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NU312 cylindrical roller bearing ring envelope
NU312 cylindrical roller bearing ring envelope: bore Ø60, OD Ø130, width 31; one solid ring, corners rounded at r min 2.1 (r1 min 2.1 is not drawn); no raceway, rollers, cage or outer-ring ribs (roller-set inscribed Ø Fw 77 is in the table); nominal values
Exact dimensions. True size, no tolerance added. Threads are plain cylinders at the major diameter.
STEP STL free, CC BY 4.0 (credit "Xem Studio")
Dimensions
| bearing | NU312 |
|---|---|
| bore d, mm | 60 |
| OD D, mm | 130 |
| width B, mm | 31 |
| r min, mm | 2.1 |
| r1 min, mm | 2.1 |
| inner raceway Ø Fw, mm | 77 |
| source | Koyo |
https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.From the full sheet
Cylindrical roller bearings NU2xx and NU3xx (NU205, NU206, NU208, NU305, NU310 and more): bore, OD, width, r, Fw + 18 ring-envelope STEP/STL files: every size, notes, mating features and sources. What are the dimensions of an NU204, NU205, NU206, NU208, NU305 or NU310 cylindrical roller bearing: bore, OD, width, r and inner raceway diameter?
Other sizes
- NU204 cylindrical roller bearing ring envelope
- NU205 cylindrical roller bearing ring envelope
- NU206 cylindrical roller bearing ring envelope
- NU207 cylindrical roller bearing ring envelope
- NU208 cylindrical roller bearing ring envelope
- NU209 cylindrical roller bearing ring envelope
- NU210 cylindrical roller bearing ring envelope
- NU211 cylindrical roller bearing ring envelope
- NU212 cylindrical roller bearing ring envelope
- NU304 cylindrical roller bearing ring envelope
- NU305 cylindrical roller bearing ring envelope
- NU306 cylindrical roller bearing ring envelope
- NU307 cylindrical roller bearing ring envelope
- NU308 cylindrical roller bearing ring envelope
- NU309 cylindrical roller bearing ring envelope
- NU310 cylindrical roller bearing ring envelope
- NU311 cylindrical roller bearing ring envelope