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Products >> Pressbearings >> Needle Roller Bearing, Knurling, Inch |
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Needle Roller Bearing
PRESSBEARINGS – INCH |
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- Specs
- Drawing
- Installation
- Shaft Recommendations
• Drawn Cup Needle Roller Bearing
• Carbon Steel Retainer, Black Oxide Finish
Features:
• Self-clinching • Self-aligning to ±5° or nonaligning
• High-speed, high-load applications • Knurling ensures secure self-clinching
• Simple quick installation • Major assembly and production savings
• Mounting blocks not necessary
Operating Temperature:
-22°F to +248°F
NOTE: Hardened steel shaft required.
*To be discontinued when present stock is depleted.
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INSTALLATION:
1. Punch or drill and ream a hole of diameter A in panel as specified in the Design Parameters table.
DO NOT DEBURR OR BREAK EDGE OF HOLE.
2. Place bearing assembly in hole. The slight interference fit assures centering the assembly in the mounting hole.
3. Using an anvil with diameter N, a minimum depth of O and a punch diameter of P, press the bearing assembly into the panel by constantly applying a force of F, per the table, until the assembly is flush with the panel surface.
DO NOT USE HAMMER BLOWS!
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TOOLING & INSTALLATION DATA
Nominal
Shaft
Diameter |
N
Anvil Dia.
+.005
-.000 |
O
Min.
Anvil
Depth |
P
Min.
Punch
Dia. |
CL
Min. Dist.
Centerline to
Panel Edge |
Installation
Force |
| F |
Cold-Rolled
Steel tons |
| SELF-ALIGNING |
| 1/8 |
.515 |
.60 |
.75 |
.38 |
5.0 |
| 3/16 |
.640 |
.66 |
.87 |
.45 |
5.5 |
| 1/4 |
.640 |
.66 |
.87 |
.45 |
5.5 |
| 5/16 |
.827 |
.84 |
1.07 |
.50 |
5.5 |
| 3/8 |
.827 |
.84 |
1.07 |
.50 |
5.5 |
| 1/2 |
1.078 |
.97 |
1.30 |
.75 |
6.0 |
| 5/8 |
1.265 |
1.09 |
1.50 |
.75 |
6.0 |
| NONALIGNING |
| 1/8 |
.390 |
.51 |
.62 |
.25 |
2.0 |
| 3/16 |
.515 |
.70 |
.75 |
.38 |
5.0 |
| 1/4 |
.640 |
.64 |
.87 |
.45 |
5.5 |
| 5/16 |
.640 |
.64 |
.87 |
.45 |
5.5 |
| 3/8 |
.827 |
.64 |
1.07 |
.50 |
5.5 |
| 1/2 |
.890 |
.70 |
1.12 |
.63 |
6.0 |
| 9/16 |
1.078 |
.94 |
1.30 |
.75 |
6.0 |
| 3/4 |
1.265 |
.83 |
1.50 |
.75 |
6.0 |
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SHAFT RECOMMENDATIONS:
Shafts should be hardened to Rc 58 to 64 with 16 µin. finish. Shaft ends should have radii or be chamfered.
INSTALLATION NOTES:
1. The punch must be relieved to accommodate protruding insert.
2. DO NOT PRESS BEARING ON INSERT!
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SHAFT DIAMETERS
Nominal
Shaft
Diameter |
SELF-ALIGNING |
NONALIGNING |
Min.
Diameter |
Max.
Diameter |
Min.
Diameter |
Max.
Diameter |
| 1/8 |
.1247 |
.1250 |
.1247 |
.1250 |
| 3/16 |
.1872 |
.1875 |
.1872 |
.1875 |
| 1/4 |
.2495 |
.2500 |
.2495 |
.2500 |
| 5/16 |
.3120 |
.3125 |
.3120 |
.3125 |
| 3/8 |
.3754 |
.3759 |
.3745 |
.3750 |
| 1/2 |
.4995 |
.5000 |
.4995 |
.5005 |
| 5/8 |
.6245 |
.6250 |
.6245 |
.6250 |
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DESIGN PARAMETERS
| Part Number |
Nom.
I.D. |
Shaft Dia. |
A
Panel
Hole |
B
Min. Panel
Thickness |
C
Knurl
O.D. |
D
Height |
Max.
Speed
rpm |
Max. Radial
Dyn. Load
lbf |
| Min. |
Max. |
| FIGURE 1 – SELF-ALIGNING |
| BDNRSS-SAK125 |
1/8 |
.1247 |
.1250 |
.500 |
.04 |
.55 |
.40 |
31500 |
240 |
| BDNRSS-SAK187 |
3/16 |
.1872 |
.1875 |
.625 |
.06 |
.67 |
.46 |
21000 |
630 |
| BDNRSS-SAK250 |
1/4 |
.2495 |
.2500 |
.625 |
.06 |
.67 |
.46 |
44000 |
570 |
| BDNRSS-SAK312 |
5/16 |
.3120 |
.3125 |
.812 |
.06 |
.87 |
.64 |
35500 |
650 |
| BDNRSS-SAK375 |
3/8 |
.3745 |
.3759 |
.812 |
.06 |
.87 |
.64 |
29500 |
650 |
| BDNRSS-SAK500 |
1/2 |
.4995 |
.5000 |
1.063 |
.075 |
1.10 |
.77 |
22000 |
1040 |
| BDNRSS-SAK625 |
5/8 |
.6245 |
.6250 |
1.250 |
.09 |
1.30 |
.89 |
17600 |
1830 |
| FIGURE 2 – NONALIGNING |
| BDNRSS-NAK125 |
1/8 |
.1247 |
.1250 |
.375 |
.04 |
.42 |
.31 |
31500 |
240 |
| BDNRSS-NAK187 |
3/16 |
.1872 |
.1875 |
.500 |
.04 |
.55 |
.50 |
21000 |
630 |
| BDNRSS-NAK250 |
1/4 |
.2495 |
.2500 |
.625 |
.06 |
.67 |
.44 |
44000 |
570 |
| BDNRSS-NAK312 |
5/16 |
.3120 |
.3125 |
.625 |
.06 |
.67 |
.44 |
35500 |
650 |
| BDNRSS-NAK375 |
3/8 |
.3745 |
.3750 |
.812 |
.06 |
.87 |
.44 |
29500 |
650 |
| BDNRSS-NAK500 |
1/2 |
.4995 |
.5000 |
.875 |
.06 |
.92 |
.50 |
22000 |
1040 |
| BDNRSS-NAK625* |
5/8 |
.6245 |
.6250 |
1.063 |
.075 |
1.10 |
.63 |
17600 |
1830 |
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