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NTN NUTR208X yoke type track roller bearing with inner ring, NUTR type, spherical outer diameter. Features a 208 mm bore and open design. Constructed from high carbon chrome steel for durability in cam follower and track roller applications.
MODEL NUTR208X
$198.69 Each
Prices are subject to change
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Returnable:No
B (in)
1.2598
B Tolerance
0/-0.250 mm
Bearing Type
Needle Roller Bearing
C (in)
1.1811
Cage material
None
D (0/-0.050)
3.1496 in
d (in)
1.5748
Dynamic Load Rating
19600 lbf
Dynamic load rating
19600 lbf
e (in)
2.0079
Enclosure
Open
F (in)
1.8701
I.D.
40 mm
Limiting Speed - Grease
2100 RPM
Limiting speed - grease
2100 RPM
Load Rating of Track
10000 lbf
Material
High carbon chrome steel
O.D.
80 mm
Operating Temperature Range
-40 to 250 °F
Operating temperature range
-40 to 250 ºF
Outside Ring Type
Cylindrical
r (in)
0.0236
Roller Type
Cylindrical
Roller type
Cylindrical
Static Load Rating
28100 lbf
Static load rating
28100 lbf
Type
Yoke Type Track Roller
Technical Specifications
Type | Yoke Type Track Roller |
|---|---|
Roller Type | Cylindrical |
Bearing Type | Needle Roller Bearing |
Material | High Carbon Chrome Steel |
Cage Material | None |
Outside Ring Type | Cylindrical |
Limiting Speed - Grease | 2100 RPM |
Enclosure | Open |
Static Load Rating | 281 lbf125000 N125.00 kN |
Dynamic Load Rating | 196 lbf87000 N87.00 kN |
Load Rating of Track | 10000 lbf44500 N |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 1.5748 in40.000 mm |
|---|---|
D (0/-0.050) | 3.1496 in80.000 mm |
F | 1.8701 in47.500 mm |
e | 2.0079 in51.000 mm |
C | 1.1811 in30.000 mm |
B | 1.2598 in32.000 mm |
B Tolerance | 0/-0.250 mm |
r | 0.0236 in0.600 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.
