Ball Screw

BNFN
Precision

Double-nut Preload Model BNFN
The most common type with a preload provided via a spacer between the two combined ball screw nuts to eliminate backlash.

Features of this product are:
- Combinations of various shaft diameters and leads
- Standard-Stock type
- Accuracy standards compliant with JIS


Specification:
BNFN 5510-2.5
BNFN 5510-2.5
Screw shaft outer diameter: 55 mm
Lead: 10 mm
Ball center-to- center diameter: 56.75 mm
Outer diameter: 102 mm
Flange diameter: 144 mm
Overall length: 141 mm
Load Dynamic Rating: 33.4 kN
Load Static Rating: 97 kN

BNFN 5510-5
BNFN 5510-5
Screw shaft outer diameter: 55 mm
Lead: 10 mm
Ball center-to- center diameter: 56.75 mm
Outer diameter: 102 mm
Flange diameter: 144 mm
Overall length: 201 mm
Load Dynamic Rating: 60.7 kN
Load Static Rating: 194 kN

BNFN 5510-7.5
BNFN 5510-7.5
Screw shaft outer diameter: 55 mm
Lead: 10 mm
Ball center-to- center diameter: 56.75 mm
Outer diameter: 102 mm
Flange diameter: 144 mm
Overall length: 261 mm
Load Dynamic Rating: 85.9 kN
Load Static Rating: 291.1 kN

BNFN 5512-2.5
BNFN 5512-2.5
Screw shaft outer diameter: 55 mm
Lead: 12 mm
Ball center-to- center diameter: 57 mm
Outer diameter: 105 mm
Flange diameter: 147 mm
Overall length: 165 mm
Load Dynamic Rating: 39.3 kN
Load Static Rating: 108.8 kN

BNFN 5512-3
BNFN 5512-3
Screw shaft outer diameter: 55 mm
Lead: 12 mm
Ball center-to- center diameter: 57 mm
Outer diameter: 105 mm
Flange diameter: 147 mm
Overall length: 191 mm
Load Dynamic Rating: 46 kN
Load Static Rating: 131.3 kN

BNFN 5512-3.5
BNFN 5512-3.5
Screw shaft outer diameter: 55 mm
Lead: 12 mm
Ball center-to- center diameter: 57 mm
Outer diameter: 105 mm
Flange diameter: 147 mm
Overall length: 189 mm
Load Dynamic Rating: 52.4 kN
Load Static Rating: 152.9 kN

BNFN 5512-5
BNFN 5512-5
Screw shaft outer diameter: 55 mm
Lead: 12 mm
Ball center-to- center diameter: 57 mm
Outer diameter: 105 mm
Flange diameter: 147 mm
Overall length: 237 mm
Load Dynamic Rating: 71.3 kN
Load Static Rating: 218.5 kN

BNFN 5512-7.5
BNFN 5512-7.5
Screw shaft outer diameter: 55 mm
Lead: 12 mm
Ball center-to- center diameter: 57 mm
Outer diameter: 105 mm
Flange diameter: 147 mm
Overall length: 309 mm
Load Dynamic Rating: 100.9 kN
Load Static Rating: 327.3 kN

BNFN 5516-2.5
BNFN 5516-2.5
Screw shaft outer diameter: 55 mm
Lead: 16 mm
Ball center-to- center diameter: 57.7 mm
Outer diameter: 110 mm
Flange diameter: 158 mm
Overall length: 196 mm
Load Dynamic Rating: 76.1 kN
Load Static Rating: 201.9 kN

BNFN 5516-5
BNFN 5516-5
Screw shaft outer diameter: 55 mm
Lead: 16 mm
Ball center-to- center diameter: 57.7 mm
Outer diameter: 110 mm
Flange diameter: 158 mm
Overall length: 292 mm
Load Dynamic Rating: 138.2 kN
Load Static Rating: 402.8 kN

BNFN 5520-2.5
BNFN 5520-2.5
Screw shaft outer diameter: 55 mm
Lead: 20 mm
Ball center-to- center diameter: 57.7 mm
Outer diameter: 112 mm
Flange diameter: 158 mm
Overall length: 227 mm
Load Dynamic Rating: 76 kN
Load Static Rating: 201.9 kN

BNFN 5520-5
BNFN 5520-5
Screw shaft outer diameter: 55 mm
Lead: 20 mm
Ball center-to- center diameter: 57.7 mm
Outer diameter: 112 mm
Flange diameter: 158 mm
Overall length: 347 mm
Load Dynamic Rating: 138.2 kN
Load Static Rating: 403.8 kN

BNFN 6310-2.5
BNFN 6310-2.5
Screw shaft outer diameter: 63 mm
Lead: 10 mm
Ball center-to- center diameter: 64.75 mm
Outer diameter: 108 mm
Flange diameter: 154 mm
Overall length: 137 mm
Load Dynamic Rating: 35.4 kN
Load Static Rating: 111.7 kN

BNFN 6310-5
BNFN 6310-5
Screw shaft outer diameter: 63 mm
Lead: 10 mm
Ball center-to- center diameter: 64.75 mm
Outer diameter: 108 mm
Flange diameter: 154 mm
Overall length: 197 mm
Load Dynamic Rating: 64.2 kN
Load Static Rating: 222.5 kN

BNFN 6310-7.5
BNFN 6310-7.5
Screw shaft outer diameter: 63 mm
Lead: 10 mm
Ball center-to- center diameter: 64.75 mm
Outer diameter: 108 mm
Flange diameter: 154 mm
Overall length: 257 mm
Load Dynamic Rating: 90.9 kN
Load Static Rating: 334.2 kN

BNFN 6312A-2.5
BNFN 6312A-2.5
Screw shaft outer diameter: 63 mm
Lead: 12 mm
Ball center-to- center diameter: 65.25 mm
Outer diameter: 115 mm
Flange diameter: 161 mm
Overall length: 159 mm
Load Dynamic Rating: 48.1 kN
Load Static Rating: 139.2 kN

BNFN 6312A-5
BNFN 6312A-5
Screw shaft outer diameter: 63 mm
Lead: 12 mm
Ball center-to- center diameter: 65.25 mm
Outer diameter: 115 mm
Flange diameter: 161 mm
Overall length: 231 mm
Load Dynamic Rating: 87.4 kN
Load Static Rating: 278.3 kN

BNFN 6316-2.5
BNFN 6316-2.5
Screw shaft outer diameter: 63 mm
Lead: 16 mm
Ball center-to- center diameter: 65.7 mm
Outer diameter: 122 mm
Flange diameter: 184 mm
Overall length: 208 mm
Load Dynamic Rating: 81.1 kN
Load Static Rating: 231.3 kN

BNFN 6316-5
BNFN 6316-5
Screw shaft outer diameter: 63 mm
Lead: 16 mm
Ball center-to- center diameter: 65.7 mm
Outer diameter: 122 mm
Flange diameter: 184 mm
Overall length: 304 mm
Load Dynamic Rating: 147 kN
Load Static Rating: 462.6 kN

BNFN 6320-2.5
BNFN 6320-2.5
Screw shaft outer diameter: 63 mm
Lead: 20 mm
Ball center-to- center diameter: 65.7 mm
Outer diameter: 122 mm
Flange diameter: 180 mm
Overall length: 227 mm
Load Dynamic Rating: 81 kN
Load Static Rating: 231.3 kN

BNFN 6320-5
BNFN 6320-5
Screw shaft outer diameter: 63 mm
Lead: 20 mm
Ball center-to- center diameter: 65.7 mm
Outer diameter: 122 mm
Flange diameter: 180 mm
Overall length: 347 mm
Load Dynamic Rating: 147 kN
Load Static Rating: 463.5 kN

BNFN 7010-2.5
BNFN 7010-2.5
Screw shaft outer diameter: 70 mm
Lead: 10 mm
Ball center-to- center diameter: 71.75 mm
Outer diameter: 125 mm
Flange diameter: 167 mm
Overall length: 141 mm
Load Dynamic Rating: 36.8 kN
Load Static Rating: 123.5 kN

BNFN 7010-5
BNFN 7010-5
Screw shaft outer diameter: 70 mm
Lead: 10 mm
Ball center-to- center diameter: 71.75 mm
Outer diameter: 125 mm
Flange diameter: 167 mm
Overall length: 201 mm
Load Dynamic Rating: 66.9 kN
Load Static Rating: 247 kN

BNFN 7010-7.5
BNFN 7010-7.5
Screw shaft outer diameter: 70 mm
Lead: 10 mm
Ball center-to- center diameter: 71.75 mm
Outer diameter: 125 mm
Flange diameter: 167 mm
Overall length: 261 mm
Load Dynamic Rating: 94.9 kN
Load Static Rating: 371.4 kN

BNFN 7012-2.5
BNFN 7012-2.5
Screw shaft outer diameter: 70 mm
Lead: 12 mm
Ball center-to- center diameter: 72 mm
Outer diameter: 128 mm
Flange diameter: 170 mm
Overall length: 165 mm
Load Dynamic Rating: 43.5 kN
Load Static Rating: 139.2 kN

BNFN 7012-5
BNFN 7012-5
Screw shaft outer diameter: 70 mm
Lead: 12 mm
Ball center-to- center diameter: 72 mm
Outer diameter: 128 mm
Flange diameter: 170 mm
Overall length: 237 mm
Load Dynamic Rating: 78.9 kN
Load Static Rating: 278.3 kN

BNFN 7012-7.5
BNFN 7012-7.5
Screw shaft outer diameter: 70 mm
Lead: 12 mm
Ball center-to- center diameter: 72 mm
Outer diameter: 128 mm
Flange diameter: 170 mm
Overall length: 309 mm
Load Dynamic Rating: 111.7 kN
Load Static Rating: 417.5 kN

BNFN 7020-5
BNFN 7020-5
Screw shaft outer diameter: 70 mm
Lead: 20 mm
Ball center-to- center diameter: 72.7 mm
Outer diameter: 130 mm
Flange diameter: 186 mm
Overall length: 325 mm
Load Dynamic Rating: 153.9 kN
Load Static Rating: 514.5 kN

BNFN 8010-2.5
BNFN 8010-2.5
Screw shaft outer diameter: 80 mm
Lead: 10 mm
Ball center-to- center diameter: 81.75 mm
Outer diameter: 130 mm
Flange diameter: 176 mm
Overall length: 137 mm
Load Dynamic Rating: 38.9 kN
Load Static Rating: 141.1 kN

BNFN 8010-5
BNFN 8010-5
Screw shaft outer diameter: 80 mm
Lead: 10 mm
Ball center-to- center diameter: 81.75 mm
Outer diameter: 130 mm
Flange diameter: 176 mm
Overall length: 197 mm
Load Dynamic Rating: 70.6 kN
Load Static Rating: 283.2 kN

BNFN 8010-7.5
BNFN 8010-7.5
Screw shaft outer diameter: 80 mm
Lead: 10 mm
Ball center-to- center diameter: 81.75 mm
Outer diameter: 130 mm
Flange diameter: 176 mm
Overall length: 257 mm
Load Dynamic Rating: 100 kN
Load Static Rating: 424.3 kN

BNFN 8012-5
BNFN 8012-5
Screw shaft outer diameter: 80 mm
Lead: 12 mm
Ball center-to- center diameter: 82.3 mm
Outer diameter: 135 mm
Flange diameter: 181 mm
Overall length: 231 mm
Load Dynamic Rating: 96.5 kN
Load Static Rating: 353.8 kN

BNFN 8020A-2.5
BNFN 8020A-2.5
Screw shaft outer diameter: 80 mm
Lead: 20 mm
Ball center-to- center diameter: 82.7 mm
Outer diameter: 143 mm
Flange diameter: 204 mm
Overall length: 227 mm
Load Dynamic Rating: 90.1 kN
Load Static Rating: 294 kN

BNFN 8020A-5
BNFN 8020A-5
Screw shaft outer diameter: 80 mm
Lead: 20 mm
Ball center-to- center diameter: 82.7 mm
Outer diameter: 143 mm
Flange diameter: 204 mm
Overall length: 347 mm
Load Dynamic Rating: 163.7 kN
Load Static Rating: 589 kN

BNFN 10020A-2.5
BNFN 10020A-2.5
Screw shaft outer diameter: 100 mm
Lead: 20 mm
Ball center-to- center diameter: 102.7 mm
Outer diameter: 170 mm
Flange diameter: 243 mm
Overall length: 231 mm
Load Dynamic Rating: 99 kN
Load Static Rating: 368.5 kN

BNFN 10020A-5
BNFN 10020A-5
Screw shaft outer diameter: 100 mm
Lead: 20 mm
Ball center-to- center diameter: 102.7 mm
Outer diameter: 170 mm
Flange diameter: 243 mm
Overall length: 351 mm
Load Dynamic Rating: 179.3 kN
Load Static Rating: 737 kN

BNFN 10020A-7.5
BNFN 10020A-7.5
Screw shaft outer diameter: 100 mm
Lead: 20 mm
Ball center-to- center diameter: 102.7 mm
Outer diameter: 170 mm
Flange diameter: 243 mm
Overall length: 471 mm
Load Dynamic Rating: 253.8 kN
Load Static Rating: 1105.4 kN



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