FAGB71930-C-T-P4S-ULAngular Contact Spindle Bearing — 150 mm ID, 210 mm OD, 28 mm Width, 15°, Light Preload, P4S, Phenolic Cage

Product Description

What this part is:

FAG B71930-C-T-P4S-UL is a super-precision angular contact spindle bearing in the B719 series. Bore Diameter: 150 mm. Outside Diameter: 210 mm. Overall Width: 28 mm. Contact Angle: 15°. Preload: Light (706 N). Precision Class: P4S. Universally matchable single bearing for pairs or sets in back-to-back, face-to-face or tandem arrangement.

Decoding the designation:

B719 — FAG spindle bearing, ISO dimension series 19; bore code 30 = 150 mm.

C — contact angle 15°.

T — laminated fabric (phenolic) cage.

P4S — FAG tolerance class, better than ISO P4 / ABEC 7.

UL — universal single bearing, Light preload when paired.

What these specs mean in practice:

Dynamic Load Rating: 125,000 N. Static Load Rating: 101,000 N. Fatigue Load Limit: 7,900 N. Limiting Speed: 6,300 rpm grease; 9,500 rpm oil. Preload: Light, 706 N (lift-off force 2,161 N, axial rigidity 141 N/µm). Medium preload for this size is 2,249 N and Heavy 4,507 N. Operating Temperature: -30 to 100 °C. Cage Material: Phenolic. Item Weight: 2.463 kg (5.43 lb).

Mounting data:

Shaft Shoulder Diameter: 160 mm (h12). Housing Shoulder Diameter: 199 mm (H12). Pressure Cone Apex Distance: 38.1 mm. Minimum Chamfer: 2 mm (r), 1 mm (r1). Maximum Fillet Radius: 1 mm. Lubrication Jet Pitch Diameter: 168.6 to 174.9 mm.

Interchange guidance:

Current Schaeffler designation B71930-C-T-P4S-UL replaces B71930C.T.P4S.UL and B71930C.TPA.P4.UL. Same envelope, 15° angle and light universal preload as SKF 71930 CD/P4ADGA, NSK 7930CTRSULP4 and Fafnir 2MM9330WI CR SUL.