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Quick Details

Type: Needle
Place of Origin: China (Mainland)
Number of Row: Single Row
Seals Type: Open
Precision Rating: P0 P6 P5 P4 P2
Model Number: NA4904
Outside Diameter: 25 mm
Bore Size: 20 mm
Brand Name: BCHH or OEM
Size: 20*25*37mm
Material: Chrome Steel/GCr15/52100/SUJ2
Cage material: steel, nylon
Hardness: HRC60~66
Quality standard: ISO9001:2008
Application: Machine tool, Metallurgy, rolling mill, mining machinery

Specifications

Best sale 20*25*37mm needle roller bearing NA4904

 

Needle roller bearings are roller bearings with cylindrical rollers that are small in diameter. In spite of their low cross section, needle roller bearings have a high load carrying capacity and are therefore extremely suitable for bearing arrangements where radial space is limited. 

 

the outer rings of this needle bearings and bearings case are interference fitted without axial fixed settings. the efficient capacity can be maintained even if in the condition of high speed and huge loading capacity. 


Features of needle roller bearing types:

Drawn cup needle roller bearing HK, BK, MFY, SCE, BK, RS, F, MF, FY
Radial needle roller and cage assemblies K, KZK, KNL, K..ZW, KBK
Needle roller bearing NK, NKS, RNA49, RNA69, RNAO, NKI, NKIS, NA49, NA69, NAV, RNAV, RNA49..RS, RNA49..2RS
Inner ring IR, LR
Yoke type track rollers RSTO, RNA22..2RSX, NATV, STO, NA22..2RS, NATV..PP, STO..X, NUTR, RNA22..2RS, NATR
Curve rollers, cam follower bearing KR, KRV, KRVE..PP, KR..PP, KRV..PP, NUKR, KRE..PP, KRVE, NUKRE
Combined radial thrust bearing NKIA, NKX, NKX..Z, NKIB, NKXR, KNXR..Z, NX, NX..Z
Axial bearing AXK, AXW
One-way clutch needle roller bearing HF, HFL

 

 

Our Services

 1.Strict control in produce for High quality as a manufacture

2.Competitive price with prompt delivery

3.Excellent service with many professional sales and engineers

4.OEM manufacturing supplied (Including clients' own brand)

5.Suitable packing according to customer's requirements

Features of needle roller bearing types:

Drawn cup needle roller bearing HK, BK, MFY, SCE, BK, RS, F, MF, FY
Radial needle roller and cage assemblies K, KZK, KNL, K..ZW, KBK
Needle roller bearing NK, NKS, RNA49, RNA69, RNAO, NKI, NKIS, NA49, NA69, NAV, RNAV, RNA49..RS, RNA49..2RS
Inner ring IR, LR
Yoke type track rollers RSTO, RNA22..2RSX, NATV, STO, NA22..2RS, NATV..PP, STO..X, NUTR, RNA22..2RS, NATR
Curve rollers, cam follower bearing KR, KRV, KRVE..PP, KR..PP, KRV..PP, NUKR, KRE..PP, KRVE, NUKRE
Combined radial thrust bearing NKIA, NKX, NKX..Z, NKIB, NKXR, KNXR..Z, NX, NX..Z
Axial bearing AXK, AXW
One-way clutch needle roller bearing HF, HFL

 

 

Our Services

 1.Strict control in produce for High quality as a manufacture

2.Competitive price with prompt delivery

3.Excellent service with many professional sales and engineers

4.OEM manufacturing supplied (Including clients' own brand)

5.Suitable packing according to customer's requirement

Packing&Shipment
Best sale 202537mm needle roller bearing NA4904