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71904 ACE/P4A Super Precision High Speed E Design P4A Precision Grade Angular Contact Ball Bearing

Name: 71904 ACE/P4A Super Precision High Speed E Design P4A Precision Grade Angular Contact Ball Bearing
Brand: Beining Intelligent Technology (Zhejiang) Co., Ltd
SKU: 71904 ACE/P4A
Price: Negotiable USD
Availability: InStock

Product Details

Place of Origin: China

Brand Name: CNBTZC or OEM

Certification: IATF16949:2016

Model Number: 71904 ACE/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: 500000pcs per month

Get Best Price

Product Details

Product Description

Highlight: 
                                                                                                                                                                                                                                                                                    71904 ACE/P4A precision ball bearing, super precision angular contact bearing, single row ball bearing 7904
                      

Part Number:	71904 ACE/P4A Angular Contact Ball Bearing	Structure:	Angular Contact
Seals Type:	Open (2RZ Available)	Ring Type:	One-piece Inner And Outer Rings
Lubrication:	Oil Or Grease	Replaceable With:	SKF, NSK
Coating:	Without	Sealing:	Without
Design:	High-speed E	Contact Type:	Normal Contact (two-point Contact)

Part Number:	71904 ACE/P4A Angular Contact Ball Bearing
Structure:	Angular Contact
Seals Type:	Open (2RZ Available)
Ring Type:	One-piece Inner And Outer Rings
Lubrication:	Oil Or Grease
Replaceable With:	SKF, NSK
Coating:	Without
Sealing:	Without
Design:	High-speed E
Contact Type:	Normal Contact (two-point Contact)

71904 ACE/P4A Super Precision High Speed E Design P4A Precision Grade Angular Contact Ball Bearing

71904 ACE/P4A Super Precision Single Row Angular Contact Ball Bearing 7904

71904 ACE/P4A 20×37×9 mm Super Precision High Capacity Single Row Angular Contact Ball Bearing - High Speed

Super-precision, high-speed E design, single row angular contact ball bearing featuring precise dimensions, high static load capacity, P4A precision grade, delivering superior performance and reliability for applications requiring high rotational accuracy and stability.

Specifications & Dimensions

Part Number	71904 ACE/P4A
Bearing Type	Angular Contact
Measurement Unit	Metric
Inner Bore Diameter (d)	20 mm
Inner Bore Diameter Tolerance	-0.005mm to 0
Outer Bore Diameter (D)	37 mm
Outer Bore Diameter Tolerance	-0.006mm to 0
Width (B)	9 mm
Width Tolerance	-0.2mm to 0
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, oil
Tolerance Class	P4A better than P4 (ABEC-7)
Weight	0.036 kg

Load and Speed Ratings

Dynamic Radial Load	4680 N
Static Radial Load	2240 N
Reference Speed For Grease (r/min)	52,000 rpm
Limiting Speed For Oil (r/min)	78,000 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 71904 ACE/P4A bearing, with its high-speed E-type design, excels in applications requiring high rotational speeds and light loads, such as electric spindles and high-speed machining centers. It enhances stability and machining accuracy in metal cutting machine tools by reducing centrifugal loads and minimizing sensitivity to deformations. This bearing is well-suited for woodworking machinery, plastic and chemical fiber machinery, and printing and packaging industries, where it meets demands for durability, high temperature resistance, and reliable sealing.

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

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