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{"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"}}
RNA69/32 Double Row Needle Roller Bearing 40x52x36mm Without Inner Ring High Radial Load For Hydraulic Motors Reducers
Product Overview
RNA69/32 is an open double-row solid outer ring needle roller bearing without inner ring, standard dimension 40×52×36 mm. Precisely manufactured from premium GCr15 bearing steel, it adopts stamped steel cage to stably retain two rows of needle rollers inside the integral flanged outer ring.Without independent inner ring, the quenched and precision-ground shaft surface directly acts as the rolling raceway, which greatly saves radial installation space and allows larger-diameter shaft design to improve shaft structural strength. It boasts ultra-high radial load capacity and excellent rotational rigidity. The open structure facilitates regular grease replenishment and maintenance, widely used for compact heavy-duty transmission devices across various industrial fields.
*Send inquiry to get latest factory price and technical datasheet for RNA69/32 needle roller bearing.
Key Specifications
Parameter Item
Specification
Model
RNA69/32
Bearing Type
Double Row Machined Ring Needle Roller Bearing Without Inner Ring
Raceway Diameter (Fw)
40 mm
Outer Diameter (D)
52 mm
Overall Width (C)
36 mm
Min Fillet Radius (r min)
0.6 mm
Basic Dynamic Load Rating (Cr)
55 kN
Basic Static Load Rating (C0r)
90 kN
Limiting Speed (Grease Lubrication)
6700 rpm
Reference Speed
6500 rpm
Cage
Stamped Steel Cage
Structure
Double Row Needle Rollers, Solid Flanged Outer Ring
Seal Type
Open Type, No Seals
Material
GCr15 Bearing Steel
Approx Net Weight
0.167 kg
Operating 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
Q2: What is the difference between RNA69/32 and NA69/32?
A: RNA69/32 has no inner ring and requires hardened ground shaft as rolling raceway; NA69/32 is equipped with complete inner ring for direct installation.
Q3: What surface requirements are needed for the matched shaft?
A: The shaft rolling surface must be quenched to HRC 58~62 and precision ground to avoid premature abrasion.
Q4: What is the grease lubrication limiting speed?
A: Grease lubrication limiting speed: 6700 rpm.
Q5: Can this bearing withstand large axial loads?
A: It is mainly designed for radial loads, only applicable for tiny axial displacement and slight axial loads.
*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...
