FAGB7026CTPAP4ULSuper Precision Angular Contact Spindle Bearing – 130 mm ID, 200 mm OD, 33 mm Width, Open, 15° Contact Angle, Light Preload, P4S

Product Description

What this part is

FAG B7026C.TPA.P4.UL super-precision angular contact spindle bearing. Series: B70. Bore: 130 mm. Outside Diameter: 200 mm. Width: 33 mm. Single row, open, straight bore, universally matchable for pair and set mounting. Country of origin: Germany.

Decoding the designation

B70 is the spindle bearing series. C sets the Contact Angle at 15°. TPA and T both denote a machined fabric-base laminate phenolic cage. P4S is the tolerance class, held tighter than P4 to ISO 492. U marks a universally ground single bearing and L sets light preload at 850 N. The FAG legacy form is 7026-TG-P4, carrying the same laminated fabric cage.

What these specs mean in practice

A 15° contact angle favours speed and radial stiffness over thrust capacity. Dynamic Load Rating: 149 kN (33,497 lbf). Static Load Rating: 107 kN (24,055 lbf). Fatigue Load Limit: 8.8 kN. Limiting speed: 6,700 rpm on grease, 10,000 rpm on oil. Axial rigidity at light preload: 137 N per micrometre. The phenolic cage is light and self-lubricating, holding ball guidance steady at spindle speeds where a brass cage would add mass.

Quantity and configuration

One bearing. The UL execution is universally ground, so it runs alone or pairs with another UL piece back-to-back, face-to-face or in tandem, with light preload set by the ground faces. Preload is ground into the rings, so this bearing carries a preload class in place of a running clearance.

Fitting notes

Shaft shoulder diameter: 142 mm to h12. Housing shoulder diameter: 189 mm to H12. Maximum recess radius: 2 mm. Minimum chamfer dimension: 2 mm. Distance between the pressure cone apexes: 38.6 mm. Grease injection pitch diameter: 151.6 mm to 159.3 mm. Operating temperature range: -30 °C to 100 °C.

Interchange guidance

Schaeffler’s current designation is B7026-C-T-P4S-UL, which replaces both B7026C.T.P4S.UL and B7026C.TPA.P4.UL. Searchable variants: B7026CTPAP4UL, B7026C TPA P4 UL, 7026-TG-P4. Fafnir equivalent: 2MM9126WI. The 25° execution on the same envelope is B7026-E-T-P4S-UL, a related size rather than a substitution.