RHP7209X1TDUEP7Angular Contact Ball Bearing – Straight Bore, 45 mm ID, 85 mm OD, 19 mm Width, Open, Light Preload, P4 Super-Precision, Universally Ground.

Product Description

What this part is

RHP 7209X1TDUEP7 super-precision angular contact ball bearing. Series: 7200, ISO dimension series 02. Bore: 45 mm. Outside Diameter: 85 mm. Overall Width: 19 mm. Precision Class: P4. Precision Rating: ABEC 7. Bore Type: Straight. Number Of Rows: 1. Rolling Elements: Ball. Bearing Material: Chrome bearing steel. Closure Type: Open. Item Weight: 0.90 lbs.

Decoding the designation

Cage Material: Phenolic. Cage Type: Machined, outer ring guided. The cage is laminated phenolic resin riding on the outer ring land, a light and quiet construction that carries a maximum recommended operating temperature of 120°C. Preload: Light. Grouping: DU, a universally ground paired unit. Precision Class: P4, published by RHP as EP7 under BS292 and equivalent to ABEC 7 and to ISO Class 4.

What these specs mean in practice

A light preload class sets a modest fixed axial load across the set, which raises running accuracy and stiffness against a lower heat rise than medium or heavy preload. P4 tolerance gives 5µm maximum deviation of mean bore diameter and 4µm radial runout of the assembled inner ring at this size, so shaft location is close and running vibration is low. Max Temp: 120°C.

Mounting dimensions

Minimum shaft abutment diameter: 52 mm. Maximum housing abutment diameter: 78 mm. Maximum outer ring abutment diameter: 80 mm. Bore chamfer r min: 1.1 mm. Outer chamfer r1 min: 0.6 mm.

Quantity and configuration

Unit Quantity: 1 Pc. One universally ground bearing from a DU pair. Mounting Arrangement: Universal — universally ground faces allow it to be set back-to-back, face-to-face or in tandem against a matching bearing.

Searchable variants

7209X1TDUEP7, 7209 X1 T DU EP7, 7209-X1-T-DUL-P4, 7209X1TDULP4, 7209X1TDUEP7-1/2PR. Harmonization Code: 8482.10.50.68.