7316-BEM bearing: complete specifications & equivalents
The 7316-BEM is a ISO 15 radial bearing sized 80 x 170 x 39 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 80 mm |
| Outer diameter D | 170 mm |
| Width B | 39 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 135 kN |
| Basic static load rating C0 | 110 kN |
| Fatigue load limit Pu | 4.15 kN |
| Reference speed (thermal) | 5000 rpm |
| Limiting speed (mechanical) | 4800 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 3800 g |
| Manufacturer designation | 7316 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 | 3.15 in |
|---|---|
| Outer diameter D | 6.693 in |
| Width B | 1.535 in |
| ISO bore code | 16 |
| Radial section height (D−d)/2 | 45 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) | 17 of 31 |
| Bore above smallest 7300-series size | 70 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 7316-BEP | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 80×170×39 mm envelope with catalogue ratings within 10 %; 7316 BEP is the glass-fibre PA66 cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs. |
| 7316-BECBP | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 80×170×39 mm envelope with catalogue ratings within 10 %; 7316 BECBP is the glass-fibre PA66 cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs. |
| 7316-BECBPH | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 80×170×39 mm envelope with catalogue ratings within 10 %; 7316 BECBPH is the PEEK cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs. |
| 7316-BECBY | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 80×170×39 mm envelope with catalogue ratings within 10 %; 7316 BECBY is the brass cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs. |
| 7316-BECBM | SKF | full Dimensions and internal design equivalent — standard interchange. | Same 80×170×39 mm envelope with catalogue ratings within 10 %; 7316 BECBM is the brass cage, open arrangement execution of this size — boundary dimensions interchangeable, execution differs. |
| QJ-316-N2MA | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 80×170×39 mm envelope, but catalogue C/C0 differ between executions (135/110 kN vs 232/228 kN) — boundary dimensions match, not a load-rating equivalent. |
| QJ-316-N2PHAS | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 80×170×39 mm envelope, but catalogue C/C0 differ between executions (135/110 kN vs 232/228 kN) — boundary dimensions match, not a load-rating equivalent. |
| 7316 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 7316 BEP is the basic 80×170×39 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 7316-BEM model number is decoded
7316 BEM is SKF's 80 mm-bore single-row angular-contact ball bearing in the 7300 series, nominal 40° (B) contact angle, 80×170×39 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 80×170×39 mm (3.15×6.693×1.535 in), 45.0 mm radial section height, C 135 kN, C0 110 kN, Pu 4.15 kN.reference speed 5,000 r/min (thermal) and limiting speed 4,800 r/min (mechanical), catalogue mass 3800 g. Speed planning distinguishes the two published ceilings mechanically: the cage and balls tolerate 4,800 r/min while thermal balance under catalogue load sets the 5,000 r/min reference; at dm ≈ 125.0 mm the corresponding dn is approximately 600k mm·r/min. Sizing arithmetic on the 80 mm bore: 135 kN C divided by the 45.0 mm radial section height gives 3.0 kN per section millimetre; the 3800 g mass and 3 % Pu/C share frame the light-load floor for the adjusted-life check. Speed-ratio note for this exact unit: the reference speed is 5,000 r/min against a 4,800 r/min limiting speed, i.e. a reference-to-limit ratio of 1.04. 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
- contact-angle shift and edge loading after uneven locknut torque tilts the set
- fretting at the ground set faces of a universal pair whose clamp torque relaxes
- ball skidding when Fa/Fr stays below the 1,0 (40°) or 0,55 (25°) ratio and the contact ellipse is unloaded
- mounting score marks when the bearing is cocked over a burr or keyway
- edge loading from shaft deflection or housing misalignment
Selection pitfalls — read before you substitute
- 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.
- At 80 mm bore the k5 seat assumes a steel shaft and housing; aluminium housings grow faster with temperature, so re-check the outer-ring setting when the case is non-ferrous.
- Do not mix execution classes inside one set: a universally matchable BEM 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.
- The steep 40° angle of 7316-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 7316 BEM as the single basic machined brass execution; the other order numbers of the 7316 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 7316-BEM?
7316 BEM measures 80 mm bore × 170 mm OD × 39 mm width (3.15 × 6.693 × 1.535 in), mass about 3800 g. SKF 17000 ratings: C 135 kN, C0 110 kN, Pu 4.15 kN, reference speed 5,000 r/min (thermal) and limiting speed 4,800 r/min (mechanical).
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 fits should I use for 7316-BEM?
With a rotating inner ring use roughly k5 on the 80 mm shaft and H7 in the housing; give the stationary ring a slide fit for axial setting, and reverse the logic when the outer ring rotates.
Which grease and fill for 7316-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 4,800 r/min ceiling.
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.