• KOYO Ball Bearings for Units, NA Series (Eccentric Locking Collar)
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KOYO Ball Bearings for Units, NA Series (Eccentric Locking Collar)

KOYO Ball Bearings for Units, NA Series (Eccentric Locking Collar)

Insert ball bearings for units with cylindrical bore fixed by an eccentric locking collar (NA series), shaft 20 to 60 mm.

Key features

  • Eccentric locking collar fixing
  • Spherical outer surface
  • Sealed and pre-greased
  • Suitable for one-direction rotation applications

Specifications

Product type Insert bearing (bearing for units)
Locking Eccentric locking collar
Series NA2
Source KOYO Ball & Roller Bearings catalogue (Bearing specification tables), p. B538-B539
NA204 d: 20 mm | D: 47 mm | B: 34.2 mm | C: 16 mm | Cr: 12.8 kN | C0r: 6.65 kN
NA205 d: 25 mm | D: 52 mm | B: 34.9 mm | C: 17 mm | Cr: 14.0 kN | C0r: 7.85 kN
NA206 d: 30 mm | D: 62 mm | B: 36.5 mm | C: 19 mm | Cr: 19.5 kN | C0r: 11.3 kN
NA207 d: 35 mm | D: 72 mm | B: 37.6 mm | C: 20 mm | Cr: 25.7 kN | C0r: 15.4 kN
NA208 d: 40 mm | D: 80 mm | B: 42.8 mm | C: 21 mm | Cr: 29.1 kN | C0r: 17.8 kN
NA209 d: 45 mm | D: 85 mm | B: 42.8 mm | C: 22 mm | Cr: 32.7 kN | C0r: 20.3 kN
NA210 d: 50 mm | D: 90 mm | B: 49.2 mm | C: 24 mm | Cr: 35.1 kN | C0r: 23.3 kN
NA211 d: 55 mm | D: 100 mm | B: 55.5 mm | C: 25 mm | Cr: 43.4 kN | C0r: 29.4 kN
NA212 d: 60 mm | D: 110 mm | B: 61.9 mm | C: 27 mm | Cr: 52.4 kN | C0r: 36.2 kN
Insert BearingsKOYO
9 product codes available in this family
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KOYO Ball Bearings for Units, NA Series (Eccentric Locking Collar)

Brand KOYO·Insert Bearings

Available part numbers (9)

NA204, NA205, NA206, NA207, NA208, NA209, NA210, NA211, NA212

How to order

Send the KOYO part numbers and quantities through our RFQ form or to info@prosourcemro.com. We confirm price, availability and lead time within 1 business day — no account needed.

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Product codes & specifications
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Product codeSpec
NA204d: 20 mm | D: 47 mm | B: 34.2 mm | C: 16 mm | Cr: 12.8 kN | C0r: 6.65 kN
NA205d: 25 mm | D: 52 mm | B: 34.9 mm | C: 17 mm | Cr: 14.0 kN | C0r: 7.85 kN
NA206d: 30 mm | D: 62 mm | B: 36.5 mm | C: 19 mm | Cr: 19.5 kN | C0r: 11.3 kN
NA207d: 35 mm | D: 72 mm | B: 37.6 mm | C: 20 mm | Cr: 25.7 kN | C0r: 15.4 kN
NA208d: 40 mm | D: 80 mm | B: 42.8 mm | C: 21 mm | Cr: 29.1 kN | C0r: 17.8 kN
NA209d: 45 mm | D: 85 mm | B: 42.8 mm | C: 22 mm | Cr: 32.7 kN | C0r: 20.3 kN
NA210d: 50 mm | D: 90 mm | B: 49.2 mm | C: 24 mm | Cr: 35.1 kN | C0r: 23.3 kN
NA211d: 55 mm | D: 100 mm | B: 55.5 mm | C: 25 mm | Cr: 43.4 kN | C0r: 29.4 kN
NA212d: 60 mm | D: 110 mm | B: 61.9 mm | C: 27 mm | Cr: 52.4 kN | C0r: 36.2 kN

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