Kitagawa BR Series Standard Chuck

Manufacturer: Kitagawa Corporation.
Model: BR Series

Features

Gripping accuracy: ≤ 0.01 mm T.I.R.
Reduced jaw-lift
Compatible with Kitagawa B-200 & BB200 series
With Tnut-Plus: jaw repeatability ≤ 0.01 mm T.I.R.
With BR-AJC-M (quick jaw change): reduced setup time, repeatability ≤ 0.01 mm T.I.R.
Note: Values measured at 10 mm above Kitagawa standard soft jaw, using a test bar.
For BR12 only: Both accuracies ≤ 0.015 mm T.I.R.
Based on internal testing standards.

Specifications

Model	BR05	BR06	BR08	BR10	BR12
Through-hole (mm)	33	53	66	81	106
Gripping Range (mm) Max.	135	170	210	254	315
Gripping Range (mm) Min.	7	16	22	31	35
Jaw Stroke (Diameter) (mm)	5.4	5.5	7.4	8.8	10.6
Plunger Stroke (mm)	10	12	16	19	23
Max. Draw Bar Pull Force (kN) at OD Gripping	16.6	23	35	49	60
Max. Draw Bar Pull Force (kN) at ID Gripping	8.3	11.5	17.5	24.5	30
Max. Static Gripping Force (kN) at OD Gripping	36	58.5	90	123	156
Max. Static Gripping Force (kN) at ID Gripping	18	29.3	45	61.5	78
Max. Speed (min⁻¹)	8000	6000	5000	4500	3500
Dynamic Gripping Force at Max. Speed (kN)	15.5	22.5	36	44	53
Moment of Inertia (kg·m²)	0.015	0.052	0.14	0.32	0.80
Net Weight (kg)	6.2	12.8	22.2	35.8	57.0
Matching Cylinder	F0933H	SR1453C SS1453K	SR1566C SS1666K	SR1781C SS1881K	SS2110K
Matching Soft Jaws	Standard Extra Tall	Standard Extra Tall Small diameter gripping	Standard Extra Tall Small diameter gripping	Standard Extra Tall Small diameter gripping	Standard Extra Tall Small diameter gripping
Matching Hard Jaws	HB04N1	HB06A1 HB06B1	HB08B1 HB08N1	HB10A1	HB12N1
Tnut-Plus (Option)	TN05PLUS	TN06PLUS	TN08PLUS	TN10PLUS	TN12PLUS

Note:
The blue 3D data represents the jaw positions at the fully open (UC) and fully closed (OC) ends for both Parasolid and STEP.
The pink 3D data represents the jaw positions at the centre of stroke (HCL), the appropriate open end (HOL) and the appropriate closed end (HUL) for both Parasolid and STEP.

Jaw stroke

A stroke mark to check the jaw stroke position is stamped on the No. 1 jaw part on the body.
When the jaw is at the open end, the base line of the master jaw is aligned with the outer line of the full stroke range as shown in Figure 11.
The base line moves across the full stroke range when the jaw is opened / closed. However, the base line must be within the appropriate stroke range when the chuck grips a workpiece.