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KOYO HK3012 Needle Roller Bearing 30x37x12mm (Open End)
KOYO HK3012 drawn cup needle roller bearing, open end. Bore 30mm, OD 37mm, width 12mm.
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- Drawn cup (shell type) needle roller bearing - thin-walled deep-drawn outer shell forms the raceway
- High radial load capacity from the needle roller complement
- Koyo (JTEKT) precision manufacture to JIS standards
- Lowest sectional height of any needle roller bearing for a very compact arrangement
- Maximum operating temperature approximately 140C
- Open ends (standard type) with a narrow flange gap to retain grease and exclude contaminants
- Press-fit into the housing bore - no axial location fixtures required
- Use with a hardened shaft or JR25x30x20.5 inner ring as the inner raceway
| Brand | Koyo JTEKT |
|---|---|
| Bearing Type | Drawn Cup Needle Roller Bearing |
| Series | HK |
| Measurement System | Metric |
| Inner Diameter (Bore) | 30 mm |
| Outer Diameter | 37 mm |
| Width | 12 mm |
| Configuration | Open End |
| Material | Chrome Bearing Steel |
| Dynamic Load Rating (Cr) | 22400 N (22.4 kN) |
| Static Load Rating (C₀) | 39600 N (39.6 kN) |
| Limiting Speed (Grease) | 7000 rpm |
| Limiting Speed (Oil) | 11000 rpm |
| Fillet Radius (r min) | 1 mm |
| Compatible Inner Ring | JR25x30x20.5 |
| Weight | 0.042 kg |
| Features & Benefits | Drawn cup (shell type) needle roller bearing - thin-walled deep-drawn outer shell forms the raceway High radial load capacity from the needle roller complement Koyo (JTEKT) precision manufacture to JIS standards Lowest sectional height of any needle roller bearing for a very compact arrangement Maximum operating temperature approximately 140C Open ends (standard type) with a narrow flange gap to retain grease and exclude contaminants Press-fit into the housing bore - no axial location fixtures required Use with a hardened shaft or JR25x30x20.5 inner ring as the inner raceway |
The KOYO HK3012 is a drawn cup (shell type) needle roller bearing with open ends, for a 30mm shaft (metric series). Its thin-walled, deep-drawn outer shell forms the outer raceway, giving the lowest sectional height of any needle bearing while carrying high radial loads in a compact, economical package. Boundary dimensions 30 x 37 x 12mm.
The open-end (standard) type has a narrow flange gap that helps retain grease and exclude contamination. The bearing is press-fitted into the housing bore, so no axial location fixtures are needed; maximum operating temperature approximately 140C. Use with a hardened shaft or the JR25x30x20.5 inner ring as the inner raceway. Manufactured by Koyo (JTEKT), Japan.
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