7007 ACE/HCP4ADBB Super-precision Angular Contact Ball Bearings, 25° Contact Angle, High-speed E Design

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7007 ACE/HCP4ADBB

Bore Diameter:35 mm

Outside Diameter:62 mm

Width:28 mm

Weight:0.26 kg

Min. Order:1 Piece

The 7007 ACE/HCP4ADBB Ultra-precision angular contact ceramic ball bearings are widely used in high-speed, high-precision applications and situations where there is a risk of shaft current, such as: high-speed machining center spindles, high-speed electric spindles, grinding machine spindles, lathe spindles, ball screw support mechanisms, and medical equipment (high-speed dental drills).

The 7007 ACE/HCP4ADBB bearing is a super-precision angular contact ball bearings with an inner diameter of 35 mm , an outer diameter of 62 mm, a width of 28 mm. It typically uses P4A grade precision tolerances and Carbon chromium steel rings, HC = Balls made of bearing grade silicon nitride Si3N4 (hybrid bearing) rolling mlement. Its dynamic radial rated load is approximately 17649 N, its static radial rated load is approximately 12351 N. open type, together determine its load-bearing capacity, rotational accuracy, and applicable working conditions.

Dimensions:

Inside Diameter:

35 mm

Outside Diameter:

62 mm

Thickness:

28 mm

Weight:

0.26 KG

Performance Data:

Dynamic load Capacity, Radial (Cr):

17649 N

Static load Capacity, Radial (Cor):

12351 N

Reference speed (Grease rpm):

35871

Limiting speed (Oil rpm):

55906

Specifications:

Structure:

Angular Contact

Number of Rows:

Precision Rating:

P4A

Bearing Material:

Carbon chromium steel

Cage Type:

Cotton fabric reinforced phenolic resin or carbon fibre reinforced PEEK, outer ring centred

Seals Type:

open

Number of Balls:

Rolling Mlement Material:

HC = Balls made of bearing grade silicon nitride Si3N4 (hybrid bearing)

Bore Type:

Z = Cylindrical Bore

Operating Temperature:

-30 to +110 °C

System of Measurement:

Metric

Series:

70..-ACE/HCP4A

Rolling Element:

balls

Transaction Information:

Transport Package:

Standard Export Package

Service:

7*24 hour

Shipping Ways:

by Sea or Air

Country of Origin:

china

Stock:

100 Piece

Port:

Tianjin, Shanghai, Shenzhen, Guangzhou or Qingdao

Payment term:

by T/T in advance

Delivery time:

2-3 days for stock, 25-30 days for bulk production

Detailed description

7007 ACE/HCP4ADBB bearings ( 35 mm x 62 mm x 28 mm) have the advantages of ceramic balls materials, high speed, ultra-high precision and high thermal stability, corrosion resistant, non-magnetic, and are therefore widely used in the Machine tool spindles, high-speed electric spindles, precision instruments, aerospace and semiconductor equipment.

Part Number	7007 ACE/HCP4ADBB
Bearing Type	super-precision angular contact ball bearings
Internal design	ACE = 25° contact angle, high-speed E design
Series	70..-ACE/HCP4A
Weight [kg]	0.26
Units	Metric
Contact type	2-point contact
Accuracy class	P4A
Rows NO.	2
Cage	Cotton fabric reinforced phenolic resin or carbon fibre reinforced PEEK, outer ring centred
Dimension series	ISO dimension series 10
Contact angle - α	25 °
Manufacturer Part Code	7007ACE/HCP4ADBB
Bore Type	Z = Cylindrical Bore
Ring material	Carbon chromium steel
Ball material	HC = Balls made of bearing grade silicon nitride Si3N4 (hybrid bearing)
Balls qty（single row）	17
Temperature - T(min) [°C]	-30
Temperature - T(max) [°C]	+110
Bearing set arrangement and preload	DBB = Set of two bearings arranged back-to-back < >, Light preload
Ring type	inner rings(1 piece), outer rings(1 piece)
Load Direction	Angular Contact
Seal type	open
Grease quantity - G_ref [cm³]	2.4
Dimension
d φ Inside [inch]	1.378
D Φ Outside [inch]	2.441
B Width [inch]	1.102
r₁,r₂(min.) Chamfer [inch]	0.039
r₃,r₄(min.) Chamfer [inch]	0.024
r_a(max.) Fillet [inch]	0.039
r_b(max.) Fillet [inch]	0.024
d₁ [inch]	1.720
d₂ [inch]	1.638
D₁ [inch]	2.161
D₂ [inch]	2.161
Balls diameter [inch]	0.281
Performance (Load Capacity and speeds)
C_r Dynamic Radial [lbf]	3967
C_0r Static Radial [lbf]	2776
P_u Fatigue Radial [lbf]	85
Attainable speeds (Grease) [r/min]	35871
Attainable speeds (Oil-air) [r/min]	55906
Abutment dimensions
d_a(min.) [inch]	1.559
d_b(min.) [inch]	1.559
D_a(max.) [inch]	2.260
D_b(max.) [inch]	2.276
d_n [inch]	1.795

The 7007 ACE/HCP4ADBB Ultra-precision angular contact ceramic ball bearings are primarily composed of high-precision bearing steel inner and outer rings, silicon nitride ceramic balls, and a cage. The cage is available in ball-guided polyamide (silent series) or brass. Contact angles are available in various specifications, including 15°, 25°, and 40°, with precision grades reaching P4 and above.

Ultra-precision angular contact ceramic ball bearings feature low-density ceramic balls, resulting in low centrifugal force, significantly improved limiting speed, and lower heat generation. The electrical insulation properties of the ceramic material effectively prevent electrolytic corrosion, extending bearing life. The silent series uses ball-guided polyamide cages to reduce vibration and noise, and optimized tolerances ensure more uniform load distribution and superior radial stiffness in bearing groups.

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High quality 7007 ACE/HCP4ADBB ( 0.26 kg Mass, ID: 35 mm OD: 62 mm WD: 28 mm , 70..-ACE/HCP4A Series , 2 Rows , P4A Accuracy Class , Carbon chromium steel Material , 17649 Radial dynamic , 12351 Radial static ), Just click the button " Contact Now " to mention your purchase Requirement , Quantity and Contact Method of your requested Bearing Item No. 7007 ACE/HCP4ADBB. then click the button " Send " The web site will make your purchasing information sent to the supplier's mailbox, who will come to contact you upon they get your information at the first time.

7007 ACE/HCP4ADBB Super-precision Angular Contact Ball Bearings, 25° Contact Angle, High-speed E Design

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