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{"title":"NKIB5909-XL Combined Needle Roller Bearing 45x68x34mm NKIB5909 Needle Roller","imgUrl":"https:\/\/img.chinax.com\/nimg\/32\/31\/665228e7592a6993c7e302a61333-200x200-1\/nkib5909_xl_combined_needle_roller_bearing_45x68x34mm_nkib5909_needle_roller_2fangular_contact_ball_bearing.jpg","attrs":{"Brand Name":"As Per Request","Place of Origin":"Germany","Minimum Order Quantity":"2","Price":"$6-10"}}
{"title":"Gcr15 steel Material INA F-211810 Needle Roller Bearing without Inner Ring","imgUrl":"https:\/\/img.chinax.com\/nimg\/80\/e9\/fd5a8945549ca06af557312773a6-200x200-1\/gcr15_steel_material_ina_f_211810_needle_roller_bearing_without_inner_ring_32x42x18mm.jpg","attrs":{"Brand Name":"INA","Model Number":"F-211810","Certifiion":"ISO90001","Place of Origin":"Germany"}}
{"title":"NKIA5901 Combined Needle Roller Bearing 12x24x16mm; Needle Roller\/Angular","imgUrl":"https:\/\/img.chinax.com\/nimg\/f0\/c4\/2e60a695db62ca784d8204c18601-200x200-1\/nkia5901_combined_needle_roller_bearing_12x24x16mm_3b_needle_roller_2fangular_contact_ball_bearing_nkia5901.jpg","attrs":{"Brand Name":"As Per Request","Place of Origin":"Germany","Minimum Order Quantity":"2","Price":"$45-50"}}
RNA6908 Double Row Needle Roller Bearing 48x62x40mm Without Inner Ring High Load For Reducer Hydraulic Motor
Product Overview
RNA6908 is an open double row machined outer ring needle roller bearing without inner ring, with standard dimensions 48*62*40 mm. Manufactured from premium GCr15 bearing steel, it adopts solid machined outer ring and steel stamping cage to hold two rows of needle rollers evenly.Without an independent inner ring, the hardened and ground shaft surface directly serves as the rolling raceway, greatly saving radial installation space. It features ultra-high radial load capacity and structural rigidity, suitable for compact installation positions subjected to heavy radial loads. The open design facilitates grease replenishment and routine maintenance, widely applied in various industrial heavy-duty transmission devices.
*Send inquiry to get latest factory price and technical datasheet for RNA6908 needle roller bearing.
Key Specifications
Parameter Item
Specification
Model
RNA6908
Bearing Type
Double Row Machined Ring Needle Roller Bearing, Without Inner Ring
Roller Path Diameter (Fw)
48 mm
Outer Diameter (D)
62 mm
Overall Width (C)
40 mm
Min Fillet Radius (r min)
0.6 mm
Basic Dynamic Load Rating (Cr)
74 kN
Basic Static Load Rating (C0r)
116 kN
Limiting Speed (Grease Lubrication)
5500 rpm
Limiting Speed (Oil Lubrication)
9200 rpm
Cage
Stamped Steel Cage
Structure
Double Row Needle Rollers, Solid Outer Ring
Seal
Open Type, No Seals
Material
GCr15 Bearing Steel
Approx Net Weight
260 g
Working Temperature
-30℃ ~ +120℃
Main Features
No inner ring design: Compact radial layout, allows thicker shaft to enhance shaft strength.
Double row needle roller arrangement: Extremely high radial load bearing capacity and excellent structural rigidity.
Integral solid outer ring with double side ribs: Limits needle roller displacement, bears slight bidirectional axial force.
Open structure: Convenient for lubricant filling and daily maintenance.
Made of GCr15 steel: High hardness, outstanding wear resistance and long service life.
Low section height: Ideal choice for equipment with limited radial installation space.
Typical Applications
Hydraulic motors, hydraulic pumps and hydraulic system components
Gear reducers, gearboxes and transmission assemblies
Construction machinery, agricultural machinery rotating parts
A: It is mainly designed for radial loads, only suitable for small axial displacement and slight axial loads.
Q6: Is this bearing sealed?
A: It is an open-type bearing without rubber or metal seals, not applicable for dusty or wet harsh environments.
*Place bulk orders for MR series inch needle bearings, enjoy sufficient stock and fast delivery.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Distributor/Wholesaler,Exporter,Trading Company
Year Established:
1989
Total Annual:
1000000-10000000
Employee Number:
10~100
Ecer Certification：
Verified Supplier
Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad... Established in 1999, Wuxi Guangqiang Bearing Trade Co.,Ltd works hard in researching and manufacturing high quality bearings and rely on it's advantages of strong technologies, advanced equipment, professional technical team, quality production and reasonable prices has gain a broad...
