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NTN NUP317G1C3 is a single-row cylindrical roller bearing with an 85 mm straight bore. The NUP configuration features a double-flanged outer ring with a retainer, providing axial location in both directions. It has a pressed steel cage, C3 clearance, and is open (unsealed). Suitable for gearboxes, electric motors, and industrial machinery requiring axial positioning.
MODEL NUP317G1C3
$1,022.72 Each
Prices are subject to change
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Returnable:No
B (in)
1.6142
Bore Type
Round
Bore type
Round
Cage Material
Pressed Steel
Cage material
Pressed steel
Configuration
One
D (in)
7.0866
d (in)
3.3465
Da max
6.5748 in
da min
3.8583 in
Db max
6.5748 in
Db min
6.2992 in
db min
3.8583 in
Dynamic Load Rating
65500 lbf
Dynamic load rating
65500 lbf
Enclosure
Open
I.D.
85 mm
J (in)
4.6614
Limiting Speed - Grease
3500 RPM
Limiting speed - grease
3500 RPM
Limiting Speed - Oil
4100 RPM
Limiting speed - oil
4100 RPM
O.D.
180 mm
Oil Hole
w/o Oil Hole
Oil hole
w/o Oil Hole
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
r (in)
0.1181
r1as max
0.0984 in
Radial Internal Clearance
C3
Radial internal clearance
C3
Static Load Rating
74000 lbf
Static load rating
74000 lbf
Tolerance
ISO class 0 (RBEC 1)
Type
Cylindrical Roller Bearing
Technical Specifications
Type | Cylindrical Roller Bearing |
Bore Type | Round |
Cage Material | Pressed Steel |
Limiting Speed - Oil | 4100 RPM |
Limiting Speed - Grease | 3500 RPM |
Configuration | One |
Tolerance | ISO Class 0 (RBEC 1) |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | C3 |
Static Load Rating | 74000 lbf330000 N330.00 kN |
Dynamic Load Rating | 65500 lbf291000 N291.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 3.3465 in85.000 mm |
D | 7.0866 in180.000 mm |
B | 1.6142 in41.000 mm |
J | 4.6614 in118.400 mm |
r | 0.1181 in3.000 mm |
da min | 3.8583 in98.000 mm |
db min | 3.8583 in98.000 mm |
Da max | 6.5748 in167.000 mm |
Db max | 6.5748 in167.000 mm |
Db min | 6.2992 in160.000 mm |
r1as max | 0.0984 in2.500 mm |
How do I choose the right type of bearing for my application?
Start with the load and how it’s applied. You need to know if you’re dealing with radial loads, axial loads, or a mix of both. Then look at speed, operating environment, and space constraints. For example, ball bearings are great for high speed and lighter loads, while roller bearings handle heavier loads but usually at lower speeds. If there’s contamination, moisture, or heat involved, you may need sealed bearings or specific materials. In most cases, the right choice comes down to matching load type, speed, and environment to the bearing design.