7320-BEP bearing: complete specifications & equivalents

The 7320-BEP is a ISO 15 radial bearing sized 100 x 215 x 47 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.

Bearing dimension schematic Front view shows outer diameter D and bore d; side section shows width B. D = 215 mm d = 100 B = 47 mm side section front view
Principal dimensions: bore d 100 mm, outer diameter D 215 mm, width B 47 mm. Schematic, not to scale.

Specification table

ParameterValue
Brand SKF
Bore diameter d 100 mm
Outer diameter D 215 mm
Width B 47 mm
Material GCr15
Seal / shield open
Internal clearance CN
Tolerance class P0
Cage polymer (PA66 glass-fibre reinforced)
Basic dynamic load rating C 203 kN
Basic static load rating C0 190 kN
Fatigue load limit Pu 6.4 kN
Reference speed (thermal) 3800 rpm
Limiting speed (mechanical) 3600 rpm
Operating temperature -40 to +120 °C
Mass 7500 g
Manufacturer designation 7320 BEP
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 3.937 in
Outer diameter D 8.465 in
Width B 1.85 in
ISO bore code 20
Radial section height (D−d)/2 57.5 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) 21 of 31
Bore above smallest 7300-series size 90 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
7320-BEM SKF full
Dimensions and internal design equivalent — standard interchange.
Same 100×215×47 mm envelope with catalogue ratings within 10 %; 7320 BEM is the brass cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs.
7320-BECBP SKF full
Dimensions and internal design equivalent — standard interchange.
Same 100×215×47 mm envelope with catalogue ratings within 10 %; 7320 BECBP is the glass-fibre PA66 cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs.
7320-BECBY SKF full
Dimensions and internal design equivalent — standard interchange.
Same 100×215×47 mm envelope with catalogue ratings within 10 %; 7320 BECBY is the brass cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs.
7320-BECBM SKF full
Dimensions and internal design equivalent — standard interchange.
Same 100×215×47 mm envelope with catalogue ratings within 10 %; 7320 BECBM is the brass cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs.
QJ-320-N2MA SKF partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 100×215×47 mm envelope, but catalogue C/C0 differ between executions (203/190 kN vs 345/400 kN) — boundary dimensions match, not a load-rating equivalent.
7320 SKF full
Dimensions and internal design equivalent — standard interchange.
SKF SKF 7320 BEP is the basic 100×215×47 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 7320-BEP model number is decoded

7320 BEP is SKF's 100 mm-bore single-row angular-contact ball bearing in the 7300 series, nominal 40° (B) contact angle, 100×215×47 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. glass-fibre reinforced PA66 cage, ball-centred (suffix P), with a 120 °C continuous-temperature ceiling. The plain BEP is a basic single bearing: its faces are not ground for universal matching, so defined pairs require the BECBP execution rather than two arbitrary BEP units.. Envelope 100×215×47 mm (3.937×8.465×1.85 in), 57.5 mm radial section height, C 203 kN, C0 190 kN, Pu 6.4 kN.reference speed 3,800 r/min (thermal) and limiting speed 3,600 r/min (mechanical), catalogue mass 7500 g. Envelope economics: the 47 mm width over a 57.5 mm section yields 0.82 mm of ring width per section millimetre, and the bearing weighs 7500 g for 203 kN of dynamic capacity — about 37 g per rated kN. Selection figures for 7320 BEP: the static-to-dynamic ratio C0/C is 0.94, Pu 6.4 kN is about 3 % of C, and catalogue mass works out to roughly 75 g per millimetre of bore. Speed-ratio note for this exact unit: the reference speed is 3,800 r/min against a 3,600 r/min limiting speed, i.e. a reference-to-limit ratio of 1.06. Basic polymer-cage execution: BEP is delivered as an individual open bearing with the 40-degree optimized internals and a glass-fibre PA66 ball-centred cage; it is not ground on the side faces for arbitrary pairing, so a reversing-thrust position should order BECBP for a set rather than mounting two unmatched BEP units.

Typical equipment & failure modes

Common applications

  • industrial gearboxes and speed reducers
  • process pump and compressor drives
  • printing and paper-machine rolls

Known failure patterns

  • false brinelling on idle paired sets exposed to machine vibration
  • contact-angle shift and edge loading after uneven locknut torque tilts the set
  • ball skidding when Fa/Fr stays below the 1,0 (40°) or 0,55 (25°) ratio and the contact ellipse is unloaded
  • PA66 cage creep or embrittlement when the non-universal single bearing is run above 120 °C
  • hard-particle indentation of the asymmetric raceway in unfiltered oil
  • brinelling from pressing the ring home through the balls or from static overload

Selection pitfalls — read before you substitute

  • DB pairs give the highest moment stiffness, DF pairs tolerate misalignment and thermal expansion better, DT shares heavy one-direction thrust; choose from the shaft thermal calculation rather than by habit.
  • Greased positions should fill roughly 25–35 % of the free volume on a 7320-BEP of this section and route the surplus past the outer ring; overpacking churns the grease and reproduces the thermal preload problem mechanically.
  • Reference and limiting speeds are different ceilings: design to both, and remember preload and oil/air cooling move the real thermal limit far from the catalogue reference value.
  • Keep the load ratio in the SKF design range: Fa/Fr ≥ 1 for this angle; below it the balls unload the contact ellipse and skid, which is why the catalogue insists on a minimum axial load (Fam ≈ A·(n·dm/1000)²) at high speed.
  • The steep 40° angle of 7320-BEP 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 7320 BEP as the single basic pa66 execution; the other order numbers of the 7320 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 7320-BEP?

7320 BEP measures 100 mm bore × 215 mm OD × 47 mm width (3.937 × 8.465 × 1.85 in), mass about 7500 g. SKF 17000 ratings: C 203 kN, C0 190 kN, Pu 6.4 kN, reference speed 3,800 r/min (thermal) and limiting speed 3,600 r/min (mechanical).

What does the BEP 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. glass-fibre reinforced PA66 cage, ball-centred (suffix P), with a 120 °C continuous-temperature ceiling. The plain BEP is a basic single bearing: its faces are not ground for universal matching, so defined pairs require the BECBP execution rather than two arbitrary BEP units..

What minimum axial load does 7320-BEP need?

The balls must remain seated: SKF gives Fam ≈ A·(n·dm/1000)² and a load-ratio guideline of Fa/Fr ≥ 1 for the 40° B execution and ≥ 0,55 for the 25° AC execution. Preloaded pairs and spring loading are the usual ways of meeting it at light load and high speed.

What is the difference between BEP, BECBP and BECBM?

All share the 40° optimized geometry: BEP is the basic PA66-caged single bearing, BECBP adds CB universal matching (ground faces, Normal clearance) with the same PA66 cage, and BECBM is the universally matchable version with a machined brass cage for higher speed and temperature.

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.