7010CE/HCP4ADGB
Main technical Specifications
Detailed parameters and installation dimensions:
| Part Number | 7010CE/HCP4ADGB |
| Bearing Type | super-precision angular contact ball bearings |
| Internal design | CE = 15° contact angle, high-speed E design |
| Series | 70..-CE/HCP4A |
| 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 |
| Ball material | HC = Balls made of bearing grade silicon nitride Si3N4 (hybrid bearing) |
| Contact angle - α | 15 ° |
| Manufacturer Part Code | 7010 CE/HCP4ADGB |
| Dimension | |
| Inside - d φ | 50 mm | 1.969 inch |
| Outside - D Φ | 80 mm | 3.150 inch |
| Width - B | 32 mm | 1.260 inch |
| Chamfer - r1,r2(min.) | 1 mm | 0.039 inch |
| Chamfer - r3,r4(min.) | 0.6 mm | 0.024 inch |
| Fillet - ra(max.) | 1 mm | 0.039 inch |
| Fillet - rb(max.) | 0.6 mm | 0.024 inch |
| d1 | 60.3 mm | 2.374 inch |
| d2 | 57.9 mm | 2.280 inch |
| D1 | 72.9 mm | 2.870 inch |
| D2 | 72.9 mm | 2.870 inch |
| Balls diameter | 7.938 mm | 0.313 inch |
| Properties | |
| Bore Type | Z = Cylindrical Bore |
| Ring material | Carbon chromium steel |
| Balls qty （single） | 21 |
| Temperature - T(min) | -30 °C |
| Temperature - T(max) | +110 °C |
| Bearing Mass - m | 0.46 kg | 1.014 lb |
| Units | Metric |
| Contact type | 2-point contact |
| Bearing set arrangement and preload | DGB = Set of two bearings for universal matching, Light preload |
| Ring type | inner rings(1 piece), outer rings(1 piece) |
| Load Direction | Angular Contact |
| Seal | open |
| Grease quantity - Gref | 4.1 cm3 |
| Calculation coefficient - f0 | 8.2 |
| Performance (Load Capacity and speeds) | |
| Dynamic Radial - Cr | 25390 N | 5707 lbf |
| Static Radial - C0r | 21077 N | 4738 lbf |
| Fatigue Radial - Pu | 638 N | 143 lbf |
| Attainable speeds (Grease) | 29975 r/min |
| Attainable speeds (Oil-air) | 45878 r/min |
| Abutment dimensions | |
| da(min.) | 54.6 mm | 2.150 inch |
| db(min.) | 54.6 mm | 2.150 inch |
| Da(max.) | 75.4 mm | 2.968 inch |
| Db(max.) | 75.8 mm | 2.984 inch |
| dn | 62.3 mm | 2.453 inch |
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7010CE/HCP4ADGB refers to a type of 70..-CE/HCP4A super-precision angular contact ball bearings, with dimensions 50 mm (Bore) x 80 mm (OD) x 32 mm (Width), designed for ceramic balls materials, high speed, ultra-high precision and high thermal stability, corrosion resistant, non-magnetic, primarily used in Machine tool spindle, robot reducer and high-precision machinery, Its normal operating speed can reach: the grease speed ratings: 29975 rpm, oil speed ratings: 45878 rpm, featuring 2 (row) construction, Cotton fabric reinforced phenolic resin or carbon fibre reinforced PEEK, outer ring centred retainer to ensure extended service life, advanced open, P4A (precision) for applications In high-speed, high-precision, high-rigidity, and extreme environments, it provides extremely stable and reliable rotary supports for modern high-end manufacturing, high-tech industries, and high-precision rotating equipment. it's built to handle significant loads (dynamic radial: 25390 N, static radial: 21077 N, ), It weight approximately 0.46 kilogram.
- Min. Order: 1 Piece/(7010CE/HCP4ADGB, 50 = ID, 80 = OD, 32 = B, 0.46 kg) or according to different suppliers
- Price: Different brands, different quality, different 7010CE/HCP4ADGB prices, different suppliers and different quality determine different prices, you can ask the supplier in detail for the price according to your own needs.
- Precision Rating: DIN: P2~P0; ANSI: ABEC9~ABEC1; JIS: JIS~JIS0; ISO: CLASS2~NORMAL CLASS; GB/T30794 B~G
- Inquiry ways: The right of the inquiry form, Email, skype, Whatsapp
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✨What are the Benefits of choosing 7010CE/HCP4ADGB bearings?
🏭 What are the applications of the 7010CE/HCP4ADGB bearing?
📐 How should choose the right model for a Angular contact ball bearings, super-precision?
Step 1: Select Series by Size
Determine the ISO size series based on installation space and load requirements:
718 Series: Ultra-light, extremely low cross-section height, suitable for space-constrained applications.
719 Series: Extremely light, a general-purpose choice, balancing rigidity and speed.
70 Series: Light, the most commonly used series, with a wide range of applications.
72 Series: Robust, largest cross-section, suitable for heavy-duty, relatively low-speed applications.
Step 2: Select Internal Design by Working Condition (Crucial)
This is the core of SKF selection; different suffixes correspond to different performance orientations:
High Load Capacity D Design: Suffix CD (15° contact angle) or ACD (25° contact angle). Utilizes a large ball design, offering the highest rigidity and load-bearing capacity, suitable for general-purpose machine tool spindles such as machining centers and lathes.
High Speed E Design: Suffix CE (15°), FE (18°), or ACE (25°). Featuring a small, multi-ball design, this bearing boasts higher speed capabilities than the D design, suitable for ultra-high-speed applications such as electric spindles and PCB drilling.
High-Speed B Design: Suffixes CB (15°), FB (18°), or ACB (25°). Smaller and lighter balls, suitable for extremely high speeds and light loads.
UltraFast A Design: Suffix AB (20° contact angle). Available only with hybrid ceramic balls, designed specifically for electric spindles demanding extreme speeds.
Sealed W Design: Suffix FW (18° contact angle). Available only with hybrid ceramic balls, featuring double-sided sealing and lifetime lubrication, suitable for medium-to-high-speed, maintenance-free equipment such as woodworking machinery.
Step 3: Identifying the Seal and Suffix
Seal Identification (Prefix): Models starting with S indicate double-sided sealing (e.g., S7010), pre-filled with grease at the factory, requiring no maintenance for life. Those without S are open bearings.
Material: HC indicates hybrid ceramic balls (ceramic balls + steel rings), enabling higher speeds, electrical insulation, and longer lifespan.
Preload (universal pairing): GA (ultra-light preload), GB (light preload), GC (medium preload). This is a suffix for a single bearing, indicating that the bearing can be arbitrarily paired and combined to achieve a specified preload.
Precision: P4 (ISO Class 4, standard ultra-precision), P4A (operating precision higher than P4), P2 (highest grade).
Arrangement (pair/group suffix): DB (back-to-back), DF (face-to-face), DT (tandem), QBC (quadruple, tandem back-to-back configuration), etc.
Typical Model Explanation
Taking S7010 ACD/HCP4A QBC C as an example:
S: Double-sided seal (lifetime lubrication)
7010: 70 series, 50mm inner diameter
ACD: 25° contact angle, D design (high load capacity)
HC: Hybrid ceramic balls
P4A: Precision grade (super P4)
QBC: Quadruple bearing assembly, tandem back-to-back configuration
C: Medium preload (for heavy preload)
Taking 71922 CDGB TNHA/PA9A L as an example:
71922: 719 series, 110mm inner diameter
CD: 15° contact angle, D design (high load capacity)
GB: Light preload (universal matching)
TNHA: Glass fiber reinforced PEEK cage, outer ring centering
PA9A: Precision grade (ISO) Level 2)
L: Light preload (for triple/quadruple units only)
Selection Key Points Summary
First determine the series: 718/719/70/72
Then determine the design: CD/ACD (high load capacity) or CE/ACE (high speed) or FW (sealing) or AB (UltraFast)
Confirm the seal: Select the S prefix for lifetime lubrication
Optional suffixes: Material HC, Preload GA/GB/GC, Accuracy P4/P4A, Arrangement DB/DF/DT/QBC