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Le roulement à rouleaux à aiguille
Created with Pixso. GQZ RNA69/32 Double Row Machined Needle Roller Bearing 32×47×30mm Without Inner Ring For Compact Transmission Devices

GQZ RNA69/32 Double Row Machined Needle Roller Bearing 32×47×30mm Without Inner Ring For Compact Transmission Devices

Nom De La Marque: GQZ
Numéro De Modèle: RNA69/32
Nombre De Pièces: 100.PCS
Prix: 3.1-4.8$
Délai De Livraison: 5 jours ouvrables
Conditions De Paiement: T/T, Western Union, Paypal, MoneyGram
Informations détaillées
Lieu d'origine:
Chine
Certification:
ISO9001/ISO14001/GJB9001
Diamètre de goujon:
20 millimètres
Code de niveau de vibration:
V1, V2.V3
Diamètre extérieur:
Varie (par exemple, 20 mm - 120 mm)
Vitesse maximale:
Jusqu'à 20 000 tr/min selon la taille
Exemple de commande:
accepter
État de l'article:
100% neuf et prêt à être expédié
Masse:
0,04 kg
Humeur fonctionnante:
-25°C | +120°C
ApplicationExcavation:
Machinerie
Taille:
22x28x12mm
Hauteur:
36 millimètres
Bruit:
Z1, Z2, Z3
Action:
En stock
Numéro de modèle:
HK1512
Direction:
Double direction
Matériau de roulement:
Acier chromé
CertifiExcavatorion:
ISO-9001
Nombre de rangée:
Une seule rangée
Type de joints:
Ouvrir
Mots-clés:
Les roulements à rouleaux à aiguilles
boîte:
célibataire
Indice de vitesse:
jusqu'à 15 000 tr/min
Numéro d'origine:
Bkm2538uuh
Application:
Machine-outil
Dimension:
170mm*260mm*90mm
Description:
Roulement à rouleaux à aiguille
Dimension extérieure:
27 ~ 73mm
Taille du paquet unique:
0.2X0,3X0,4 cm
Caractéristiques:
Faire pivoter le bruit lisse
Emballage:
Emballage individuel
Taper:
Type de Shell
Précision:
P4
Extérieur:
Facultatif
Coupe dessinée Bk:
roulements à aiguilles avec extrémité fermée
Nom gauche:
Changhaï/Ningbo
Numéro universel:
MB160670
Solutions d'étanchéité:
Ouvrir
Modèle:
30x37x20mm
Délai de mise en œuvre:
Dans les 3 jours
Anneau extérieur:
Pas de bague extérieure
Lubrification:
Lubrification par graisse ou huile
Dispositif:
en acier ou en nylon
Classe de précision:
P0, P6, P5, P4 (varie selon le modèle)
Détails d'emballage:
Boîte en carton standard
Capacité d'approvisionnement:
1000.pcs / mois
Mettre en évidence:

Double Row Needle Roller Bearing 32x47x30mm

,

Machined Needle Roller Bearing without inner ring

,

Needle Roller Bearing for compact transmission

Description du produit
1. Product Overview

RNA69/32 is double row machined needle roller bearing without inner ring, assembled as an integrated unit including flanged outer ring, needle rollers and stamped steel cage. It features compact cross-section, outstanding radial load capacity and structural rigidity. The bearing adopts quenched and ground shaft surface as rolling raceway to save installation space, ideal for compact mechanical structures bearing heavy radial loads.

Get formal quotation within 24 hours after sending your inquiry.

2. Technical Specifications
Parameter Value
Model RNA69/32
Dimensions Fw 32 mm, Outer D 47 mm, Width B 30 mm
Net weight 0.125 kg
Dynamic load rating Cr 41.8 kN
Static load rating Cor 60.2 kN
Limiting speed Grease lubrication 9500 rpm, Oil lubrication 11500 rpm
Structure Double row needle rollers, no inner ring, flanged outer ring with oil groove
Cage Cold stamped steel cage
Material GCr15 chrome bearing steel
Standard clearance C0 normal clearance; C3 enlarged clearance optional
Matching inner ring model IR32×40×30 / LRT324030
Additional Info Complete load parameters and CAD drawings available upon request.
3. Core Advantages
  1. Double row needle roller design delivers higher radial load capacity and rigidity compared with single row needle bearings
  2. Inner ring-free structure greatly reduces radial occupied space for miniaturized mechanical layout
  3. Integrated flanged outer ring stably guides the cage, with built-in oil groove for convenient supplementary lubrication
  4. High-rigidity outer ring can be directly mounted into light alloy housings without deformation
  5. Allows minor bidirectional axial offset between shaft and housing during operation
  6. Standard metric dimension, fully interchangeable with mainstream same-spec needle roller bearings
  7. Customizable options: rubber seals (UU/2RS), high-temperature grease, OEM laser marking, P6/P5/P4 precision grade
    Effectively lower equipment abrasion, vibration and maintenance frequency under heavy working loads.
4. Application Scenarios
  • Industrial gearboxes, speed reducers and transmission assemblies
  • Hydraulic pumps, hydraulic cylinders and control valve actuators
  • Automated production equipment and robot joint rotary parts
  • Construction machinery, agricultural machinery rotating shafts
  • Textile, printing and packaging heavy-duty rotary rollers
  • General compact mechanical components bearing heavy radial loads
5. Why Choose GQZ Bearing

25 years professional manufacturer of machined needle roller bearings

Products exported to more than 50 countries worldwide

Strict inspection on hardness, roundness, load capacity and running smoothness before shipment

24-hour professional technical support for bearing matching and installation guidance

Adequate bulk stock for distributors of gearbox, hydraulic and automation machinery

We provide stable quality, reliable heavy-load performance and long-term cooperative support.

6. Quality Control Process

GCr15 raw material metallurgy and hardness inspection

Complete quenching & tempering heat stabilization treatment

Precision superfinishing grinding for outer ring raceway and flange

Needle roller size sorting and cage assembly tightness testing

Full dimensional tolerance, load and rotational speed performance inspection

7. Request Quotation

If you need RNA69/32 double row inner ringless needle roller bearings:

Send your inquiry to obtain:

  • Fast formal quotation within 24 hours
  • Professional matching inner ring selection advice
  • Custom sealed version and high-load lubrication solutions
  • Competitive factory direct price
    Contact our sales team for complete technical datasheets and formal offer.

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GQZ RNA69/32 Double Row Machined Needle Roller Bearing 32×47×30mm Without Inner Ring For Compact Transmission Devices GQZ RNA69/32 Double Row Machined Needle Roller Bearing 32×47×30mm Without Inner Ring For Compact Transmission Devices GQZ RNA69/32 Double Row Machined Needle Roller Bearing 32×47×30mm Without Inner Ring For Compact Transmission Devices
8. FAQ
Q1: What does RNA stand for?
RNA refers to needle roller bearing without inner ring; NA series is equipped with matched inner ring.
Q2: Exact dimension and matched inner ring model?
Fw32×D47×B30mm; matching inner ring: IR32×40×30 / LRT324030.
Q3: When is a matching inner ring necessary?
If the mating shaft cannot be quenched to HRC60 and mirror superfinished, install separate inner ring as rolling raceway.