7210-ACCBM bearing: complete specifications & equivalents

Specification table

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-27

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018)); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.

Cross references & equivalents

Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.

How the 7210-ACCBM model number is decoded

7210 ACCBM is SKF's 50 mm-bore single-row angular-contact ball bearing in the 7200 series, nominal 25° (AC) contact angle, 50×90×20 mm to the ISO dimension plan. AC sets the 25° contact angle, CB marks universal matching with Normal axial clearance, and M the machined brass ball-centred cage. CB means universally matchable with Normal axial internal clearance: the two side faces are ground so any two units form DB (back-to-back), DF (face-to-face) or DT (tandem) sets without regrinding. CB means universally matchable with Normal axial internal clearance: the two side faces are ground so any two units form DB (back-to-back), DF (face-to-face) or DT (tandem) sets without regrinding. Envelope 50×90×20 mm (1.969×3.543×0.787 in), 20.0 mm radial section height, C 45.5 kN, C0 35.5 kN, Pu 1.5 kN.reference speed 9,500 r/min (thermal) and limiting speed 14,000 r/min (mechanical), catalogue mass 470 g. The 1.5 kN fatigue load limit is the equivalent-load floor for long-life adjustment; with 45.5/35.5 kN ratings and 470 g mass this execution carries about 0.91 kN of C per millimetre of bore. Load balance: C0 35.5 kN against C 45.5 kN gives a 0.78 ratio, typical of a steep-angle axial-oriented design; Pu 1.5 kN enters the SKF adjusted-life equation rather than the basic rating life. Speed-ratio note for this exact unit: the reference speed is 9,500 r/min against a 14,000 r/min limiting speed, i.e. a reference-to-limit ratio of 0.68. High-angle alternative note: ACCBM carries the 25-degree AC contact angle (not the 40-degree B), CB Normal-clearance universal faces and a machined brass cage; it runs faster and cooler than a BECBM of the same envelope but accepts a smaller axial share, so substitute only after re-running the load-ratio check.

Typical equipment & failure modes

Selection pitfalls — read before you substitute

• Greased positions should fill roughly 25–35 % of the free volume on a 7210-ACCBM of this section and route the surplus past the outer ring; overpacking churns the grease and reproduces the thermal preload problem mechanically.
• Do not mix execution classes inside one set: a universally matchable ACCBM unit is ground for arbitrary pairing, a basic execution is not.
• Mount by induction-heating the inner ring to max 120 °C; driving the bearing home through the outer ring or balls brinells the asymmetric raceway.
• Assign interference to the rotating ring — roughly k5 on a 50 mm rotating shaft with an H7 housing — and let the stationary ring slide for axial setting; reverse the logic if the outer ring rotates.
• The 25° AC angle of 7210-ACCBM runs faster and cooler than a 40° B bearing of the same envelope, but its thrust capacity and induced-load behaviour differ — do not swap AC for B without re-running the axial-load calculation.
• Universally matchable ACCBM bearings arrive ready for set mounting, not preloaded sets: preload results from how the set is clamped, so follow the SKF stand-off-ring and nut-torque procedure.