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FAGSuper Precision Angular Contact Ball Bearing – Straight Bore, 100 mm ID, 140 mm OD, 20 mm Width, Open, 15° Contact Angle, Universal Light Preload.

Condition: New

Availability:

1 in stock

Super precision angular contact ball bearing, 100 x 140 x 20 mm, 15° contact angle, phenolic cage, universal light preload, 9,500 rpm on grease.

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$335.26

1 in stock

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Specifications

Key Specifications

MFR / BrandFAG
ModelB 71920 C TPA P4 UL / 7920-C / 71920CDP4A / 2MM9320WI
Bearing TypeAngular Contact Ball Bearing, Open
ID100 mm
OD140 mm
Width20 mm

Technical Specifications

MaterialBearing Steel
SeriesB719
LubricantOil/Grease
Base Number71920
Industry TermsSpindle bearing, super precision bearing, machine tool bearing, high speed angular contact bearing
Bore Shaft Size100 mm
Mpn VariantsB71920CTPAP4UL, B-71920-C-TPA-P4-UL, B71920 C TPA P4 UL, B71920C.T.P4S.UL
Rolling ElementsBall
Number Of Rows1
Bore TypeStraight
Snap Ring IncludedWithout Snap Ring
Harmonization Code8482.10.50
Part NumberB71920C.TPA.P4.UL

Cross-References

Cross Reference 1FAG B71920C.T.P4S.UL – current Schaeffler number
Cross Reference 2NSK 7920CTYNSULP4 – 15°, light preload
Cross Reference 3SKF 71920 CD/P4ADGB – 15°, light preload, matched pair
Cross Reference 4Fafnir 2MM9320WI – 15°; check cage and preload
Cross Reference 5FAG B71920E.T.P4S.UL – 25° vs 15°
Seller Part Number: B-AA4B5#WULFBL

Product Description

What this part is

FAG B71920C.TPA.P4.UL super precision angular contact ball bearing, also called a spindle bearing. Series B719, ISO 719 dimension series. Bore: 100 mm. Outside diameter: 140 mm. Width: 20 mm. Single row, open, straight bore. Searchable forms: B71920C.TPA.P4.UL, B71920CTPAP4UL, B-71920-C-TPA-P4-UL, B71920 C TPA P4 UL.

Decoding the designation

Contact Angle: 15°. Cage Material: laminated fabric phenolic. Precision Class: P4, ABEC 7. Preload: light. Arrangement: universal single bearing, adjusted for mounting in pairs or sets. Preload force in a light-preload pair: 316 N.

What these specs mean in practice

A 15° contact angle favours speed and radial stiffness and carries less thrust than a 25° bearing on the same envelope. Basic dynamic load rating, radial: 60 kN. Basic static load rating, radial: 45 kN. Fatigue load limit, radial: 4.3 kN. Limiting speed: 9,500 rpm on grease, 14,000 rpm on oil. Axial rigidity in light preload: 94 N/µm. A phenolic cage runs quietly at high speed and holds oil in its fabric structure.

Quantity and configuration

One bearing. Universal design: two or more mount together back-to-back, face-to-face or in tandem, and a pair sets light preload without shims or measurement.

Fitting notes

Diameter shaft shoulder: 107 mm. Shoulder diameter outer ring: 133 mm. Maximum recess radius: 0.6 mm. Minimum chamfer dimension: 1.1 mm. Distance between the apexes of the pressure cones: 26.2 mm. Operating temperature range: -30 °C to 100 °C. Weight: 0.78 kg.

Interchange guidance

Current Schaeffler designation for this bearing: B71920C.T.P4S.UL. Other makers’ 15°, P4 numbers in 100 x 140 x 20 mm: NSK 7920CTYNSULP4 (light preload), SKF 71920 CD/P4ADGB (light preload, matched pair) and Fafnir 2MM9320WI (check cage and preload). A B71920E on the same size carries a 25° contact angle and is a related part.

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