RHP7932ETDUMP4Matched Pair Super-Precision Angular Contact Ball Bearings – 160 mm ID, 220 mm OD, 28 mm Width Each, Open, 25° Contact Angle, Phenolic Cage, Medium Preload, 2 Pcs

Product Description

What this part is:

RHP 7932ETDUMP4 super-precision angular contact ball bearings, a matched pair of 2 pieces, single row each, open. Bore Diameter: 160 mm. Outside Diameter: 220 mm. Width: 28 mm per bearing. Contact Angle: 25°. Precision: EP7, equivalent to ABEC 7 and ISO Class 4. Series: 719 extra-light section, also written 71932. Medium preload, machined laminated phenolic cage.

Decoding the designation:

7932 — 160 mm bore in the extra-light section, catalogued as 71932.

E — 25° contact angle.

T — machined laminated phenolic cage, outer-ring guided, rated to 120 °C.

DUM — duplex universally ground pair at medium preload.

P4 — EP7 precision, ABEC 7.

B-7932-X3-TA-DUM-EP7 — RHP B-series form carried on the carton; X3 is the same 25° angle and TA the same phenolic cage.

3MM9332WI-DUM — Fafnir form carried on the carton; 3MM is again 25°.

Specifications:

Bore Diameter: 160 mm. Outside Diameter: 220 mm. Overall Width: 28 mm per bearing. Total Width: 56 mm across the pair. Contact Angle: 25°. Dynamic Load Rating (Cr): 126,000 N. Static Load Rating (C0r): 125,000 N. Permissible Axial Load Pa: 93.5 kN. Limiting Speed: 4,800 rpm grease; 7,400 rpm oil-air. Effective Load Centre a: 58.3 mm. Preload: Medium (DUM), 3,252 N, 592 N/µm axial rigidity across the pair. Item Weight: 3.12 kg (6.88 lb) per bearing. Grease Charge: 16 g per bearing. Cage Material: Phenolic. Cage Type: Outer-ring guided. Precision Class: ABEC 7 / P4. Number Of Rows: 1 per bearing. Closure Type: Open. Unit Quantity: 2 Pcs. Harmonization Code: 8482.10.50.

Dimensions and mounting:

Shaft Abutment Diameter da: 170 mm minimum. Housing Abutment Diameter Da: 210 mm maximum. Housing Abutment Diameter Db: 214 mm maximum. Fillet Radius ra: 2 mm maximum. Fillet Radius rb: 1 mm maximum. Chamfer r: 2 mm minimum. Chamfer r1: 1 mm minimum. Mounting Arrangement: universally ground, back-to-back, face-to-face or tandem.

Compatibility and replacement:

NSK 7932A5TRDUMP4 is the same bearing in NSK’s current scheme (NSK owns RHP): A5 is the 25° angle, TR the outer-ring-guided phenolic cage. Also same envelope and 25° angle: Fafnir 3MM9332WI-DUM, FAG B71932E.T.P4S.DUM, SKF 71932 ACD/P4A with its own preload suffix. Same envelope at 15°: SKF 71932 CD and RHP 7932X2.

Frequently asked questions:

What are the dimensions of the RHP 7932ETDUMP4?

Bore 160 mm, outside diameter 220 mm, width 28 mm per bearing and 56 mm across the pair.

What are the load ratings and speeds?

Dynamic load rating 126,000 N and static load rating 125,000 N. Limiting speed 4,800 rpm on grease and 7,400 rpm on oil-air.

What does DUM mean in the designation?

DUM is a universally ground duplex pair at medium preload, 3,252 N, mountable back-to-back, face-to-face or in tandem.