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The NTN 29420 is a thrust spherical roller bearing with a 100 mm straight bore. Designed for heavy axial loads in low-speed applications such as marine propulsion, crane hooks, and oilfield equipment. Features a steel cage and accommodates combined radial and axial loads.
MODEL 29420
$2,098.04 Each
Prices are subject to change
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Returnable:No
Bore Type
Round
Bore type
Round
Cage Material
Brass
Cage material
Brass
Cage Type
Machined - Two Piece
Cage type
Machined - two piece
Configuration
One
Enclosure
Open
Height
8.268
I.D.
100 mm
Length
8.268
Limiting Speed - Oil
1500 RPM
Limiting speed - oil
1500 RPM
Material
Through hardened steel
O.D.
210 mm
Radial Internal Clearance
CN
Radial internal clearance
CN
Ring Modification
Plain
Ring modification
Plain
Type
Spherical Thrust Roller Bearing
Width
2.6378
Technical Specifications
Type | Spherical Thrust Roller Bearing |
Bore Type | Round |
Material | Through Hardened Steel |
Cage Type | Machined - Two Piece |
Cage Material | Brass |
Limiting Speed - Oil | 1500 RPM |
Configuration | One |
Ring Modification | Plain |
Radial Internal Clearance | CN |
Static Load Rating | 480000 lbf2130000 N2130.00 kN |
Dynamic Load Rating | 154000 lbf685000 N685.00 kN |
Enclosure | Open |
Weight | 25.353 lb11.500 kg |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 3.9370 in100.000 mm |
D | 8.2677 in210.000 mm |
d1 | 7.8740 in200.000 mm |
D1 | 5.7480 in146.000 mm |
T | 2.6378 in67.000 mm |
A | 2.4409 in62.000 mm |
B1 | 0.9449 in24.000 mm |
C | 1.2598 in32.000 mm |
r | 0.1181 in3.000 mm |
da min | 5.9055 in150.000 mm |
Da max | 6.8898 in175.000 mm |
ras 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.
| Brand | MROSupply Fasteners |
| Model | FSTPCK-105415 |