FAGB7026CTPAP4K5USSpindle Bearing — Super-Precision P4S, 130 mm ID, 200 mm OD, 33 mm Width, 15° Contact Angle, Phenolic Cage, Universal Arrangement

Product Description

What this part is

FAG B7026-C-T-P4S super-precision single-row angular contact spindle bearing. Bore Diameter: 130 mm. Outside Diameter: 200 mm. Overall Width: 33 mm. Contact Angle: 15°. Precision Class: P4S. Number Of Rows: 1. Rolling Elements: Ball. Bore Type: Straight. Closure Type: Open. Cage Material: Phenolic (laminated fabric). Bearing Material: Bearing steel. Item Weight: 3.11 kg (6.86 lb).

Decoding the designation

B70 — FAG spindle bearing series on the ISO 10 light section. A 130 mm bore carries a 200 mm outside diameter in a 33 mm section.

26 — bore code. 26 × 5 = 130 mm.

C — 15° contact angle. The shallow angle favours running speed and radial stiffness.

T — laminated fabric cage, the phenolic execution FAG also writes as TPA.

P4S — FAG’s own super-precision tolerance class, which FAG states runs better than P4 to ISO 492:2023.

U — single bearing, ground for universal arrangement in pairs or sets.

What these specs mean in practice

Dynamic Load Rating: 149,000 N. Static Load Rating: 107,000 N. Fatigue Load Limit: 8,800 N. The fatigue limit is the load below which rolling-contact fatigue does not initiate, so it sets the threshold for effectively unlimited life.

Limiting Speed: 6,700 rpm grease; 10,000 rpm oil. Operating Temperature: −30 °C to 100 °C.

Contact Angle: 15°. Radial load is carried together with axial load acting in one direction.

Preload force depends on how the set is arranged: 850 N light, 2,669 N medium, 5,314 N heavy, with axial rigidity of 137, 229 and 324 N/µm across those three steps.

Mounting data

Shaft shoulder diameter: 142 mm to h12. Outer ring shoulder diameter: 189 mm to H12. Maximum recess radius: 2 mm, and 1 mm on the opposite face. Minimum chamfer: 2 mm both sides. Distance between the apexes of the pressure cones: 38.6 mm. Lubricant injection pitch diameter: 151.6 mm to 159.3 mm. Bore Type: Straight. Harmonization Code: 8482.10.50.

Quantity and configuration

Unit Quantity: 1 Pc. A single bearing ground for universal arrangement, usable alone or set against others of the same designation.

Interchange guidance

Same envelope, same 15° angle, same super-precision tier: SKF 7026 CDGA/P4A, Timken/Fafnir 2MM9126WICRSUL, NSK 7026CTRSULP4, RHP 7026X2TRSULP4.

Load ratings differ between makers on this envelope and are not transferable. FAG rates this bearing 149,000 N dynamic against 107,000 N static; SKF’s 7026 CDGA/P4A rates 148,000 N against 156,000 N.