7316 bearing: complete specifications & equivalents

The 7316 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.

Bearing dimension schematic Front view shows outer diameter D and bore d; side section shows width B. D = 170 mm d = 80 B = 39 mm side section front view
Principal dimensions: bore d 80 mm, outer diameter D 170 mm, width B 39 mm. Schematic, not to scale.

Specification table

ParameterValue
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 polymer (PA66 glass-fibre reinforced)
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) 4500 rpm
Operating temperature -40 to +120 °C
Mass 3800 g
Manufacturer designation SKF 7316 BEP
Standard ISO 15
Catalog version SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB
Last verified 2026-09-26

Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB) · extracted 2026-09-26

Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB); 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 d3.15 in
Outer diameter D6.693 in
Width B1.535 in
ISO bore code16
Radial section height (D−d)/245 mm
Smallest bore in 7300-series10 mm
Largest outer diameter in 7300-series420 mm
Width range across 7300-series11–80 mm
Bore position in 7300-series (smallest first)17 of 32
Bore above smallest 7300-series size70 mm

Cross references & equivalents

Equivalent modelBrandMatch levelNote
7316-NTN NTN partial
Main dimensions match; tolerances, seals or internal clearance differ.
Same 80×170×39 mm envelope per ISO 15; catalogue load ratings differ by >10% — re-rate the application before substituting.
6316 SKF verify
Commonly quoted cross reference; confirm against the target catalog before ordering.
Identical envelope but a different bearing type — confirm load and speed suitability before substitution.
6316-2RS SKF verify
Commonly quoted cross reference; confirm against the target catalog before ordering.
Identical envelope but a different bearing type — confirm load and speed suitability before substitution.
6316-ZZ SKF verify
Commonly quoted cross reference; confirm against the target catalog before ordering.
Identical envelope but a different bearing type — confirm load and speed suitability before substitution.
7316-BEP SKF full
Dimensions and internal design equivalent — standard interchange.
SKF 7316 BEP (glass-fibre PA66 cage, open arrangement) is the same-envelope execution with ratings within 10 % — boundary dimensions interchangeable.
7316-BEM SKF full
Dimensions and internal design equivalent — standard interchange.
SKF 7316 BEM (brass cage, open arrangement) is the same-envelope execution with ratings within 10 % — boundary dimensions interchangeable.
7316-BECBP SKF full
Dimensions and internal design equivalent — standard interchange.
SKF 7316 BECBP (glass-fibre PA66 cage, open arrangement) is the same-envelope execution with ratings within 10 % — boundary dimensions interchangeable.
7316-BECBPH SKF full
Dimensions and internal design equivalent — standard interchange.
SKF 7316 BECBPH (PEEK cage, open arrangement) is the same-envelope execution with ratings within 10 % — boundary dimensions interchangeable.
7316-BECBY SKF full
Dimensions and internal design equivalent — standard interchange.
SKF 7316 BECBY (brass cage, open arrangement) is the same-envelope execution with ratings within 10 % — boundary dimensions interchangeable.
7316-BECBM SKF full
Dimensions and internal design equivalent — standard interchange.
SKF 7316 BECBM (brass cage, open arrangement) is the same-envelope execution with ratings within 10 % — boundary dimensions interchangeable.
QJ-316-N2MA SKF partial
Main dimensions match; tolerances, seals or internal clearance differ.
SKF QJ 316 N2MA shares the envelope but catalogue C/C0 differ — envelope match only after a load check.
QJ-316-N2PHAS SKF partial
Main dimensions match; tolerances, seals or internal clearance differ.
SKF QJ 316 N2PHAS shares the envelope but catalogue C/C0 differ — envelope match only after a load check.

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 model number is decoded

The SKF 7316 BEP is a 80×170×39 mm single-row angular-contact ball bearing — the medium (7300) series of the SKF 7xxx line, built on the ISO 15 envelope shared with the 6316 deep-groove size but cut for combined radial and one-direction axial load.On the SKF nameplate, 7316 follows the ISO numbering convention: 7 for the angular-contact type, 3 for the medium section section, final digits 16 for the 80 mm bore. The suffix decodes as B for the 40° contact-angle execution, E for SKF's enhanced internal design with larger/fewer balls, and P for the glass-fibre reinforced PA66 ball-centred cage (continuous temperature ceiling 120 °C). The 45.0 mm radial section height ((170−80)/2) and 3800 g catalogue mass frame a 80 mm bore bearing rated at 135 kN C — roughly 1.69 kN of dynamic capacity per millimetre of bore before application factors. Mounting practice for 7316: the rotating ring takes the interference fit (k5 on a 80 mm rotating shaft), the stationary ring slides for axial location, and reversing-thrust duty demands a paired DB/DF set rather than one bearing.

Typical equipment & failure modes

Common applications

  • process pump and compressor drives
  • printing and paper-machine rolls
  • crane sheave and hoist gearboxes
  • agricultural and construction machinery drives

Known failure patterns

  • contamination wear through the open arrangement when no external seal is provided
  • raceway smearing under marginal lubrication at start-up before oil reaches the contact ellipse
  • preload loss as a matched pair runs loose, letting the balls skid and smear the raceways
  • ball skidding when the induced axial load unloads the inactive bearing of a pair
  • cage wear from speed beyond the catalogue limiting value with thin or aged lubricant
  • hard-particle indentation of the asymmetric raceway in unfiltered oil

Selection pitfalls — read before you substitute

  • Mount the 80 mm bore 7316 by induction heating of the inner ring (max 120 °C — the PA66 cage sets the ceiling, not the steel); driving it home through the outer ring or balls brinells the asymmetric raceway.
  • The 73xx medium section at 80 mm bore (170×39 mm) is heavier-rated than the 7216 but runs hotter at the same speed; do not substitute a 7316 into a 72-series spindle position without re-checking dn, lubricant film and preload.
  • A single 7316 cannot locate the shaft axially in both directions; mounting it singly on a reversing-thrust shaft leaves one direction uncontrolled — always use a DB or DF matched pair for bidirectional location.
  • When the outer ring rotates, reverse the fit logic and provide outer-ring location; the steep 40° contact of 7316 pushes the rings apart under load, so a non-located outer ring walks its seat even when the shaft is fixed.
  • Open 7316 units need application-supplied sealing and a defined lubricant supply; in oil lubrication keep the oil level below the lowest rolling element or churning raises temperature well beyond the catalogue speed figures.
  • The 135/110 kN ratings are SKF catalogue 17000 values for the 7316 BEP execution; SKF can revise internal geometry without changing the order number, so keep the catalogue version (PUB BU/P1 17000/1 EN, 2018) with the specification and re-verify for critical drives.
  • SKF lists several executions of 7316 (BEP basic, BECBP universally matchable, BE-2RZP sealed, BECBM brass-cage, ACC-series at 25°); they are not interchangeable order numbers — quote the full 7316 BEP designation when purchasing and match the execution to the mounting arrangement.
  • A plain 7316 BEP is a single open bearing, not a universally matchable one; to mount a defined DB/DF pair order the BECBP (CB) execution — pairing two unmatched basic units gives uncontrolled preload because the side faces are not ground for set mounting.

Frequently asked questions

What are the dimensions and catalogue data of SKF 7316?

The SKF 7316 BEP is a single-row angular-contact ball bearing with 80 mm bore, 170 mm outer diameter and 39 mm width (3.15 × 6.693 × 1.535 in) per ISO 15. From SKF catalogue 17000: basic dynamic load rating C 135 kN, C0 110 kN, fatigue load limit Pu 4.15 kN, reference speed 5,000 r/min, limiting speed 4,500 r/min, mass about 3800 g. It is an open 40° contact-angle bearing with a PA66 cage. Here the 4,500 r/min value is the one to design against.

How does the 7316 bore code work?

The last two digits of 7316 are bore code 16, so 16 × 5 = 80 mm bore. The 170 mm OD and 39 mm width come from the ISO 15 diameter-series plan, shared with the 6316 deep-groove envelope.

What do the 73xx and BEP designations mean?

The leading 7 marks a single-row angular-contact bearing; the second digit 3 is the ISO diameter series (medium section). In the SKF suffix, B denotes the 40° contact angle, E the enhanced internal design, P the glass-fibre PA66 cage. The plain BEP is the basic open single bearing; BECBP is the universally matchable version. A 25° variant (suffix A, e.g. ACC) runs faster but carries less thrust.

Can a single 7316 take axial load in both directions?

No — one single-row angular-contact bearing reacts thrust in one direction only, and under radial load its 40° contact angle induces an axial force. Use two bearings as a matched pair: DB (back-to-back) for a rigid, moment-resisting arrangement, DF (face-to-face) where thermal expansion must be tolerated, or DT (tandem) where one-direction thrust is shared. A CB (universal) execution arrives with ground side faces for set mounting; basic BEP bearings are single units and are not ground for arbitrary pairing.

How does 7316 compare with a deep-groove 6316?

Both use the 80×170×39 mm ISO 15 envelope, but the angular-contact 7316 has an asymmetric raceway at a nominal 40° angle: higher combined axial-plus-radial capacity and controlled preload, at the cost of speed, one-direction thrust, mandatory pairing for reversing loads and a minimum axial load requirement. The shared outline is why the two types cross-reference each other in catalogues, but ratings at 135 kN C apply only to the angular-contact design shown here.

Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018), ch. 3.1 single-row ACBB on 2026-09-26. Read our editorial & correction policy.