7322-BEM bearing: complete specifications & equivalents
The 7322-BEM is a ISO 15 radial bearing sized 110 x 240 x 50 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 110 mm |
| Outer diameter D | 240 mm |
| Width B | 50 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 225 kN |
| Basic static load rating C0 | 224 kN |
| Fatigue load limit Pu | 7.2 kN |
| Reference speed (thermal) | 3400 rpm |
| Limiting speed (mechanical) | 3400 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 10000 g |
| Manufacturer designation | 7322 BEM |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-27 |
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.
Dimensions in inches & 7300-series range
| Bore d | 4.331 in |
|---|---|
| Outer diameter D | 9.449 in |
| Width B | 1.969 in |
| ISO bore code | 22 |
| Radial section height (D−d)/2 | 65 mm |
| Smallest bore in 7300-series | 10 mm |
| Largest outer diameter in 7300-series | 420 mm |
| Width range across 7300-series | 11–80 mm |
| Bore position in 7300-series (smallest first) | 23 of 31 |
| Bore above smallest 7300-series size | 100 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 7322-BEY | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 110×240×50 mm envelope with catalogue ratings within 10 %; 7322 BEY is the brass cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs. |
| 7322-BECBP | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 110×240×50 mm envelope with catalogue ratings within 10 %; 7322 BECBP is the glass-fibre PA66 cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs. |
| 7322-BECBY | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 110×240×50 mm envelope with catalogue ratings within 10 %; 7322 BECBY is the brass cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs. |
| 7322-BECBM | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 110×240×50 mm envelope with catalogue ratings within 10 %; 7322 BECBM is the brass cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs. |
| QJ-322-N2MA | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 110×240×50 mm envelope, but catalogue C/C0 differ between executions (225/224 kN vs 390/480 kN) — boundary dimensions match, not a load-rating equivalent. |
| 7322 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 7322 BECBP is the basic 110×240×50 mm angular-contact page with ratings within 10 % of this execution — same boundary dimensions, verify execution details. |
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 7322-BEM model number is decoded
7322 BEM is SKF's 110 mm-bore single-row angular-contact ball bearing in the 7300 series, nominal 40° (B) contact angle, 110×240×50 mm to the ISO dimension plan. 40° contact angle (suffix B): the steep standard single-row angle, giving the highest axial capacity at the cost of speed, with a recommended load ratio Fa/Fr ≥ 1. E marks the optimized internal design with an enhanced ball complement and race geometry. machined brass cage, ball-centred (suffix M), the choice for high speed, marginal lubrication and shock duty. The BEM is a basic single bearing with a machined brass cage — not ground for universal matching; use the BCBM or BECBM execution when defined DB/DF sets are required.. Envelope 110×240×50 mm (4.331×9.449×1.969 in), 65.0 mm radial section height, C 225 kN, C0 224 kN, Pu 7.2 kN.reference speed 3,400 r/min (thermal) and limiting speed 3,400 r/min (mechanical), which coincide for this size, catalogue mass 10000 g. The 7.2 kN fatigue load limit is the equivalent-load floor for long-life adjustment; with 225/224 kN ratings and 10000 g mass this execution carries about 2.05 kN of C per millimetre of bore. Selection figures for 7322 BEM: the static-to-dynamic ratio C0/C is 1.00, Pu 7.2 kN is about 3 % of C, and catalogue mass works out to roughly 91 g per millimetre of bore. Bore-to-OD planning: OD 240 over bore 110 is a 2.18× step for this size, and the 50 mm width gives a bore/width ratio of 2.20; use these ratios when housing space around the 110 mm shaft is the first constraint. Ordering note: BEM pairs the optimized 40-degree geometry with a machined one-piece brass window cage as a basic (non-universal) single bearing; it is the brass-cage counterpart of the polymer BEP, and universally matchable positions must use the BECBM or BCBM execution instead.
Typical equipment & failure modes
Common applications
- dryer-cylinder pinion shafts
- medium and large machine-tool spindles
- industrial gearboxes and speed reducers
Known failure patterns
- preload loss as a loosely clamped set runs slack and the balls smear the raceways
- thermal preload runaway in a back-to-back pair when inner-ring heat cannot expand away
- raceway smearing under minimum-axial-load starvation at light load and high speed
- raceway staining from water in the lubricant during idle periods
- electrical pitting on VFD-driven shafts without grounding protection
Selection pitfalls — read before you substitute
- Assign interference to the rotating ring — roughly m6 on a 110 mm rotating shaft with an H7 housing — and let the stationary ring slide for axial setting; reverse the logic if the outer ring rotates.
- Fillet radii must clear the chamfer so the 50 mm-wide ring seats square; an oversized shaft radius creates point contact on the ring face.
- Preload the set against a calculated stand-off dimension — the ground faces of BEM establish it, but locknut torque, sleeve crush and housing-face squareness each consume part of the allowance.
- Preload the set against a calculated stand-off dimension — the ground faces of BEM establish it, but locknut torque, sleeve crush and housing-face squareness each consume part of the allowance.
- The steep 40° angle of 7322-BEM favours thrust-heavy combined loads; for a predominantly radial high-speed position the 25° ACCBM execution of the same size is the alternative order number.
- Catalogue ratings are SKF PUB BU/P1 17000 figures for 7322 BEM as the single basic machined brass execution; the other order numbers of the 7322 size are different products and may carry different ratings — always quote the full designation when purchasing.
Frequently asked questions
What are the dimensions and catalogue data of 7322-BEM?
7322 BEM measures 110 mm bore × 240 mm OD × 50 mm width (4.331 × 9.449 × 1.969 in), mass about 10000 g. SKF 17000 ratings: C 225 kN, C0 224 kN, Pu 7.2 kN, reference speed 3,400 r/min (thermal) and limiting speed 3,400 r/min (mechanical), which coincide for this size.
What does the BEM suffix mean?
40° contact angle (suffix B): the steep standard single-row angle, giving the highest axial capacity at the cost of speed, with a recommended load ratio Fa/Fr ≥ 1. E marks the optimized internal design with an enhanced ball complement and race geometry. machined brass cage, ball-centred (suffix M), the choice for high speed, marginal lubrication and shock duty. The BEM is a basic single bearing with a machined brass cage — not ground for universal matching; use the BCBM or BECBM execution when defined DB/DF sets are required..
Which grease and fill for 7322-BEM?
A premium mineral-oil grease with polyurea or lithium complex thickener and NLGI 2 consistency suits normal operating temperature; fill roughly 25–35 % of the free volume. Oil-air or oil-jet lubrication is the choice near the 3,400 r/min ceiling.
What do the reference and limiting speeds mean for 7322-BEM?
The 3,400 r/min reference (thermal) and 3,400 r/min limiting (mechanical) speeds are catalogue conditions; preload, lubrication and heat removal move the permissible value, so re-calculate for the actual arrangement.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-27. Read our editorial & correction policy.