Deep Groove Ball Bearings: The Industry Default and When to Reach for Something Else
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Single-row cylindrical roller bearing, 75 mm bore x 160 mm OD x 37 mm wide, NU non-locating design with a machined brass cage and C3 clearance — very high radial capacity, and it lets the shaft expand axially. One bearing.
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$120.07
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Here are some other options that might fit your project — cross-referenced equivalents and similar parts we have in stock and ready to ship. Need help choosing? Call 585-295-7880.
Single-Row Cylindrical Roller Bearing 75 x 160 x 37 mm, NU Design, Straight Bore, Two-Piece Brass Cage, P6 Precision, Non-Locating$150.69
Cylindrical Roller Bearing - NU Design, 75 mm ID, 130 mm OD, 25 mm Width, Open, CN$38.25
Cylindrical Roller Bearing — 75 mm ID, 139.07 mm OD, 1.46 in Height$53.47
Cylindrical Roller Bearing — 75 mm ID, 130 mm OD, 25 mm Width, N Design, Polyamide Cage, C3 Clearance$55.87| MFR / Brand | Consolidated |
|---|---|
| Model | NU 315 M C3 |
| Bearing Type | Cylindrical Roller Bearing, Open |
| ID | 75 mm |
| OD | 160 mm |
| Width | 37 mm |
| Material | Bearing Steel |
|---|---|
| Series | NU 3 |
| Base Number | NU315 |
| Industry Terms | Cylindrical roller bearing, non-locating bearing, free-end bearing, high radial capacity roller bearing, separable roller bearing |
| Common Misspellings | Consolodated, Consolidatd, NU315-MC3, NU-315MC3, NU3I5MC3 |
| Application Types | Gearboxes, electric motors, rolling mill shafts, crushers, fan and blower shafts |
| Bore Shaft Size | 75 mm |
| Mpn Variants | NU-315-M-C3, NU315MC3, NU315M C3, NU 315 M C3, NU315 |
| Rolling Elements | Cylindrical |
| Number Of Rows | 1 |
| Bore Type | Straight |
| Harmonization Code | 8482.50.00.00 |
| Part Number | NU-315-M-C3 |
A single-row cylindrical roller bearing, 75 mm bore x 160 mm OD x 37 mm wide, in the NU non-locating design with a machined brass cage and C3 internal clearance. Cylindrical rollers carry far more radial load than a ball bearing of the same envelope because the rollers contact the raceways along a line rather than at a point. The 300 heavy series at this bore is built for gearboxes, electric motors, rolling mill and crusher shafts, and any position where radial load is the dominant problem.
NU — non-locating design: two integral ribs on the outer ring, a ribless inner ring, so the shaft is free to move axially within the bearing.
315 — ISO heavy series, 75 x 160 x 37 mm.
M — machined brass cage.
C3 — internal clearance greater than normal.
The design suffix is the single most important thing on this bearing, and it is where substitutions go wrong. An NU bearing carries radial load only and provides no axial location at all — the rollers slide along the plain inner ring, which is exactly what you want at the non-locating end of a shaft so that thermal growth is absorbed instead of being pushed into the bearings. An NJ locates the shaft in one direction and an NUP in both. Substituting an NU where an NJ or NUP belongs lets the shaft walk, and the machine will tell you about it. C3 clearance runs looser than normal at rest, which suits hot running, tight interference fits and heavily loaded shafts where the inner ring grows relative to the outer. A machined brass cage takes higher speeds, shock loading and temperature than a pressed steel cage, and the cage code changes the load rating.
Bore: 75 mm.
Outside diameter: 160 mm.
Width: 37 mm.
Bearing type: single-row cylindrical roller.
Design: NU, non-locating (no axial location).
Cage: machined brass (M).
Internal clearance: C3, greater than normal.
Series: 300, heavy.
Rows: 1.
Closure: open.
Bore type: straight.
Bearing material: bearing steel.
Dynamic load rating: 232 kN.
Static load rating: 240 kN.
Limiting speed: 4800 rpm.
Precision rating: Normal.
Operating temperature range: -30 °C to 150 °C.
Item weight: 6.50 lbs.
Harmonization code: 8482.50.00.00.
One bearing. NU bearings have a separable inner ring, so the inner ring can be mounted on the shaft and the outer ring with rollers and cage into the housing, then brought together at assembly — a real advantage on a large shaft. Both parts belong to this bearing and are not interchangeable with the rings of another.
Direct equivalents are NU315 cylindrical roller bearings with a machined brass cage and C3 clearance from other makers — NU315-E-M1-C3 in the FAG scheme, NU315ECM/C3 in the SKF scheme, NU315EM C3 in the NSK scheme, and the ZKL NU315M C3 the carton references. Related but NOT interchangeable: NJ315 (locates one direction), NUP315 (locates both), N315 (ribs on the inner ring instead), and normal-clearance or polyamide/pressed-steel cage versions of the same number. Design suffix, clearance and cage all have to match.
$167.48
9 in stock
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