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"A" Series Idler Pulleys are designed as a cost-effective compliment to our "H" Series Idler Pulleys. Available in many of the same sizes as the "H" Series, as well as several smaller sizes, the "A" Series Idler is built with our proprietary "A" Series bearing, saving our customers money when both loads and speeds permit its use. |
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Basic Load and Speed |
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75 lbs./ 6000 RPM maximum |
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A Series Load Ratings |
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The following load ratings, in pounds, are the result of extending the data developed in many individual tests at various RPM's and applied loads: |
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Avg. Life (Hours) |
RPM |
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500 |
1000 |
2000 |
4000 |
6000 |
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250 |
159 |
127 |
100 |
79 |
70 |
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500 |
122 |
98 |
77 |
61 |
54 |
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1000 |
98 |
78 |
61 |
49 |
43 |
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2000 |
77 |
61 |
48 |
38 |
34 |
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3000 |
63 |
51 |
40 |
32 |
28 |
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Tooled Sizes (Stickouts and OAL to closest 1/64) |
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The following table lists the production tooled "A" Series bearings. Should you have other requirements to fit you application, please consult the factory. |
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Bearing Number |
ID |
SM (Stickout, Mounting) |
SB (Stickout, backside) |
OAL |
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6000-416 |
1/4" |
1/2" |
11/32" |
27/32" |
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6000-510A |
5/16" |
5/16" |
5/16" |
41/64" |
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6000-522 |
5/16" |
45/64" |
35/64" |
1-1/4" |
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6000-610A |
3/8" |
5/16" |
5/16" |
41/64" |
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6000-611A |
3/8" |
11/32" |
11/32" |
11/16" |
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6000-611C |
3/8" |
13/32" |
5/16" |
23/32" |
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6000-613C |
3/8" |
13/32" |
9/32" |
11/16" |
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6000-614A |
3/8" |
7/16" |
7/16" |
7/8" |
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6000-616 |
3/8" |
1/2" |
11/32" |
27/32" |
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6000-616A |
Ш.382/.389 |
1/2" |
11/32" |
27/32" |
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6000-618 |
3/8" |
35/64" |
11/32" |
57/64" |
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6000-620 |
3/8" |
5/8" |
11/32" |
31/32" |
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6000-622 |
3/8" |
11/16" |
11/32" |
1-1/32" |
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6000-624 |
3/8" |
3/4" |
11/32" |
1-3/32" |
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6000-624A |
Ш.382/.389 |
3/4" |
11/32" |
1-3/32" |
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6000-625 |
3/8" |
23/32" |
3/8" |
1-3/32" |
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6000-628 |
3/8" |
7/8" |
11/32" |
1-7/32" |
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6000-629 |
3/8" |
29/32" |
11/32" |
1-1/4" |
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6000-633 |
3/8" |
1-1/32" |
11/32" |
1-3/8" |
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Bore Tolerances - (Designed to fit standard bolts) |
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Nominal Bore |
Size |
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Ш1/4" |
Ш.255/.262 |
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Ш5/16" |
Ш.314/.322 |
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Ш3/8" |
Ш.375/.382 |
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For further information contact NHI Product Engineering (support@nhipulleys.com) |
