FDCR

STOCK ITEM
Double Nut with Flange (DIN 69051).

Standard nuts are with oil-seals.

Best combination for smooth and backlash-free operation with high rigidity.

A double nut must always be used pre-loaded and have to be assembled on the ball screw spindle by Rollco. Standard preload is P2, see “Preload and clearance” in Technical information.

Lead accuracy G5 or better is required for proper function. For best performance, a ground spindle is recommended.

All dimensions in mm.

Product Information

Designation Select all Lead Time * Compatible with Dynamic Load Ratings Ca (N) Static Load Ratings C0a (N) CAD Compare
1 BKN12 / FKN12 / BFN12 / FFN12 10291 11223
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1 BKN15 / FKN15 / BFN15 / FFN15 14833 19571
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1 BKN20 / FKN20 / BFN20 / FFN20 16716 25320
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1 BKN17 / FKN17 / BFN17 / FFN17 28263 36248
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1 BKN25 / FKN25 / WBK25DF / BFN25 / FFN25 18874 33383
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1 BKN25 / FKN25 / WBK25DF / BFN25 / FFN25 47422 76861
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1 BKN30 / FKN30 / WBK30DF / WBK30DFF / BFN30 / FFN30 21013 42595
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1 BKN30 / FKN30 / WBK30DF / WBK30DFF / BFN30 / FFN30 52964 98826
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1 BKN40 / WBK40DF / WBK40DFF / BFN40 58203 120791
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*Green: Normally in stock, contact us for current status. Blue: Contact us for delivery time.

Designation Select all d0 x Lead A B L D H Q CAD Compare
16 x 5 48 10 80 28 40 M6
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20 x 5 58 12 92 36 44 M6
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25 x 5 62 12 92 40 48 M6
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25 x 10 62 12 153 40 48 M6
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32 x 5 80 12 92 50 62 M6
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32 x 10 80 16 160 50 62 M6
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40 x 5 93 15 96 63 70 M8
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40 x 10 93 18 162 63 70 M8
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50 x 10 110 16 162 75 85 M8
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Designation Select all Type X W CAD Compare
A 5.5 38
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A 6.6 47
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A 6.6 51
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A 6.6 51
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A 9 65
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A 9 65
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B 9 78
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B 9 78
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B 11 93
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Designation Select all Ball diameter Turns x circuits CAD Compare
3.175 1 x 3
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3.175 1 x 4
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3.175 1 x 4
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4.762 1 x 4
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3.175 1 x 4
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6.35 1 x 4
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3.175 1 x 4
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6.35 1 x 4
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6.35 1 x 4
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