INANA4909-XLMachined Needle Roller Bearing with Inner Ring — 45 mm ID, 68 mm OD, 22 mm Width, Open, Single Row, X-life

Product Description

What this part is:

INA NA4909-XL is a single-row machined needle roller bearing supplied with its own inner ring, open, X-life design. Unit Quantity: 1 Pc. One bearing comprises the machined outer ring, the caged needle complement and the separable inner ring.

Decoding the designation:

NA — machined needle roller bearing supplied complete with an inner ring. The same bearing without the inner ring is an RNA4909.

49 — dimension series 49.

09 — bore code, 09 x 5 = 45 mm.

XL — X-life execution.

Specifications:

Bore Diameter: 45 mm. Outside Diameter: 68 mm. Width: 22 mm. Rolling Elements: needle rollers. Closure Type: Open. Number Of Rows: 1. Dynamic Load Rating: 51 kN. Static Load Rating: 73 kN. Limiting Speed: 8,600 rpm. Standard: DIN 617 / ISO 1206.

Dimensions and mounting:

Bore: 45 mm on the supplied inner ring. Outside Diameter: 68 mm. Width: 22 mm across both rings. Radial section: 11.5 mm. Boundary dimensions follow DIN 617 and ISO 1206.

Compatibility and replacement:

Cross-Reference 1: IKO NA4909. Cross-Reference 2: SKF NA4909. Cross-Reference 3: NTN NA4909. Cross-Reference 4: INA NA4909-RSR-XL – sealed, not open. Cross-Reference 5: INA RNA4909 – no inner ring, runs on hardened shaft. MPN variants: NA4909-XL, NA4909XL, NA-4909-XL, NA 49/09 XL, NA4909, NA 4909 XL EN.

Frequently asked questions:

What size is the INA NA4909-XL?

It is a machined needle roller bearing with inner ring: 45 mm bore, 68 mm outside diameter, 22 mm wide, single row, open.

What are the load ratings and speed of the NA4909-XL?

Dynamic Load Rating: 51 kN. Static Load Rating: 73 kN. Limiting Speed: 8,600 rpm.

What does the NA prefix mean?

NA is INA’s machined needle roller bearing with an inner ring. Without the inner ring the same series is RNA. XL marks the X-life execution.