FAGB7211CTPAP4K5ULAngular Contact Ball Bearing – 55 mm ID, 100 mm OD, 21 mm Width, Open, 15°, ABEC 7 / P4, Phenolic Cage

Product Description

What this part is

FAG B7211CTPAP4K5UL is a super-precision spindle angular contact ball bearing. Bore Diameter: 55 mm. Outside Diameter: 100 mm. Overall Width: 21 mm. Contact Angle: 15°. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Bearing Material: Chrome steel. Item Weight: 0.61 kg (1.35 lb).

Decoding the designation

B72 — Schaeffler’s spindle bearing series in the heavier 72 section, which carries more load than the 70 section on the same bore.

7211 — ISO size code. Bore 55 mm, outside diameter 100 mm, width 21 mm.

C — Contact angle 15°.

TPA — Fabric-base laminate phenolic cage, machined.

P4 — Precision Class: ABEC 7 / P4.

UL — Universally matchable. Faces are ground so any two or more bearings pair in back-to-back, face-to-face or tandem arrangement and reach the published preload without shims.

What these specs mean in practice

Dynamic Load Rating: 47,000 N. Static Load Rating: 26,500 N. Limiting Speed: 14,000 rpm grease; 22,000 rpm oil. Fatigue load limit, radial: 2,800 N.

Precision Class: ABEC 7 / P4. Cage Material: Phenolic. Cage Type: Machined. Lubricant: grease or oil. Operating temperature range: -30 °C to +100 °C.

The 72 section puts a larger ball complement on the same 55 mm bore than the 70 section, so the B7211 carries 47,000 N dynamic against the B7011’s 38,500 N, and gives up speed for it. Series: B72. Base Number: B7211.

Mounting data

Preload per matched pair: light 258 N, medium 832 N, heavy 1,662 N.

Mounting Arrangement: Universal — back-to-back (O), face-to-face (X) or tandem. Internal Clearance: N/A; the bearing is preload-adjusted rather than clearance-set.

Quantity and configuration

Unit Quantity: 1 Pc. Single bearing, universally ground, ready to be matched with further pieces of the same designation. Condition: new, open box.

Interchange guidance

Same-envelope, same-angle, same-class equivalents: SKF 7211 CD/P4A, NSK 7211C, NTN 7211C, Timken Fafnir 2MM211WI, RHP 7211CT and Koyo 7211C.

Searchable forms of the number: B7211CTPAP4K5UL, B7211C.TPA.P4.K5.UL, B 7211 C TPA P4 K5 UL, B7211-C-T-P4S-UL, B7211C.TPA.P4.UL.