COLLET CHUCKS
Catalog Number
Nut (NOT Included)
H
Collet
Ød
ØD
L
L 1
Wrench
BBT50-MEGAER16-105NL BBT50-MEGAER16-135NL BBT50-MEGAER16-165NL BBT50-MEGAER20-105NL BBT50-MEGAER20-135NL BBT50-MEGAER20-165NL BBT50-MEGAER25-105NL BBT50-MEGAER25-135NL BBT50-MEGAER25-165NL BBT50-MEGAER32-105NL BBT50-MEGAER32-135NL BBT50-MEGAER32-165NL
4.13 5.31 6.50 4.13 5.31 6.50 4.13 5.31 6.50 4.13 5.31 6.50
2.32 3.31 4.49 2.36 3.35 4.53 2.32 3.50 4.69 2.32 3.50 4.69
.075-.394
1.181
1.38-1.85
MERN16*
MGR30L
ERC16-
.108-.512
1.378
1.65-2.44
MERN20*
MGR35L
ERC20-
.108-.630
1.654
1.73-2.64
MERN25*
MGR42L
ERC25-
.108-.787
1.969
1.97-2.68
MERN32*
MGR50L
ERC32-
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. ! 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
• 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 • Adjusting screws cannot be used with models marked
ACCESSORIES
COLLET PG. 386
MEGA NUT* PG. 389
PERFECT SEAL PG. 390
SOLID NUT PG. 389
MEGA WRENCH PG. 402
SCREW PG. 423
*MEGA NUT is the recommended nut to achieve high accuracy and clamping force
HIGH CONCENTRICITY
Capable of sealing high pressure coolant up to 7Mpa. For applications with coolant supplied through the tools. MEGA Wrench is used for tightening.
MEGA ER PERFECT SEAL
MEGA WRENCH
High accuracy and clamping force are provided with thrust ball bearings. Ideal for solid carbide drills and reamers. Slot-free outer diameter increases rigidity of the nut itself. The one-way clutch of the MEGA Wrench tightens the nut securely and easily by ratchet function. High performance solid nut with surface treatment for friction reduction. Slot-free outer diameter increases rigidity of the nut itself. The one-way clutch of the MEGA Wrench tightens the nut securely and easily by ratchet function.
MEGA ER NUT*
MEGA WRENCH
MEGA ER SOLID NUT
MEGA WRENCH
Basic nut with surface treatment for friction reduction. C-spanner is used for tightening.
ER NUT
C-SPANNER
*MEGA NUT is the recommended nut to achieve high accuracy and clamping force
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