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Double Row Cylindrical Roller Bearing w/ Tapered Bore - Type NN
MODEL NN4920KNAP4
$8,456.87 Each
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B (in)
1.5748
Bore type
Tapered
Bore Type
Tapered
C (in)
1.5748
Cage material
High strength, 2 piece, machined brass
Cage Material
High Strength, 2 piece, Machined Brass
Configuration
Two
D (in)
5.5118
d (in)
3.9370
Da max
5.1575 in
da min
4.1929 in
Db max
5.2559 in
db min
4.3307 in
Db min
5.1575 in
Dynamic load rating
29500 lbf
Dynamic Load Rating
29500 lbf
Enclosure
Open
Ew
5.0787 in
Limiting speed - grease
4300 RPM
Limiting Speed - Grease
4300 RPM
Limiting speed - oil
5100 RPM
Limiting Speed - Oil
5100 RPM
Material
Hardened Alloy Steel
Oil hole
w/o Oil Hole
Oil Hole
w/o Oil Hole
Operating temperature range
-40 to 250 ºF
Operating Temperature Range
-40 to 250 °F
Precision
ISO Class 4
r (in)
0.0433
Radial internal clearance
C0NA
Radial Internal Clearance
C0NA
ras max
0.0394 in
Static load rating
58500 lbf
Static Load Rating
58500 lbf
Taper
1:12
Type
Cylindrical Roller Bearing
Technical Specifications
Type | Cylindrical Roller Bearing |
Bore Type | Tapered |
Material | Hardened Alloy Steel |
Cage Material | High Strength, 2 piece, Machined Brass |
Limiting Speed - Oil | 5100 RPM |
Limiting Speed - Grease | 4300 RPM |
Taper | 1:12 |
Precision | ISO Class 4 |
Configuration | Two |
Oil Hole | w/o Oil Hole |
Radial Internal Clearance | C0NA |
Static Load Rating | 58500 lbf260000 N260.00 kN |
Dynamic Load Rating | 29500 lbf131000 N131.00 kN |
Enclosure | Open |
Operating Temperature Range | -40 to 250 F-40 to 120 C |
Dimensional Specifications
| |
d | 3.9370 in100.000 mm |
D | 5.5118 in140.000 mm |
B | 1.5748 in40.000 mm |
C | 1.5748 in40.000 mm |
Ew | 5.0787 in129.000 mm |
r | 0.0433 in1.100 mm |
da min | 4.1929 in106.500 mm |
db min | 4.3307 in110.000 mm |
Da max | 5.1575 in131.000 mm |
Db min | 5.1575 in131.000 mm |
Db max | 5.2559 in133.500 mm |
ras max | 0.0394 in1.000 mm |
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