Technical data
24 parametersIdentification
- Manufacturer
- INA
- Type
- Needle roller bearing
- Part number (SKU)
- NA4903-2RSR-XL#N1>1
- EAN
- 4012802701760
Dimensions
- Bore d
- 17 mm
- Outside diameter D
- 30 mm
- Mass
- 40 g
Load ratings and operation
- Dynamic load rating C
- 10000 N
- Static load rating C₀
- 11000 N
- Sealing
- 2RSR
Full manufacturer specification14 parameters · expand
- Category
- XL
- Coating
- without
- Fatigue load limit, radial
- 2220.0 N
- Inner ring raceway diameter
- 22.0 mm
- Limiting speed for grease lubrication
- 12000.0 1/min
- Max. operating temperature
- 100.0 °C
- Min. operating temperature
- -20.0 °C
- Minimum chamfer
- 0.3 mm
- Outer ring width
- 13.0 mm
- PFAS
- no
- REACH
- REACH compliant
- RoHS
- RoHS compliant
- Sealing
- 2RSR
- Width, inner ring
- 14.0 mm
Classification
- Manufacturer category
- Rolling and Plain Bearings › Roller Bearings › Needle Roller Bearings › Machined Needle Roller Bearings
- eCl@ss class
- 23-05-09-07
- UNSPSC
- 31171512
Description
This needle roller bearing carries a full complement of needle rollers guided in dimension series 49, giving high radial load capacity within a compact cross-section relative to its bore. Bore diameter is 17.0 mm, outside diameter 30.0 mm, and net mass is 0.04 kg. The bearing type is fitted with a solid inner ring, allowing direct mounting on a shaft without an additional inner ring component. Sealing is provided on both sides by lip seals (2RSR), retaining grease inside the bearing and preventing ingress of dirt and moisture, which suits applications where a compact radial bearing with limited installation space is required and where the shaft and housing seats can be held to the tolerances needed for a needle roller bearing of this design.
The same bearing from other manufacturers (2 designations)
Same size and design — suffix notation differs between brands.
INA
NA4903-2RSR-XL
original — this page
equivalent designation
NSK
NA4903TT
NTN
NA4903LL
This is a dimensional and design equivalent, not the same product. If in doubt, ask us before ordering.
NA4903-2RSR-XL
Common designation: NA4903 2RS
Needle roller bearing
⌀17 × 30 mm
od EUR 19.58net
+ VAT 23% = EUR 24.08 gross
This item is brought in to order (about 10 working days) and we sell it to business customers. Open a business account.
Cheaper in larger quantities
| from 5 pcs | EUR 19.19 | −2% |
| from 10 pcs | EUR 18.99 | −3% |
| from 25 pcs | EUR 18.60 | −5% |
| from 50 pcs | EUR 18.21 | −7% |
Our own item, temporarily out of stock — write to us for a date.
Shipping within the EU: DHL, GLS, from EUR 13.16 net. Transit time 3–5 business days after dispatch. Shipping and returns →
Buying for a company?
Open a business account →Documentation
Datasheet (PDF)RoHS / REACH compliance declaration (PDF)Opening a document for the first time can take up to a minute while the manufacturer prepares it.
