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SKF71930 CDGA/P4AAngular Contact Ball Bearing — Super-Precision, 150 mm ID, 210 mm OD, 28 mm Width, 15° Contact Angle, Extra Light Preload, P4A

Condition: New – Open box
Condition Note: Made In Italy, New Old Stock

Availability:

1 in stock

SKF 71930 CDGA/P4A super-precision angular contact bearing, 150 x 210 x 28 mm, 15° angle, extra light preload, P4A. Dynamic rating 114,000 N, static 132,000 N.

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$1,422.08

1 in stock

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Specifications

Key Specifications

MFR / BrandSKF
MPN71930 CDGA/P4A
Model71930CDP4ADGA
Bearing TypeAngular Contact Ball Bearing, Open
ID150 mm
OD210 mm
Width28 mm

Technical Specifications

MaterialSteel
Series71900
PreloadExtra light (GA)
Mpn Variants71930 CDGA/P4A, 71930CDGAP4A, 71930-CD-P4A-DGA, 71930CDP4ADGA, 7930
Precision ClassP4A (ABEC 7 / P4 dimensional, P2 running accuracy)
Dynamic Load Rating114,000 N
Static Load Rating132,000 N
Precision RatingP4A (ABEC 7 / P4 dimensional, P2 running accuracy)
Rolling ElementsBall
Item Weight2.5 kg (5.51 lb)
Number Of Rows1
Bore TypeStraight
Snap Ring IncludedNo
Harmonization Code8482.10.50
Contact Angle15°
Mounting ArrangementUniversal: back-to-back, face-to-face or tandem
Bearing MaterialBearing steel

Cross-References

Cross Reference 1FAG B71930-C-T-P4S
Cross Reference 2NSK 7930C
Cross Reference 3GMN S61930 C
Cross Reference 4NTN 7930C
Seller Part Number: B-BE5#PU50BO

Product Description

What this part is:

SKF 71930 CDGA/P4A is a super-precision, high-capacity single row angular contact ball bearing in the 719 ultra-light series, with a 15° contact angle and extra light preload for universal matching. It carries combined radial and one-direction axial load at high speed and is used in machine tool spindles.

Decoding the designation:

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

30 — bore code, 30 x 5 = 150 mm bore.

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

GA — single bearing for universal matching, extra light preload. Any two GA bearings mount back-to-back, face-to-face or in tandem.

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

What these specs mean in practice:

Bore Diameter: 150 mm. Outside Diameter: 210 mm. Width: 28 mm. Contact Angle: 15°. Dynamic Load Rating: 114,000 N. Static Load Rating: 132,000 N. Preload: Extra light (GA). Precision Class: P4A (ABEC 7 / P4 dimensional, P2 running accuracy). Number Of Rows: 1. Contact Type: Normal two-point contact. Design: High-capacity D. Bearing Material: Bearing steel. Closure Type: Open. Item Weight: 2.5 kg (5.51 lb).

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

Quantity and configuration:

Unit Quantity: 1 Pc. Single universally matchable bearing: back-to-back, face-to-face or tandem with any other 71930 CDGA bearing.

Interchange guidance:

Same envelope, 15° angle, super-precision class: FAG B71930-C-T-P4S, NSK 7930C, NTN 7930C, Fafnir 2MM9330WI, GMN S61930 C. MPN variants: 71930 CDGA/P4A, 71930CDGAP4A, 71930-CD-P4A-DGA, 71930CDP4ADGA, 7930. Harmonization Code: 8482.10.50.

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