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stainless steel NA4903 sealed needle roller bearings 17*30*13mm for Machinery Construction Farm Industries

stainless steel NA4903 sealed needle roller bearings 17*30*13mm for Machinery Construction Farm Industries

MOQ: 1.PCS
prezzo: $1.9 - $3
Imballaggio standard: Scatola di cartone standard / Custodia per pallet in legno.
Periodo di consegna: Entro 3 giorni lavorativi
Metodo di pagamento: T/T, Western Union, Paypal, MoneyGram
Capacità di approvvigionamento: 100000.pcs / mese
Informazioni dettagliate
Luogo di origine
Germania; Cina; ecc.
Marca
Optional
Certificazione
ISO9000/ISO14001
Numero di modello
NA4903
Materiale:
Cuscinetto in acciaio GCR15
Struttura:
Cuscinetto a rulli di ago
Precisione:
P0; P6
Quantità stock:
6200.PCS
Lubrificazione:
Grassi di olio
Dimensione del foro:
17 mm
Diametro esterno:
30 mm
Misurare:
17*30*13mm
Evidenziare:

stainless steel needle roller bearings

,

sealed needle roller bearings 17x30x13mm

,

needle roller bearings for machinery construction

Descrizione del prodotto
Stainless steel NA4903 sealed needle roller bearings 17*30*13mm for Machinery Construction Farm Industries

NA4903 is a needle roller bearing with a separable design (the inner ring and needle roller assembly can be removed from the outer ring), featuring standard internal clearance, and is typically supplied unlubricated. Its core design relies on needle rollers—small-diameter, high-length rollers that enable it to withstand heavy radial loads while occupying a compact radial space. The separable structure facilitates easy installation, maintenance, and replacement, as the inner components can be handled independently from the outer ring.

The needle rollers are manufactured with high surface finish and dimensional accuracy, ensuring uniform load distribution across their contact areas with the inner and outer rings. This design not only maximizes load-carrying capacity but also minimizes friction operation even under high-speed or intermittent load conditions. The standard internal clearance balances rotational flexibility and load stability, while the unlubricated supply format allows users to select optimal lubrication based on operating temperatures, speeds, and environmental demands.

Sizes:

17mm ID × 30mm OD × 13mm Width

Interchange:

NA4903 (cross-brand equivalents such as SKF NA4903, NSK NA4903, Timken NA4903), and needle roller bearings with identical "17mm ID + 30mm OD + 13mm width" specifications

Applications:

Machinery, Construction, Farm Industries, as well as Automotive Components, Small-Scale Engineering Machinery, and other scenarios where high radial load capacity and compact installation space are critical.

Product Parameters
Parameter Item Details
Product Model NA4903 Needle Roller Bearing
Inner Diameter (ID) 17mm
Outer Diameter (OD) 30mm
Width 13mm
Material Chrome Steel
Relative Model
Bearing Model d D T Weight
(mm) (mm) (mm) (kg)
RNA6901 12 24 22 0.030
RNA6902 15 28 23 0.038
RNA6903 17 30 23 0.040
RNA6904 20 37 30 0.096
RNA6905 25 42 30 0.112
RNA6906 35 47 30 0.126
RNA6907 42 55 36 0.182
RNA6908 48 62 40 0.247
RNA6909 52 68 40 0.334
RNA6910 58 72 40 0.291
RNA6911 63 80 45 0.458
RNA6912 68 85 45 0.490
RNA6913 72 90 45 0.541
RNA6914 80 100 54 0.827
RNA6915 85 105 54 0.866
RNA6916 90 110 54 0.916
RNA6917 100 120 63 1.170
RNA6918 105 125 63 1.21
RNA6919 110 130 63 1.27
RNA6920 100 140 71 -
prodotti
Dettagli dei prodotti
stainless steel NA4903 sealed needle roller bearings 17*30*13mm for Machinery Construction Farm Industries
MOQ: 1.PCS
prezzo: $1.9 - $3
Imballaggio standard: Scatola di cartone standard / Custodia per pallet in legno.
Periodo di consegna: Entro 3 giorni lavorativi
Metodo di pagamento: T/T, Western Union, Paypal, MoneyGram
Capacità di approvvigionamento: 100000.pcs / mese
Informazioni dettagliate
Luogo di origine
Germania; Cina; ecc.
Marca
Optional
Certificazione
ISO9000/ISO14001
Numero di modello
NA4903
Materiale:
Cuscinetto in acciaio GCR15
Struttura:
Cuscinetto a rulli di ago
Precisione:
P0; P6
Quantità stock:
6200.PCS
Lubrificazione:
Grassi di olio
Dimensione del foro:
17 mm
Diametro esterno:
30 mm
Misurare:
17*30*13mm
Quantità di ordine minimo:
1.PCS
Prezzo:
$1.9 - $3
Imballaggi particolari:
Scatola di cartone standard / Custodia per pallet in legno.
Tempi di consegna:
Entro 3 giorni lavorativi
Termini di pagamento:
T/T, Western Union, Paypal, MoneyGram
Capacità di alimentazione:
100000.pcs / mese
Evidenziare

stainless steel needle roller bearings

,

sealed needle roller bearings 17x30x13mm

,

needle roller bearings for machinery construction

Descrizione del prodotto
Stainless steel NA4903 sealed needle roller bearings 17*30*13mm for Machinery Construction Farm Industries

NA4903 is a needle roller bearing with a separable design (the inner ring and needle roller assembly can be removed from the outer ring), featuring standard internal clearance, and is typically supplied unlubricated. Its core design relies on needle rollers—small-diameter, high-length rollers that enable it to withstand heavy radial loads while occupying a compact radial space. The separable structure facilitates easy installation, maintenance, and replacement, as the inner components can be handled independently from the outer ring.

The needle rollers are manufactured with high surface finish and dimensional accuracy, ensuring uniform load distribution across their contact areas with the inner and outer rings. This design not only maximizes load-carrying capacity but also minimizes friction operation even under high-speed or intermittent load conditions. The standard internal clearance balances rotational flexibility and load stability, while the unlubricated supply format allows users to select optimal lubrication based on operating temperatures, speeds, and environmental demands.

Sizes:

17mm ID × 30mm OD × 13mm Width

Interchange:

NA4903 (cross-brand equivalents such as SKF NA4903, NSK NA4903, Timken NA4903), and needle roller bearings with identical "17mm ID + 30mm OD + 13mm width" specifications

Applications:

Machinery, Construction, Farm Industries, as well as Automotive Components, Small-Scale Engineering Machinery, and other scenarios where high radial load capacity and compact installation space are critical.

Product Parameters
Parameter Item Details
Product Model NA4903 Needle Roller Bearing
Inner Diameter (ID) 17mm
Outer Diameter (OD) 30mm
Width 13mm
Material Chrome Steel
Relative Model
Bearing Model d D T Weight
(mm) (mm) (mm) (kg)
RNA6901 12 24 22 0.030
RNA6902 15 28 23 0.038
RNA6903 17 30 23 0.040
RNA6904 20 37 30 0.096
RNA6905 25 42 30 0.112
RNA6906 35 47 30 0.126
RNA6907 42 55 36 0.182
RNA6908 48 62 40 0.247
RNA6909 52 68 40 0.334
RNA6910 58 72 40 0.291
RNA6911 63 80 45 0.458
RNA6912 68 85 45 0.490
RNA6913 72 90 45 0.541
RNA6914 80 100 54 0.827
RNA6915 85 105 54 0.866
RNA6916 90 110 54 0.916
RNA6917 100 120 63 1.170
RNA6918 105 125 63 1.21
RNA6919 110 130 63 1.27
RNA6920 100 140 71 -
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