Tililt

What are the dimensions of a 6220 bearing?

Answer 100 × 180 × 34 mm

The 6220 is a deep-groove ball bearing: 100 mm bore, 180 mm outside diameter, 34 mm wide.

How it is worked out

  1. Type6 → deep-groove ball bearing
  2. Series62 → series 62 · light · dimension series 02
  3. Bore code20 → 20 × 5 = 100 mm

d = bore code × 5 mm (04+) · 00 = 10 · 01 = 12 · 02 = 15 · 03 = 17 mm

Worth knowing

In inches
3.937 × 7.087 × 1.339 in. A metric bearing: inch-series bearings (R8, 1600…) do not fit the same shaft.
2RS · 2RS1 · 2RSH · DDU · LLU
Rubber seal on both sides, greased for life. Best against dirt and water, slightly more drag. The same bearing by brand: SKF 6220-2RSH or -2RS1, FAG 6220-2RSR, NSK 6220DDU, NTN 6220LLU.
ZZ · 2Z · 2ZR
Metal shield on both sides. Less friction and more speed than a seal, but not watertight. SKF 6220-2Z, FAG 6220-2ZR, NSK and NTN 6220ZZ.
RS · Z
Seal (RS) or shield (Z) on one side only, the other side open: for bearings fed oil or grease by the machine.
C3
Internal clearance larger than normal. Standard on electric motors and wherever the shaft runs hot or the fit is tight. Replace a C3 with a C3.
Interchangeable?
Yes. ISO 15 fixes the bore, outside diameter and width, so a 6220 from any maker fits the same shaft and housing. Seals, cage, clearance and quality are what differ.

Other bores in the 62 series

Same 100 mm bore, other series

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