NSK7906A5TYSULP4Super-Precision Angular Contact Ball Bearing – 30 mm ID, 47 mm OD, 9 mm Width, Open, 25° Contact Angle, Light Preload, P4

Product Description

What this part is:

NSK 7906A5TYSULP4 is a single-row super-precision angular contact ball bearing, ISO 71906 size, straight bore, open both faces. Series: ISO 719. Base Number: 71906. Bore Diameter: 30 mm. Outside Diameter: 47 mm. Overall Width: 9 mm. Contact Angle: 25°. Cage Type: Ball-guided. Preload: Light. Precision Class: P4, ABEC 7. Closure Type: Open. Unit Quantity: 1 Pc.

Decoding the designation:

7906 — NSK 7900 series, ISO 71906 size, 30 mm bore.

A5 — 25° contact angle.

TY — ball-guided cage.

SUL — single bearing, universally ground, light preload.

P4 — ISO tolerance class 4, equivalent to ABEC 7.

Specifications:

Dynamic Load Rating Cr: 9.90 kN. Static Load Rating C0r: 5.95 kN. Limiting Speed: 26,000 rpm on grease, 39,000 rpm on oil-air lubrication. Effective Load Centre a: 13.5 mm. Contact Angle: 25°. Preload: Light. Mounting Arrangement: Universal. Precision Class: P4, ABEC 7. Rolling Elements: Steel balls. Bearing Material: Chrome bearing steel. Number Of Rows: 1. Mass: 0.050 kg (0.110 lb). Grease Charge: 0.29 g per bearing. Harmonization Code: 8482.10.50.

Dimensions and mounting:

Bore Diameter: 30 mm (1.1811 in). Outside Diameter: 47 mm (1.8504 in). Overall Width: 9 mm (0.3543 in). Shaft Abutment Diameter da: 32.5 mm minimum. Housing Abutment Diameter Da: 44.5 mm maximum. Housing Fillet Radius ra: 0.3 mm maximum. Chamfer r: 0.3 mm minimum. Chamfer r1: 0.15 mm minimum. A universally ground bearing pairs with any other bearing of the same designation back-to-back, face-to-face or in tandem.

Compatibility and replacement:

Same 30 x 47 x 9 mm size at 25° and light preload: SKF 71906 ACD/P4ADGA. Related: FAG HCB71906-E-T-P4S, same envelope and angle with ceramic balls; Fafnir 3MM9306WICRDUL, the Timken series for this envelope. Searchable forms: 7906A5TYSULP4, 7906A5TYDULP4, 7906-A5-TY-SUL-P4, 7906-A5-TY-DUL-P4, 71906ACD.

Frequently asked questions:

What is the contact angle of the NSK 7906A5TYSULP4?

Contact Angle: 25°, from the A5 code.

What are its load ratings?

Dynamic Load Rating Cr: 9.90 kN. Static Load Rating C0r: 5.95 kN.

What is the limiting speed?

26,000 rpm on grease and 39,000 rpm on oil-air lubrication.