COLLET CHUCKS
MEGA ER GRIP CLAMPING RANGE: Ø.075"-.787" For Drills, Reamers, Taps & Finishing End Mills
MAX 35,000 RPM
COOLANT
THROUGH
Adjusting Screw (Optional)
H
L 1
BCV No.
L
R
SPINDLE SYSTEM DUAL CONTACT
Catalog Number
Nut (NOT Included)
Max RPM
Weight (lbs.)
Ød
ØD
L
L 1
H
Collet
Wrench
BCV40-MEGAER11-4NL BCV40-MEGAER16-3NL BCV40-MEGAER16-4NL BCV40-MEGAER16-5NL BCV40-MEGAER16-6NL BCV40-MEGAER20-3NL BCV40-MEGAER20-4NL BCV40-MEGAER20-5NL BCV40-MEGAER20-6NL BCV40-MEGAER25-3NL BCV40-MEGAER25-4NL BCV40-MEGAER25-5NL BCV40-MEGAER25-6NL BCV40-MEGAER32-3.25NL BCV40-MEGAER32-4NL BCV40-MEGAER32-5NL BCV40-MEGAER32-6NL BCV50-MEGAER16-3.5NL BCV50-MEGAER16-5NL BCV50-MEGAER16-6NL BCV50-MEGAER20-3.5NL BCV50-MEGAER20-5NL BCV50-MEGAER20-6NL BCV50-MEGAER25-3.5NL BCV50-MEGAER25-5NL BCV50-MEGAER25-6NL BCV50-MEGAER32-3.5NL BCV50-MEGAER32-5NL BCV50-MEGAER32-6NL
.108-.236
.787
4.00 3.00 4.00 5.00 6.00 3.00 4.00 5.00 6.00 3.00 4.00 5.00 6.00 3.25 4.00 5.00 6.00 3.50 5.00 6.00 3.50 5.00 6.00 3.50 5.00 6.00 3.50 5.00 6.00
2.48 1.50 2.48 3.46 4.49 1.50 2.48 3.50 4.49 1.61 2.60 3.58 4.61
.91-1.69
MERN11*
MGR20
30,000 35,000 25,000 20,000 15,000 30,000 25,000 20,000 15,000 30,000 20,000 15,000 12,000 30,000 20,000 15,000 12,000 20,000 20,000 15,000 18,000 18,000 16,000 17,000 17,000 16,000 16,000 16,000 15,000
2.5 3.1 3.3 3.5 4.0 3.3 3.5 4.0 4.2 3.5 4.0 4.4 4.8 3.7 4.4 5.1 5.9 8.4 8.8 9.0 8.6 9.0 9.5 8.8 9.5 9.9 9.0
ERC11-
.075-.394
1.181
1.38-1.85 ERC16-
MERN16*
MGR30L
.108-.512
1.378
1.65-2.44 ERC20-
MERN20*
MGR35L
1.73-2.56
.108-.630
1.654
MERN25*
MGR42L
ERC25-
1.73-2.64
.108-.787
1.969
— 1.97-2.68 ERC32-
MERN32*
MGR50L
1.85 3.35 4.33 1.85 3.35 4.33 1.85 3.35 4.33 1.89 3.39 4.37
.075-.394
1.181
1.39-1.84 ERC16-
MERN16*
MGR30L
.108-.512
1.378
1.65-2.43 ERC20-
MERN20*
MGR35L
.108-.630
1.654
1.74-2.65 ERC25-
MERN25*
MGR42L
.108-.787
1.969
1.97-2.68 ERC32-
MERN32*
MGR50L
10.1 11.0
! CAUTION
*Nut, adjusting screw, collet and wrench are not included • Weight does not include collet • MEGA ER GRIP is not able to use DIN6499 Form-A collets and ESX collets
To maintain the accuracy of the tool assembly, do not use collets and nuts manufactured by another company with the chuck body of BIG’s MEGA ER GRIP. We cannot guarantee the accuracy statement for our collets if they are assembled on the chuck body of another manufacturer.
• Please note that the practical spindle speed may be considerably influenced by the machine rigidity and tool balance, when using, slowly ramp up to the appropriate speed starting from slow speeds • “H” indicates the adjustment length with an adjusting screw
ACCESSORIES
COLLET PG. 376
MEGA NUT* PG. 379
PERFECT SEAL PG. 380
SOLID NUT PG. 379
MEGA WRENCH PG. 392
SCREW PG. 413
69
*MEGA NUT is the recommended nut to achieve high accuracy and clamping force
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