SKF 71938ACD/P4A Super-precision angular contact ball bearing
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Product Description
SKF 71938ACD/P4A super-precision angular contact ball bearing. Super-precision (ISO 492 P4A / P2A) single-row angular contact ball bearing for machine-tool spindles, high-speed pump rotors, precision index tables. Contact angle 15° (E / 7000C) or 25° (7000A / ACD). Standard cage TN9 (nylon) or T (fabric-reinforced phenolic) for the highest speed ratings. Universally-matched sets available for back-to-back, face-to-face or tandem pair mounting.
Technical Specifications
- Type
- Super-precision angular contact ball bearing
- Designation
- SKF 71938ACD/P4A
- Bore d
- 190 mm
- HS code
- 8482.10
- Bore diameter
- 190 mm
- Outside diameter
- 260 mm
- Width
- 33 mm
- Contact angle
- 25 °
- Basic dynamic load rating
- 163 kN
- Basic static load rating
- 208 kN
- Attainable speed for grease lubrication
- 4500 r/min
- Attainable speed for oil-air lubrication
- 6700 r/min
- Contact type
- Normal contact (two-point contact)
- Number of rows
- 1
- Ring type
- One-piece inner and outer rings
- Design
- High-capacity D
- Universal matching bearing
- No
- Matched arrangement
- No
- Matched condition (axial clearance/ preload)
- Not applicable
- Tolerance class
- P4A
- Material, bearing
- Bearing steel
- Coating
- Without
- Sealing
- Without
- Lubricant
- None
- Indicative carbon footprint for new product
- 16 kg CO2e
- Product net weight
- 4.33 kg
- eClass code
- 23-05-08-04
- UNSPSC code
- 31171531
Standards & Compliance
- Standard
- SKF designation convention (see description for governing ISO / DIN)
- Material
- As declared by SKF designation suffix
- Temperature Range
- Per SKF product data
- HS Code
- 8482.10
Cross References
- FAG 719384
- NSK 719384
- GMN 719384
- Timken 719384
- Koyo 719384
- Equivalent: 719384 (FAG)
- Equivalent: 719384 (NSK)
- Equivalent: 719384 (GMN)
- Equivalent: 719384 (Timken)
- Equivalent: 719384 (Koyo)
Compatibility & Fitment
Interchange with peer OEM equivalents on identical boundary plan and execution — confirm cage, clearance, sealing and precision-class suffix before substitution.
Product Documentation
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Technical guides
- Angular Contact Ball Bearing Finder — by Bore and Series (72, 73, 70, 718/719 Super-Precision, Double Row 32/33, QJ Four-Point) SKF
- SKF 81xxx Cylindrical Roller Thrust Bearing — Dimensions, Load Ratings & Interchange (81102 to 81140)
- SKF Deep Groove Ball Bearing Reference — 6000 / 6200 / 6300 / 6400 Series (Dimensions, Load Ratings, Interchange to FAG NSK NTN Timken)
Catalogue entry last verified: 2026-08-13. A manufacturer datasheet is attached to this entry — confirm application-critical values against it.
Frequently asked questions
- Where can I buy 71938ACD/P4A?
- 71938ACD/P4A can be ordered from cballast.com as a SKF catalogue item: request a quotation on this page or email sales@cballast.com, and the order ships worldwide.
- What is the manufacturer part number for this SKF product?
- The manufacturer part number is 71938ACD/P4A.
- What is the HS code for 71938ACD/P4A?
- The customs tariff (HS) code for 71938ACD/P4A is 8482.10.
- Who manufactures 71938ACD/P4A?
- 71938ACD/P4A is a SKF product in the Bearings & Power Transmission range.
- Is a datasheet available for 71938ACD/P4A?
- Yes — the 71938ACD/P4A datasheet can be viewed and downloaded on this page.
- What is the minimum order quantity for 71938ACD/P4A?
- The minimum order quantity is 1.
- Is 71938ACD/P4A available?
- Yes — 71938ACD/P4A is available to order: fulfilment is from supplier stock in cBallast's European network, dispatched directly from the warehouse to the customer, with the exact lead time stated in the quotation (reply within 24 hours).