BIG KAISER RA HOLDER

HIGH PERFORMANCE TOOLING SOLUTIONS Runout Adjustable RA Holder 2018-2019

RUNOUT ADJUSTABLE RA HOLDER

2

Quick Correction of Spindle Runout by Tool Holder Features Runout accuracy of machine tool spindles may be decreased after extended use. Long drilling or reaming operations on such machines leads to variations in precision, shortened tool life, etc. The RA Holder is an effective countermeasure to these problems. • Uniform hole diameter • Improves surface roughness • Extends tool life

Simple Design & Easy Adjustment

Runout Adjustment Screw (right & left)

Runout Adjustment Ring

(mark)

Lock Bolt

1. Rotate the runout adjustment screw and align the (mark) with the peak runout 2. Fix the runout adjustment ring by tightening (3) lock bolts 3. Adjust runout by rotating the runout adjustment screw

RUNOUT WITHOUT RA HOLDER 20μm

RUNOUT WITH RA HOLDER 2μm

3

RUNOUT ADJUSTABLE RA HOLDER

NEW BABY CHUCK CLAMPING RANGE: ø.5-20mm

COOLANT

R

S P I N D L E S Y S T E M DUA L CON T AC T

THROUGH

x (Cutting Tool Length)

x (Cutting Tool Length)

L

L

L 1

L 1

Adjusting Screw (Ordered Separately)

Adjusting Screw (Ordered Separately)

H

H

Adjusting Amount

Adjusting Amount

Fig. 1

K

Fig. 2

Adjustment

Catalog Number

Weight (lbs.)

Fig.

ød

øD øD 1

L

L 1

K

H

Collet

x=50mm x=100mm

BBT30-NBS8-75NRA

.5-8mm

1 2 1

.984 1.772 2.95 1.10

— .91-1.66

20μm 31μm 1.5 18μm 27μm 3.1 22μm 33μm 2.9 18μm 27μm 3.5 25μm 34μm 4.2 17μm 25μm 5.5 21μm 29μm 6.0 19μm 28μm 9.3 24μm 33μm 9.7 30μm 39μm 9.9 17μm 25μm 10.4 22μm 30μm 11.0

NBC8- †

-NBS13-110NRA

2.5-13mm

1.378 2.283 4.33 1.34 1.38

1.61-2.36 NBC13- †

BBT40-NBS8-90NRA

.5-8mm

.984 1.772 3.54 1.46

— .91-1.65

NBC8- †

-NBS13-90NRA

3.54 1.34 5.32 3.11

2.5-13mm

— 1.61-2.36 NBC13- †

1

1.378 2.283

-135NRA

-NBS20-120NRA

4.72 1.77 1.38 5.91 2.56 1.77

2.5-20mm

2

1.811 2.756

1.89-2.56 NBC20- †

-150NRA

BBT50-NBS13-105NRA

4.13 1.50 5.32 2.68 6.50 3.86 4.72 1.89 5.91 3.07

2.5-13mm

-135NRA -165NRA

1

1.378 2.283

— 1.61-2.36 NBC13- †

-NBS20-120NRA

2.5-20mm

1

1.811 2.756

— 1.89-2.56 NBC20- †

-150NRA

• Collet, wrench and adjusting screw must be ordered separately • “H” indicates the adjustment length with an adjusting screw • BCV available upon request

Runout Adjustment Amount The adjustment amount depends on the length of the holder and the tool projection length. The maximum adjustment amount possible for 50mm and 100mm tool projection lengths is listed in the table. The maximum adjustment amount is a reference figure available when the Adjustment Screw is tightened with the listed allowable torque. Allowable Torque for Adjusting Screw

Wrench (Optional)

Allowable Torque (N-m)

NEW BABY CHUCK

Adjusting Amount

NBS8-NRA NBS13-NRA NBS20-NRA

CK-T2.5

3

x=50mm (Cutting Tool Length) x=100mm (Cutting Tool Length)

CK-T3

6

RUNOUT ADJUSTABLE RA HOLDER

Hi-POWER MILLING CHUCK CLAMPING RANGE: ø20-32mm

COOLANT

R

S P I N D L E S Y S T E M DUA L CON T AC T

THROUGH

x (Cutting Tool Length)

x (Cutting Tool Length)

L

L

H

H

Adjusting Screw (Ordered Separately)

L 1

L 1

Adjusting Screw (Ordered Separately)

Adjusting Amount

Adjusting Amount

1.378

Fig. 2

Fig. 1

Adjustment

Catalog Number

Min Clamping

Fig.

ød

øD øD 1

L

L 1

K

H

Wrench Weight (lbs.)

x=50mm x=100mm

BBT40-HMC20S-130NRA

20mm 25mm 32mm 20mm 25mm 32mm

1.969 2.835 5.12 1.81 2.72-3.11 3.35 2.323 3.150 5.32 1.81 2.95-3.35 3.54 2.677 3.386 5.71 2.17 3.35-3.74 4.13 1.969 2.835 4.92 1.81 2.72-3.11 3.35 2.323 3.150 4.92 1.81 2.95-3.35 3.54 2.677 3.386 5.32 2.17 3.35-3.74 4.13

1.77 1.77 2.17 1.77 1.77 2.17

23μm 33μm FK45-50L 6.4 21μm 30μm FK58-62L 7.7 20μm 28μm FK68-75L 8.4 23μm 33μm FK45-50L 11.5 21μm 30μm FK58-62L 12.3 20μm 28μm FK68-75L 13.2

-HMC25S-135NRA -HMC32S-145NRA

1

BBT50-HMC20S-125NRA

-HMC25S-125NRA -HMC32S-135NRA

2

• Collet, wrench and adjusting screw must be ordered separately • “H” indicates the adjustment length with an adjusting screw • BCV available upon request

Runout Adjustment Amount The adjustment amount depends on the length of the holder and the tool projection length. The maximum adjustment amount possible for 50mm and 100mm tool projection lengths is listed in the table. The maximum adjustment amount is a reference figure available when the Adjustment Screw is tightened with the listed allowable torque. Allowable Torque for Adjusting Screw

Adjusting Amount

NEW Hi-POWER MILLING CHUCK

Wrench (Optional)

Allowable Torque (N-m)

HMC20S-NRA HMC25S-NRA HMC32S-NRA

x=50mm (Cutting Tool Length) x=100mm (Cutting Tool Length)

CK-T4

8

5

RUNOUT ADJUSTABLE RA HOLDER

NEW BABY CHUCK CLAMPING RANGE: ø.5-20mm

COOLANT

THROUGH

x (Cutting Tool Length)

L

H

Adjusting Screw (Ordered Separately)

L 1

Adjusting Amount

Coolant Pipe (Ordered Separately)

Adjustment

Catalog Number

Weight (lbs.)

ød

øD

øD 1

L

L 1

H

Collet

x=50mm x=100mm

HSK-A63-NBS8-105NRA

.5-8mm .984

1.772

4.13 4.53 5.32

1.69 1.38 1.77

.91-1.65 1.61-2.36 1.89-2.56

23μm 34μm 2.6 18μm 27μm 4.0 17μm 25μm 5.3

NBC8- † NBC13- † NBC20- †

-NBS13-115NRA -NBS20-135NRA

2.5-13mm 1.378 2.283 2.5-20mm 1.811 2.756

• MEGA NEW BABY NUT is included, coolant pipe, collet, wrench and adjusting screw must be ordered separately • “H” indicates the adjustment length with an adjusting screw

Runout Adjustment Amount The adjustment amount depends on the length of the holder and the tool projection length. The maximum adjustment amount possible for 50mm and 100mm tool projection lengths is listed in the table. The maximum adjustment amount is a reference figure available when the Adjustment Screw is tightened with the listed allowable torque. Allowable Torque for Adjusting Screw

Wrench (Optional)

Allowable Torque (N-m)

NEW BABY CHUCK

Adjusting Amount

NBS8-NRA NBS13-NRA NBS20-NRA

CK-T2.5

3

x=50mm (Cutting Tool Length) x=100mm (Cutting Tool Length)

CK-T3

6

6

RUNOUT ADJUSTABLE RA HOLDER

Hi-POWER MILLING CHUCK CLAMPING RANGE: ø20-32mm

COOLANT

R

S P I N D L E S Y S T E M DUA L CON T AC T

THROUGH

x (Cutting Tool Length)

L

H

Adjusting Screw (Ordered Separately)

L 1

Adjusting Amount

Coolant Pipe (Ordered Separately)

Adjustment

Catalog Number

Min Clamping

ød

øD øD1

L

L1

H

H Max

Wrench Weight (lbs.)

x=50mm x=100mm

HSK-A63-HMC20S-145NRA 20mm

1.969 2.835 5.71 1.81 2.72-3.11

3.35

1.77 2.09

23μm 33μm FK45-50L 6.4 20μm 28μm FK68-75L 8.6

32mm

2.677 3.386 6.10 2.17

— 4.72

-HMC32S-155NRA ™

• Coolant pipe, collet, wrench and adjusting screw must be ordered separately • “H” indicates the adjustment length with an adjusting screw • Adjusting screws cannot be used with models marked ™

Runout Adjustment Amount The adjustment amount depends on the length of the holder and the tool projection length. The maximum adjustment amount possible for 50mm and 100mm tool projection lengths is listed in the table. The maximum adjustment amount is a reference figure available when the Adjustment Screw is tightened with the listed allowable torque. Allowable Torque for Adjusting Screw

Adjusting Amount

NEW Hi-POWER MILLING CHUCK

Wrench (Optional)

Allowable Torque (N-m)

HMC20S-NRA HMC32S-NRA

CK-T4

8

x=50mm (Cutting Tool Length) x=100mm (Cutting Tool Length)

7

BIG KAISER Precision Tooling Inc. A Member of the BIG DAISHOWA Group 2600 Huntington Blvd | Hoffman Estates, IL 60192 | P: (224) 770-2999 | F: (224) 770-2997 | bigkaiser@us.bigkaiser.com | www.bigkaiser.com

09/2018 © Copyright 2018 BIG KAISER

Page 1 Page 2 Page 3 Page 4 Page 5 Page 6 Page 7 Page 8

Powered by