GY 2100 Self Centering Chucks

Single Guide Standard Jaws

Upgrade your machining precision with Self-Centering Chucks, engineered for consistent quality and a longer service life. Designed as single-guide standard jaw chucks, these high-performance components are built to handle rigorous industrial applications with ease.

Key Features

Construction & Material Specifications
Our self-centering lathe chucks are engineered for high-precision performance and long-term industrial use.
    • Premium Chuck Bodies: Available in three configurations to match your RPM and durability requirements:
      • High-Tensile Cast Iron: Alloyed with Chromium, Nickel, and Manganese for superior wear resistance (Hardness: 210 BHN).
      • SG Iron (500/7 Grade): Designed for high-speed operations and extended service life (Hardness: 210 BHN).
      • Nickel-Chrome Alloy Steel: Features hardened and ground jaw ways for maximum accuracy and high-RPM stability (Hardness: 45 HRC).
    • Generous Through-Hole: Designed with large bore diameters to accommodate bar stock and long workpieces easily.
    • Precision Scroll: Drop-forged from high-tensile alloy steel, precision machined, and hardened to 35 HRC for consistent centering accuracy.
    • Hardened Jaws: Constructed from low-carbon alloy steel, case-hardened to 62 HRC, and ground on both sides to ensure a smooth fit and perfect pitch.
    • Durable Pinions: Made from specialized alloy steel and case-hardened to 50 HRC for high torque resistance.
    • Included Accessories: Every chuck includes a high-strength operating key and a full set of mounting bolts (3, 4, or 6 pieces).
    • Precision Jaw Systems: Available in both 3-jaw and 4-jaw configurations to provide superior grip and centering accuracy.
    • Extensive Size Range: We offer a comprehensive selection of sizes, from compact 80mm (3.1/4″) units up to heavy-duty 400mm (15.3/4″) chucks.

Accessories Included

Every Chuck comes ready for immediate setup with a comprehensive set of standard accessories:
  • 1 Set of Outside Hard Solid Jaws
  • 1 Set of Inside Hard Solid Jaws
  • 1 Pc. Chuck Operating Key
  • 1 Set of Mounting Bolts
Looking for more flexibility? Optional accessories including Soft Solid Jaws. are also available to customize your setup.

Applications

Self Centring Lathe Chucks are geared scroll chucks for use on lathes, rotary tables, dividing heads, milling machines etc.
GY 2100 Model Numbers
Chuck Size (mm) Chuck Size (Inches) Through Hole (mm) C.I. Body S.G. Body Steel Body
3 Jaw 4 Jaw 3 Jaw 4 Jaw 3 Jaw 4 Jaw
80 3 1/4″ 16 1013080 1014080 2013080 2014080 3013080 3014080
100 4″ 20 1013100 1014100 2013100 2014100 3013100 3014100
125 5″ 32 1013125 1014125 2013125 2014125 3013125 3014125
160 6 1/4″ 42 1013160 1014160 2013160 2014160 3013160 3014160
200 8″ 55 1013200 1014200 2013200 2014200 3013200 3014200
250 10″ 76 1013250 1014250 2013250 2014250 3013250 3014250
315 12 1/2″ 105 1013315 1014315 2013315 2014315 3013315 3014315
350 13 3/4″ 115 1013350 1014350 2013350 2014350 3013350 3014350
400 15 3/4″ 136 1013400 1014400 2013400 2014400 3013400 3014400
Technical Specification
Size (mm) 80mm 100mm 125mm 160mm 200mm 250mm 315mm 350mm 400mm
Size (Inch) 3.1/4″ 4″ 5″ 6.1/4″ 8″ 10″ 12.1/2″ 13.3/4″ 15.3/4″
A (mm) 80 100 125 160 200 250 315 350 400
B H7 (mm) 56 70 95 125 160 200 260 290 330
C (mm) 16 20 32 42 55 76 105 115 136
D (mm) 44 50 56 65 75 85 94 100 105
E (mm) 13 17 20 30 29 34 43 40 55
G (mm) 32 42 51 70 85 105 125 140 145
H (mm) 4 4 5 5 6 6 7 7 7
J (mm) M 6 M 8 M 8 M 10 M 10 M 12 M 16 M 16 M 16
PCD K (mm) 67 83 108 140 176 224 286 318 362
Tol. on K ±0.20 ±0.25 ±0.25 ±0.30 ±0.30 ±0.35 ±0.40 ±0.40 ±0.40
Size of Sq. Key (mm) 6 9 9 11 11 14 14 14 17