genuine in the RHP 70 series from bore code 20 upward and is what the catalogue publishes.

Mounting data

Straight bore, interference fit on the shaft. The universally ground faces set the light preload across a stacked set; bearing type, angle and preload class must match across the set.

Quantity and configuration

Unit Quantity: 1 Pc. One universally ground single bearing.

Interchange guidance

Same 105 x 160 x 26 mm envelope at the same 15° angle: NSK 7021C, SKF 7021 CD, FAG 7021-C, NTN 7021C, Koyo 7021C, Nachi 7021C, SNR 7021C and Fafnir 2MM9121WI. Those are ABEC 7 / P4 super-precision executions where this one is a normal-class part, so match the class as well as the angle when substituting. RHP 7021E / B7021X3 is the 25° version of the same envelope — a related size with a different thrust-to-radial split.