RHP7216TDULP4Super-Precision Angular Contact Ball Bearing – 80 mm ID, 140 mm OD, 26 mm Width, Open, Light Preload, ABEC 7

Product Description

What this part is: RHP 7216TDULP4 super-precision angular contact ball bearing. Bore: 80 mm. Outside diameter: 140 mm. Width: 26 mm. Series: 7200. Base number: 7216. Single row, open, bearing steel rings and balls. The carton carries three designation schemes for the same bearing: RHP 7216 T DUL P4, RHP B-series 7216TDU EP7, and Fafnir MM216WI CR DUL. Searchable forms include 7216TDULP4, 7216-T-DUL-P4, 7216TDULP4-1/2PR, 7216TDUEP7, 7216B and MM216WICRDUL. Decoding the designation: T, and the CR in the Fafnir form: machined laminated phenolic cage, outer-ring land-riding, rated to 120 °C. DUL: light preload, duplex universally matchable. P4, and the RHP EP7 form: precision class ABEC 7 / ISO P4, stated twice on the carton. -1/2PR: one half of a factory-matched pair. Specifications: Manufacturer: RHP (NSK Europe). Part Number: 7216TDULP4. Base Number: 7216. Bearing Type: super-precision angular contact ball bearing, single row. Series: 7200. Bore: 80 mm. Outside Diameter: 140 mm. Width: 26 mm. Bore Type: straight. Number of Rows: 1. Rolling Elements: balls. Cage Type: machined, outer-ring land-riding. Cage Material: phenolic, fabric-base laminate. Preload: light (DUL). Mounting Arrangement: universally matchable. Precision Class: ABEC 7 / ISO P4 (RHP EP7). Running Accuracy, Radial and Axial Runout: P4. Closure Type: open. Material: bearing steel. Item Weight: 3.20 lb. Maximum Temperature: 120 °C. Minimum Temperature: -30 °C. Total Width Across A Full DUL Pair: 52 mm. Design Units: metric. Country of Origin: United Kingdom. What these specifications mean in practice: ABEC 7 tolerances give tighter running accuracy and lower running vibration than standard class, which is what holds a spindle on centre at speed. The machined phenolic cage is light, self-lubricating and quiet, and suits oil-mist and oil-air lubrication to 120 °C. Ground-in light preload removes shaft play and sets stiffness without shims or spring packs, and because the preload is ground into the ring faces this bearing carries no radial internal clearance class. Quantity and configuration: Unit Quantity: 1 Pc. One bearing: a single half of a factory DUL duplex pair, which is what the -1/2PR marking on the carton records. It mounts as a single bearing or pairs with a second piece of the same designation. Total width across a full DUL pair is 52 mm. Interchange guidance: The 80 x 140 x 26 mm super-precision section is shared with Fafnir 2MM216WI-DUL and SKF 7216 CD/P4A at 15°, and with Fafnir 3MM216WI-DUL and SKF 7216 ACD/P4A at 25°.