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7205ADB is a factory pre-matched duplex angular contact ball bearing set combined by two 7205A single row bearings in back-to-back DB layout, with standard overall dimensions 25*52*30mm and 25° contact angle. Unlike single angular contact bearings that only support one-way axial load, this DB paired structure expands the load center distance, greatly improving overall rigidity and anti-overturning performance, capable of bearing stable radial load and bidirectional axial load simultaneously. The open structure design supports external continuous oil lubriion to meet high-speed and heavy-duty working demands, while precisely ground raceways and brass cage ensure low vibration and quiet stable rotation. Each set is strictly inspected for matching clearance and preload consistency, ready for direct installation without secondary pairing, widely adopted in precision transmission equipment requiring high rotary accuracy and bidirectional load capacity.
*Send inquiry to get full technical datasheet and factory price of 7205ADB bearing.
Key Specifiions
Specifiion
Value
Bearing Model
7205ADB
Bore d
25 mm
Outer diameter D
52 mm
Width B
30 mm
Minimum chamfer r
1 mm
Contact Angle
25°
Dynamic load Cr
32.8 kN
Static load C0r
25.5 kN
Limiting speed (Grease)
7800 r/min
Limiting speed (Oil)
10000 r/min
Approximate weight
0.27 kg
Structure
Double Back-to-Back (DB) Arranged Single Row Angular Contact Bearing
Material
GCr15 Chrome Bearing Steel
Precision Class
P0 / P6 optional
Clearance
Standard clearance, C3 optional
Main Features
25° contact angle, balanced radial and bidirectional axial bearing capacity
DB back-to-back matched duplex set, ultra-high structural rigidity and anti-tilting performance
Open type design, compatible with circulating oil lubriion for high-speed working conditions
Precision brass cage, low friction and stable high-speed operation
Standard clearance as default, C3 enlarged clearance optional for high-temperature environments
P0 precision standard, P6 high precision grade available on customer request
Typical Appliions
Precision CNC machine tool spindles and machining center rotary components
Industrial gearboxes, speed reducers and heavy-duty transmission equipment
Hydraulic pumps, oil compressors and fluid power machinery
Truck and automotive transmission spare parts
Large agricultural machinery rotary devices
Automated production line precision rotating mechanisms
Why Choose GQZ Bearing
Manufactured with high-purity GCr15 chrome bearing steel and standardized heat treatment for superior hardness and wear resistance.
Strict duplex pairing inspection to guarantee uniform preload, consistent rigidity and stable dimensional tolerance.
Large ready stock for 7205ADB matched bearing sets, support small sample orders and fast global bulk delivery.
Provide OEM laser marking, customized packaging and technical installation guidance for wholesale buyers.
*Contact our technical team to select proper contact angle and duplex arrangement for your equipment.
FAQ
Q1: Dimensions of 7205ADB?
A1: Bore 25 mm, Outer diameter 52 mm, Width 30 mm.
Q2: What does ADB stand for?
A2: 25° contact angle, two bearings pre-matched in back-to-back DB arrangement.
Q3: Load performance?
A3: Bear combined radial load and bidirectional axial loads with high rigidity.
Q4: Lubriion way?
A4: Open type, suitable for circulating oil lubriion.
Q5: Precision & clearance options?
A5: P0 standard precision, C3 enlarged clearance available on request.
*Stable stock for single row angular contact bearings, support fast bulk order shipment.
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...