MPNbase

80×170×39 mm bearings

47 models from 3 brands across 5 types share this ISO 15 envelope: 80 mm bore, 170 mm outside diameter, 39 mm width (3.150×6.693×1.535 in), 45 mm radial section.

47 models fit this space 3 brands 47 with catalogue C rating

Dimensional interchange — verify before substituting

These bearings are interchangeable on boundary dimensions per ISO 15 — same bore, OD and width. They are not guaranteed drop-in equivalents: compare load ratings, seals, clearance, cage, precision and axial-locating design for the specific duty. Models without a catalogue C rating on this site carry ISO 15 geometry only; request the manufacturer table before a load-critical replacement.

Model Type Brand Seal Clearance C (kN) C0 (kN) Mass (g)
1316 Self-Aligning Ball NTN open — 89 33 4240
1316-K Self-Aligning Ball SKF open CN 88.4 33.5 4200
1316K Self-Aligning Ball NTN open — 89 33 4240
21316 Spherical Roller SKF open CN 331 375 4450
21316-EK Spherical Roller SKF open CN 331 375 5300
21316-NTN Spherical Roller NTN open CN 289 315 4530
21316K Spherical Roller NTN open CN 289 315 4470
316 Deep Groove Ball SKF open CN 138 129 3950
316-ZZ Deep Groove Ball SKF ZZ CN 138 129 3950
6316 Deep Groove Ball SKF open CN 130 86.5 3650
6316-2RS Deep Groove Ball SKF 2RS CN 130 86.5 3700
6316-2RS-NSK Deep Groove Ball NSK 2RS CN 135 86.5 3670
6316-2RS-NTN Deep Groove Ball NTN 2RS CN 136 86.5 3590
6316-M Deep Groove Ball SKF open CN 130 86.5 4400
6316-NSK Deep Groove Ball NSK open CN 135 86.5 3670
6316-NTN Deep Groove Ball NTN open CN 136 86.5 3590
6316-RSR Deep Groove Ball NSK RSR CN 135 86.5 3670
6316-RSR-NTN Deep Groove Ball NTN RSR CN 136 86.5 3590
6316-ZZ Deep Groove Ball SKF ZZ CN 130 86.5 3750
6316-ZZ-NSK Deep Groove Ball NSK ZZ CN 135 86.5 3670
6316-ZZ-NTN Deep Groove Ball NTN ZZ CN 136 86.5 3590
7316 Angular Contact Ball SKF open CN 135 110 3800
7316-BECBM Angular Contact Ball SKF open CN 143 118 3800
7316-BECBP Angular Contact Ball SKF open CN 143 118 3800
7316-BECBPH Angular Contact Ball SKF open CN 143 118 3800
7316-BECBY Angular Contact Ball SKF open CN 143 118 3800
7316-BEM Angular Contact Ball SKF open CN 135 110 3800
7316-BEP Angular Contact Ball SKF open CN 135 110 3800
7316-NTN Angular Contact Ball NTN open CN 163 119 3650
7316B Angular Contact Ball NTN open CN 149 109 3720
N316 Cylindrical Roller NTN open CN 211 207 3770
N316-ECP Cylindrical Roller SKF open CN 300 290 3900
N316E Cylindrical Roller NTN open CN 284 282 4120
NF316 Cylindrical Roller NTN open CN 211 207 3770
NF316E Cylindrical Roller NTN open CN 284 282 4120
NJ316 Cylindrical Roller NTN open CN 211 207 3770
NJ316-ECP Cylindrical Roller SKF open CN 300 290 4000
NJ316E Cylindrical Roller NTN open CN 284 282 4120
NU316 Cylindrical Roller SKF open CN 300 290 3850
NU316-NTN Cylindrical Roller NTN open CN 211 207 3770
NU316E Cylindrical Roller NTN open CN 284 282 4120
NUP316 Cylindrical Roller NTN open CN 211 207 3770
NUP316-ECP Cylindrical Roller SKF open CN 300 290 4100
NUP316E Cylindrical Roller NTN open CN 284 282 4120
QJ-316-N2MA Angular Contact Ball SKF open CN 232 228 4600
QJ-316-N2PHAS Angular Contact Ball SKF open CN 232 228 4600
QJ316 Angular Contact Ball NTN open CN 202 330 4640

Note: catalogue dynamic load ratings for this envelope span 88.4– 331.0 kN — a 274% spread between designs in the very same 80×170×39 mm space. The higher-rated unit is not an upgrade for every duty (it may run at lower limiting speed), but ignoring the gap will over- or under-life the replacement.

Substitution verification checklist

  1. Load rating. Check C (dynamic) and C0 (static) against the original life calculation — the table above shows which models carry verified catalogue values.
  2. Sealing. Open, -ZZ shields and -2RS contact seals are not equivalent in friction, speed or contamination protection; match the housing environment, not just the suffix on the old box.
  3. Internal clearance. CN/C3/C4 changes with fit and operating temperature; an interference inner-ring mount commonly needs C3 where the bench bearing ran CN.
  4. Cage and precision. Stamped steel, machined brass and polymer cages, and P0/P6/P5 tolerance classes, carry different speed and shock limits.
  5. Locating behaviour. Within one envelope an NU cylindrical roller floats axially while an NJ/NUP locates; ball designs take thrust that roller locating schemes do not. Preserve the shaft's locating arrangement.

Browse all 80 mm bore bearings for wider or narrower sections, or open a model page for naming-rule decode, applications and graded cross references: 1316, 1316-K, 1316K, 21316, 21316-EK, 21316-NTN, 21316K, 316, 316-ZZ, 6316, 6316-2RS, 6316-2RS-NSK, 6316-2RS-NTN, 6316-M, 6316-NSK, 6316-NTN, 6316-RSR, 6316-RSR-NTN, 6316-ZZ, 6316-ZZ-NSK, 6316-ZZ-NTN, 7316, 7316-BECBM, 7316-BECBP, 7316-BECBPH, 7316-BECBY, 7316-BEM, 7316-BEP, 7316-NTN, 7316B, N316, N316-ECP, N316E, NF316, NF316E, NJ316, NJ316-ECP, NJ316E, NU316, NU316-NTN, NU316E, NUP316, NUP316-ECP, NUP316E, QJ-316-N2MA, QJ-316-N2PHAS, QJ316.

Frequently asked questions

Are all 80×170×39 mm bearings interchangeable?

They share the same ISO 15 boundary dimensions — 80 mm bore, 170 mm OD, 39 mm width (3.150×6.693×1.535 in) — so they fit the same shaft, housing bore and axial space. Interchangeability ends at the envelope: dynamic load rating, seal arrangement, internal clearance, cage and precision class differ between the 47 models listed here and must be checked against the duty before substitution.

Is it a drop-in replacement if two bearings both measure 80×170×39?

Only after verification. Confirm five things in order: (1) the C/C0 load ratings meet the original life calculation, (2) the seal type is equivalent or acceptable for the contamination level (open vs -ZZ vs -2RS), (3) internal clearance matches (CN/C3/C4 — an interference fit changes residual play), (4) cage material and precision class suit the speed, and (5) the axial-locating behaviour is the same (for example an NU cylindrical roller floats while an NJ locates one way). Same dimensions alone never guarantee equal performance.

What is 80×170×39 mm in inches?

80×170×39 mm converts to 3.150×6.693×1.535 in, with a 45 mm (1.772 in) radial section height. These are the ISO 15 general-plan envelope dimensions shared across manufacturers, which is why models such as 1316, 1316-K, 1316K mount in the same space despite different internal designs.