HC7002-E-T-P4S-K5-DUM
Main technical Specifications
Detailed parameters and installation dimensions:
| Part Number | HC7002-E-T-P4S-K5-DUM |
| Design Type | HC = High Speed Bearings with small balls, Ceramic balls |
| Series | HC70..-E-T-P4S-K5-DUM |
| Bearing Type | Super Precision Hybrid Angular Contact Ball Bearing |
| Contact angle - α | (E) 25 ° |
| Dimension series | 70 (Medium series) |
| Bearing set | DUM |
| Accuracy class | P4S-K5 |
| Seal | Open |
| Arrangement | DU = Set of 2 universal bearings |
| Preload | M = Preload Medium |
| Row No. | Two |
| Bore Type | Z = Cylindrical bore |
| Units | Metric |
| Bearing Mass - m | 0.031 kg | 0.068 lb |
| Cage | T = Laminated fabric, guidance on outer ring |
| Ball Material | Ceramic |
| Ring Material | GCr15SiMn |
| Manufacturer Part Code | HC7002ETP4SK5DUM , HC7002E-T-P4S-K5-DUM |
| Reference From | FAG HC7002-E-T-P4S-K5-DUM |
| Dimension Inside - d φ (mm) | 15 |
| Dimension Outside - D Φ (mm) | 32 |
| Dimension Width - B (mm) | 9 |
| Dimension - r(min.) | 0.3 mm | 0.012 inch |
| Dimension - r1(min.) | 0.3 mm | 0.012 inch |
| Temperature - T(min) | -30°C |
| Temperature - T(max) | +100°C |
| Radial Dynamic Capacity - Cr | 3211 N | 721 lbf |
| Radial static Capacity - C0r | 1183 N | 265 lbf |
| Reference speed (grease) - nB | 79967 min–1 |
| Limiting speed (oil) - nG | 119960 min–1 |
| Mounting dimensions - da(h12) | 19 mm | 0.748 inch |
| Mounting dimensions - Da(H12) | 29 mm | 1.142 inch |
| Mounting dimensions - Etk(nom.) | 22.4 mm | 0.882 inch |
| Preload force - Fv L | 14 N | 3 lbf |
| Preload force - Fv M | 42 N | 9 lbf |
| Preload force - Fv H | 81 N | 18 lbf |
| Axial rigidity - ca L | 28.7 N/μm |
| Axial rigidity - ca M | 46.9 N/μm |
| Axial rigidity - ca H | 60.8 N/μm |
| Lift-off force - KaE L | 37 N | 8 lbf |
| Lift-off force - KaE M | 121 N | 27 lbf |
| Lift-off force - KaE H | 302 N | 67 lbf |
NOTE: All other trademarks are the property of their respective owners, used for the purpose of compatibility description and product identification only. Tradebearings is not affiliated with, endorsed by, or sponsored by the holders of these trademarks.
HC7002-E-T-P4S-K5-DUM refers to a type of HC70..-E-T-P4S-K5-DUM Super Precision Hybrid Angular Contact Ball Bearing, with dimensions 15 mm (Bore) x 32 mm (OD) x 9 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: 79967 rpm, oil speed ratings: 119960 rpm, featuring Two (row) construction, T = Laminated fabric, guidance on outer ring retainer to ensure extended service life, advanced Open, P4S-K5 (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: 3211 N, static radial: 1183 N, ), It weight approximately 0.031 kilogram.
- Min. Order: 1 Piece/(HC7002-E-T-P4S-K5-DUM, 15 = ID, 32 = OD, 9 = B, 0.031 kg) or according to different suppliers
- Price: Different brands, different quality, different HC7002-E-T-P4S-K5-DUM 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
Data Transfering...
✨What are the Benefits of choosing HC7002-E-T-P4S-K5-DUM bearings?
🏭 What are the applications of the HC7002-E-T-P4S-K5-DUM bearing?
📐 How should choose the right model for a Precision spindle bearings?
Following the naming logic of "basic model + suffix," the key steps for selection are as follows:
Step 1: Contact Angle Determines Basic Load-Bearing Direction
Ultra-precision angular contact ball bearings have contact angles indicated by letters following their basic model number:
C = 15° Contact Angle: Suitable for ultra-high-speed rotation, relatively weak axial load-bearing capacity, a typical choice for high-precision, high-speed operation scenarios.
D (or AC) = 25° Contact Angle: General purpose, balancing high speed and axial rigidity.
E (or B) = 40° Contact Angle: Suitable for heavy-duty applications, good axial rigidity, but lower limiting speed.
Step 2: Design Variations Determine Performance Orientation
Ultra-precision spindle bearings have various internal design variations, identified by prefixes or suffixes:
No Code: Standard design, steel balls.
HC: Hybrid ceramic balls (silicon nitride balls + steel rings), enabling higher speeds, electrical insulation, lower heat generation, and longer lifespan.
X-life: Schaeffler's top-quality designation, representing higher load-bearing capacity, lower friction, and longer lifespan.
E: High-performance design, usually indicating superior performance. Internal Geometry
Step 3: Cage Code
Cage material directly affects high-speed performance and operational stability:
T: Laminated phenolic resin cage, outer ring guided (standard high-speed design)
TP: Also phenolic resin cage, but for rolling elements guided
P: Plastic cage (e.g., PEEK material)
G: Solid brass cage, suitable for higher temperatures or special operating conditions
Step 4: Universal Pairing and Preload
Ultra-precision bearings are all universally paired, allowing for arbitrary back-to-back, face-to-face, or tandem configurations. Preload is indicated by the following suffixes:
UL: Universal Light – Suitable for high-speed applications
UM: Universal Medium – Suitable for high-speed applications
UH: Universal Heavy – Suitable for high-rigidity applications
LO: Light Preload
L: Another way to indicate light preload
Step 5: Accuracy Grade
FAG ultra-precision bearing accuracy grade suffixes:
P4: ISO Class 4 accuracy, standard ultra-precision grade
P4S: Schaeffler standard, a higher accuracy grade than P4 (operating accuracy can reach P2 level), the standard configuration for FAG spindle bearings
P2: ISO Class 2 accuracy, the highest grade
Typical Model Interpretation
Using HC7008-E-T-P4S-UL For example:
HC: Hybrid ceramic ball bearing (ceramic ball + steel ring)
7008: 70 series, 40mm inner diameter
E: High-performance design (25° contact angle)
T: Phenolic resin cage, outer ring guided
P4S: Ultra-precision grade (higher than P4)
UL: Universal mating, light preload
This model designation indicates: a 70 series hybrid ceramic ball bearing with a 40mm inner diameter, 25° contact angle, phenolic resin cage, P4S precision grade, universal mating, and light preload—suitable for general applications such as high-speed machining center spindles.
Key Selection Points Summary
Determine Contact Angle: C (15° high speed), D/AC (25° general purpose), E/B (40° heavy load)
Select Material: No designation = steel balls, HC = ceramic balls (higher performance)
Match Cage: T (phenolic resin) suitable for most high-speed applications
Set Preload: UL (light preload) general purpose, UM/UH for high rigidity requirements
Confirm Accuracy: P4S is the standard configuration for FAG ultra-precision bearings
Following the order of "Contact Angle → Material → Cage → Preload → Accuracy" will provide a complete understanding of the FAG ultra-precision angular contact ball bearing models.