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71909 ACB/P4A Super Precision Angular Contact Ball Bearing 45x68x12 mm with P4A Precision Grade for High Speed Applications

Name: 71909 ACB/P4A Super Precision Angular Contact Ball Bearing 45x68x12 mm with P4A Precision Grade for High Speed Applications
Brand: Beining Intelligent Technology (Zhejiang) Co., Ltd
SKU: 71909 ACB/P4A
Availability: InStock

Product Details

Place of Origin: China

Brand Name: CNBTZC or OEM

Certification: IATF16949:2016

Model Number: 71909 ACB/P4A

Payment & Shipping Terms

Minimum Order Quantity: 1000

Price: Please contact us,thanks

Packaging Details: plastic bag,box,carton,pallet

Delivery Time: 2-4 weeks

Payment Terms: L/C,T/T

Supply Ability: 200000pcs per month

Get Best Price

Product Details

Product Description

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                                                                                                                                                                                                                                                                                                                                                                                71909 ACB/P4A super precision bearing, single row angular contact ball bearing, 7909 precision ball bearing with warranty
                              

Part Number:	71909 ACB/P4A Angular Contact Ball Bearing	Structure:	Angular Contact
Seals Type:	Open (2RZ Available)	Ring Type:	One-piece Inner And Outer Rings
Lubrication:	Grease,Oil	Replaceable With:	SKF, NSK 7909A5TRP4
Coating:	Without	Sealing:	Without
Design:	High-speed B	Contact Type:	Normal Contact (two-point Contact)

Part Number:	71909 ACB/P4A Angular Contact Ball Bearing
Structure:	Angular Contact
Seals Type:	Open (2RZ Available)
Ring Type:	One-piece Inner And Outer Rings
Lubrication:	Grease,Oil
Replaceable With:	SKF, NSK 7909A5TRP4
Coating:	Without
Sealing:	Without
Design:	High-speed B
Contact Type:	Normal Contact (two-point Contact)

71909 ACB/P4A Super Precision Angular Contact Ball Bearing 45x68x12 mm with P4A Precision Grade for High Speed Applications

71909 ACB/P4A Super Precision Single Row Angular Contact Ball Bearing 7909

71909 ACB/P4A 45×68×12 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing

High Speed - Super-precision, high-speed B design, single row angular contact ball bearing

The 71909 ACB/P4A bearing features a bore diameter of 45 mm, outside diameter of 68 mm, and width of 12 mm. With precise dimensions, high static load capacity, and P4A precision grade, it delivers superior performance and reliability for applications requiring high rotational accuracy and stability.

Technical Specifications

Part Number	71909 ACB/P4A
Bearing Type	Angular Contact
Measurement Unit	Metric
Dimensions	Inner Bore Diameter (d): 45 mm Inner Bore Diameter Tolerance: -0.006mm to 0 Outer Bore Diameter (D): 68 mm Outer Bore Diameter Tolerance: -0.007mm to 0 Width (B): 12 mm Width Tolerance: -0.2mm to 0
Specifications	Contact Angle: 25° (15°, 40° Available) Material: Chrome Steel Cage Material: Phenolic Number of Rows: 1 Single Row Seal Type: Open Temperature Range: -30°C to 150°C Lubrication: Grease or Oil Tolerance Class: P4A better than P4 (ABEC-7) Weight: 0.13 kg Matched Arrangement: No Universal Matching Bearing: No Preload: Not applicable
Load and Speed	Dynamic Radial Load: 7020 N Static Radial Load: 5500 N Reference Speed For Grease: 24,000 rpm Limiting Speed For Oil: 38,000 rpm

Performance Features

Very tight tolerances suitable for precise machinery

Ability to handle both radial and axial loads simultaneously

High-speed operation with stability

Low torque and friction for energy efficiency

Enhanced rigidity for accuracy under heavy loads

Durability with extended service life

Effective performance across wide temperature range

Applications

The 71909 ACB/P4A bearing, as a high-precision angular contact ball bearing, is primarily used in scenarios that require high speed, high rigidity, and precise control.

Precision Machine Tools: CNC machines, grinding, and milling spindles for high accuracy
High-Speed Equipment: Printing machines, welding equipment, and automation systems
Precision Instruments: Testing devices, semiconductor machinery, and lab equipment
Automotive: Gearboxes, transmission systems, and high-temperature engine components
General Machinery: Plastic/rubber processing, hydraulic systems, and food processing equipment

Certifications & Services

CERTIFICATE	RoHS & REACH, IATF16949:2016
Feature	High Speed and Stiffness, High Running Accuracy, High Load Carrying Capacity
Service	OEM&ODM Customized Services
Samples	Please Contact Us
Service	Online Support, Professional Service
Size	Standard, For custom sizes, please contact us
Factory Manufacturer	Yes

If you need more detailed information, feel free to ask!

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