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70 mm bore bearings

48 models with a 70 mm (2.756 in) bore across 7 bearing types, outside diameters from 90 to 180 mm. Tables are grouped by type; open a model for full specs and equivalents.

48 models 90–180 mm OD range 4 brands

Angular Contact Ball Bearings (6)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
71814 71800 70 90 10 GENERIC-ISO open CN —
71914 71900 70 100 16 GENERIC-ISO open CN —
7014 7000 70 110 20 GENERIC-ISO open CN —
7214 7200 70 125 24 GENERIC-ISO open CN —
7314 7300 70 150 35 GENERIC-ISO open CN —
7414 7400 70 180 42 GENERIC-ISO open CN —

Cylindrical Roller Bearings (2)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
NU214 NU200 70 125 24 GENERIC-ISO open CN —
NU314 NU300 70 150 35 GENERIC-ISO open CN —

Deep Groove Ball Bearings (24)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
61814 61800 70 90 10 SKF open CN 12.4
61814-2RS 61800 70 90 10 SKF 2RS CN 12.4
61814-RSR 61800 70 90 10 SKF RSR CN 12.4
61814-ZZ 61800 70 90 10 NSK ZZ CN 13.3
61914 61900 70 100 16 SKF open CN 23.8
61914-2RS 61900 70 100 16 SKF 2RS CN 23.8
61914-RSR 61900 70 100 16 SKF RSR CN 23.8
61914-ZZ 61900 70 100 16 NSK ZZ CN 26.1
16014 16000 70 110 13 NTN open CN 27
6014 6000 70 110 20 SKF open CN 39.7
6014-2RS 6000 70 110 20 SKF 2RS CN 39.7
6014-RSR 6000 70 110 20 NSK RSR CN 42
6014-ZZ 6000 70 110 20 SKF ZZ CN 39.7
6214 6200 70 125 24 SKF open CN 63.7
6214-2RS 6200 70 125 24 SKF 2RS CN 63.7
6214-RSR 6200 70 125 24 NSK RSR CN 68.5
6214-ZZ 6200 70 125 24 SKF ZZ CN 63.7
6314 6300 70 150 35 SKF open CN 111
6314-2RS 6300 70 150 35 SKF 2RS CN 111
6314-RSR 6300 70 150 35 NSK RSR CN 115
6314-ZZ 6300 70 150 35 SKF ZZ CN 111
6414 6400 70 180 42 SKF open CN 143
6414-2RS 6400 70 180 42 GENERIC-ISO 2RS CN 143
6414-ZZ 6400 70 180 42 GENERIC-ISO ZZ CN 143

Self-Aligning Ball Bearings (4)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
1214 1200 70 125 24 NTN open — 35
2214 2200 70 125 31 NTN open — 44
1314 1300 70 150 35 NTN open — 75
2314 2300 70 150 51 NTN open — 111

Spherical Roller Bearings (4)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
23014 23000 70 110 27 GENERIC-ISO open CN —
22214 22200 70 125 31 GENERIC-ISO open CN —
21314 21300 70 150 35 GENERIC-ISO open CN —
22314 22300 70 150 51 GENERIC-ISO open CN —

Tapered Roller Bearings (4)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
32014 32000 70 110 25 GENERIC-ISO open CN —
30214 30200 70 125 24.75 GENERIC-ISO open CN —
32214 32200 70 125 33.25 GENERIC-ISO open CN —
32314 32300 70 150 54 GENERIC-ISO open CN —

Thrust Ball Bearings (4)

Model Series d (mm) D (mm) B (mm) Brand Seal Clearance C (kN)
51114 51100 70 95 18 NTN open — 45
51214 51200 70 105 27 NTN open — 80
51314 51300 70 125 40 NTN open — 160
51414 51400 70 150 60 NTN open — 285

Exact-dimension interchange groups at 70 mm bore

These d×D×B envelopes at a 70 mm bore are shared by several series or brands — the starting point for a dimensional cross reference:

Selecting a 70 mm bore bearing

The bore fixes the shaft, not the bearing capacity. At 70 mm the catalog spans 90–180 mm outside diameter: the light sections suit compact housings and moderate duty, while the larger ODs use bigger rolling elements and carry substantially more load. Select first by the required dynamic load rating C for the calculated L10 life, then by available radial space.

For a rotating inner ring a k5 shaft seat with an H7 housing is the usual starting point; an interference fit plus thermal growth consumes internal clearance, so C3 is the common industrial default rather than CN. Sealed variants (-2RS, -ZZ) trade a small amount of speed for contamination protection and maintenance-free operation — compare the sealed and open versions of the same envelope before substituting one for the other.

Frequently asked questions

What bearings have a 70 mm bore?

This index lists 48 verified bearing models with a 70 mm (2.756 in) bore across 7 bearing types, from 90 to 180 mm outside diameter. Open any model for the full specification table, seal/clearance options and graded cross references.

How do I choose between the 90–180 mm OD options for a 70 mm shaft?

On a fixed 70 mm bore, a smaller outside diameter means a lighter section for limited housing space and moderate load; a larger OD with a wider ring carries more radial and axial load and lasts longer at the same duty. Compare the C dynamic load rating in each model table, then match seal type, internal clearance (CN/C3/C4) and precision class to the actual mounting and operating temperature.

What shaft fit and bore code apply to 70 mm bearings?

A 70 mm bore on a rotating inner ring normally uses a k5 shaft seat with an H7 housing bore (verify against the catalogue for heavy or stationary-ring duty). In the ISO designation system 70 mm is bore code 14 (code × 5), so a 62-series bearing with this bore is the 6214.