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SKF71918CDP4ADGAAngular Contact Ball Bearing — Super-Precision, 90 mm ID, 125 mm OD, 18 mm Width, 15° Contact Angle, Extra Light Preload, P4A

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SKF 71918 CD/P4ADGA matched pair of super-precision angular contact bearings, 90 x 125 x 18 mm, 15° angle, extra light preload, P4A. C 47,500 N per bearing.

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$802.20

1 in stock

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Specifications

Key Specifications

MFR / BrandSKF
MPN71918CDP4ADGA
Model71918 C D P4A DGA / 1916HCDUL / 2MM9318WIDUL
Bearing TypeAngular Contact Ball Bearing, Open
ID90 mm
OD125 mm
Width18 mm

Technical Specifications

MaterialSteel
Series71900
PreloadExtra light (DGA)
Total Width36 mm (pair)
Mpn Variants71918 CD/P4ADGA, 71918-CDP4A/DGA, 71918-CD-P4A-DGA, 71918CDP4ADGA, 7918
Precision ClassP4A (ABEC 7 / P4 dimensional, P2 running accuracy)
Dynamic Load Rating47,500 N (per bearing)
Static Load Rating51,000 N (per bearing)
Precision RatingP4A (ABEC 7 / P4 dimensional, P2 running accuracy)
Rolling ElementsBall
Item Weight0.549 kg (1.21 lb) per bearing
Number Of Rows1
Bore TypeStraight
Snap Ring IncludedNo
Harmonization Code8482.10.50
Contact Angle15°
Mounting ArrangementUniversal pair: back-to-back, face-to-face or tandem
Bearing MaterialBearing steel

Cross-References

Cross Reference 1FAG B71918-C-T-P4S-DUL
Cross Reference 2NSK 7918CTYNDULP4
Cross Reference 3NTN 7918CDBL
Cross Reference 4Fafnir 2MM9318WI DUL
Seller Part Number: B-J5#KRKFTY

Product Description

What this part is

SKF 71918 CD/P4ADGA is a matched pair of super-precision, high-capacity single row angular contact ball bearings in the 719 ultra-light series, with a 15° contact angle and extra light preload. The pair is universally matchable and mounts back-to-back, face-to-face or in tandem in machine tool spindles.

Decoding the designation

719 — ISO dimension series 19, ultra-light section.

18 — bore code, 18 x 5 = 90 mm bore.

CD — 15° contact angle, high-capacity D design.

P4A — SKF tolerance class: ISO P4 dimensional accuracy with ISO P2 running accuracy.

DGA — set of two universally matchable bearings, extra light preload.

What these specs mean in practice

Bore Diameter: 90 mm. Outside Diameter: 125 mm. Width: 18 mm per bearing. Contact Angle: 15°. Dynamic Load Rating: 47,500 N per bearing. Static Load Rating: 51,000 N per bearing. Preload: Extra light (DGA). Precision Class: P4A (ABEC 7 / P4 dimensional, P2 running accuracy). Number Of Rows: 1 per bearing. Design: High-capacity D. Bearing Material: Bearing steel. Closure Type: Open. Item Weight: 0.549 kg (1.21 lb) per bearing; 1.10 kg (2.42 lb) pair total.

The 15° angle favours speed and radial stiffness. Extra light preload keeps heat generation low at high spindle speeds.

Quantity and configuration

Unit Quantity: 2 Pcs. One matched pair, total stack width 36 mm.

Interchange guidance

Same envelope, 15° angle, super-precision class: FAG B71918-C-T-P4S-DUL, NSK 7918CTYNDULP4, NTN 7918CDBL, Fafnir 2MM9318WI DUL. MPN variants: 71918 CD/P4ADGA, 71918-CDP4A/DGA, 71918-CD-P4A-DGA, 71918CDP4ADGA, 7918. Harmonization Code: 8482.10.50.

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