GY 5200 Self Centering Chucks

Double Guide Master Top Jaws With A2 PlateType

Engineered for consistent quality and a longer operational life, the GY 5200 Self-Centering Lathe Chuck features a robust Double Guide Master Top Jaw design. Built to handle demanding machining tasks, these chucks offer exceptional versatility and precision.

Key Features

Construction & Material Specifications
Our self-centering lathe chucks are engineered for high-precision performance and long-term industrial use.Equipped with A2 Type Plates for specialized spindle noses.
    • 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 (5″) 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 5200 Model Numbers
Chuck Size (MM) Chuck Size (Inches) Short Taper Through Hole C.I. Body S.G. Body Steel Body
3 Jaw 4 Jaw 3 Jaw 4 Jaw 3 Jaw 4 Jaw
125 5″ A2-4 32 13231254 13241254 23231254 23241254 33231254 33241254
160 6 1/4″ A2-4 42 13231604 13241604 23231604 23241604 33231604 33241604
160 6 1/4″ A2-5 42 13231605 13241605 23231605 23241605 33231605 33241605
200 8″ A2-4 55 13232004 13242004 23232004 23242004 33232004 33242004
200 8″ A2-5 55 13232005 13242005 23232005 23242005 33232005 33242005
200 8″ A2-6 55 13232006 13242006 23232006 23242006 33232006 33242006
250 10″ A2-6 76 13232506 13242506 23232506 23242506 33232506 33242506
250 10″ A2-8 76 13232508 13242508 23232508 23242508 33232508 33242508
315 12 1/2″ A2-6 105 13233156 13243156 23233156 23243156 33233156 33243156
315 12 1/2″ A2-8 105 13233158 13243158 23233158 23243158 33233158 33243158
400 15 3/4″ A2-8 136 13234008 13244008 23234008 23244008 33234008 33244008
400 15 3/4″ A2-11 136 13234011 13244011 23234011 23244011 33234011 33244011
Technical Specification
Size 125mm 160mm 200mm
Taper Nose A2-4 A2-4 A2-5 A2-4 A2-5 A2-6
A 125 160 160 200 200 200
B 63.513 63.513 82.563 63.513 82.563 106.375
C 32 42 42 55 55 55
D 66 75 75 83 83 83
E 107 119 119 129 129 129
F 21 22 23 22 23 26
G 60 71 71 85 85 85
H 13 13 15 13 15 16
J M 8 M 10 M 10 M 10 M 10 M 10
P.C.D K 108 140 140 176 176 176
Tol. on K ±0.25 ±0.30 ±0.30 ±0.30 ±0.30 ±0.30
L 16 19.05 19.05 22.25 22.25 22.25
M M 8 M 10 M 10 M 10 M 10 M 10
N 5 5 6 5 6 8
P 108 108 133 108 133 165
R 14.7 14.7 16.3 14.7 16.3 19.45
S 6.5 6.5 6.5 6.5 6.5 6.5
T 12 12 12 12 12 14
U 82.6 82.6 104.8 82.6 104.8 133.4
Size of Sq. Key 9 11 11 11 11 11
Technical Specification
Size 250mm 315mm 400mm
Taper Nose A2-6 A2-8 A2-6 A2-8 A2-8 A2-11
A 250 250 315 315 400 400
B 106.375 139.719 106.375 139.719 139.719 196.869
C 76 76 105 105 136 136
D 96 96 110 110 120 120
E 150 150 169 169 190 190
F 28 30 32 32 34 36
G 100 100 115 115 136 136
H 16 18 16 18 18 20
J M 12 M 12 M 16 M 16 M 16 M 16
P.C.D K 224 224 286 286 362 362
Tol. on K ±0.35 ±0.35 ±0.40 ±0.40 ±0.40 ±0.40
L 27 27 31.75 31.75 38.1 38.1
M M 12 M 12 M 12 M 12 M 16 M 16
N 8 8 8 8 8 10
P 165 210 165 210 210 280
R 19.45 24.2 19.45 24.2 24.2 29.4
S 6.5 8 6.5 8 8 10
T 14 18 14 18 18 20
U 133.4 171.4 133.4 171.4 171.4 235
Size of Sq. Key 14 14 14 14 17 17