Cylindrical nut CBG · CBR

threadedfor lead screwfor ball screw

Overview
The CBG and CBR cylindrical single nuts are compact ball screw nuts for linear motion assemblies, available in ground (CBG) and rolled (CBR) versions for industrial applications.

Part Number Construction
Example: CBG 06 01 D X - 60 R 90 C3 Z - 001

• Series: CBG = Cylindrical single nut (ground); CBR = Cylindrical single nut (rolled)
• Screw diameter (mm): 06 = 6 mm
• Lead (mm): 01 = Standard ball lead, 1 mm; 01K = Non-standard ball lead, 1 mm
• Ball return type: D = Deflector; S = End deflector; T = Return tube; C = End-cap
• Custom option (non-standard)
• Threaded section length (mm): decimal point indicated by "_"
• Thread direction: R = Right-hand; L = Left-hand; LR = Right- & Left-hand
• Total screw length (mm): decimal point indicated by "_"
• Accuracy grade: C3, C5, C7, C10 (JIS standards)
• Axial clearance / preload: Z = Preload; T ≤ 0.005 mm; S ≤ 0.02 mm; N ≤ 0.05 mm
• Custom serial number

Mechanical dimensions
Refer to the dimensional drawing for detailed geometry, keyway profile and mounting interfaces.

Cylindrical Single Nut Dimension Table
Screw diameter D (mm / in) — Lead (mm / in) — Nut diameter D (mm / in) — Nut overall length L (mm / in) — Keyway position S1 (mm / in) — Keyway length S (mm / in) — Keyway width W (mm / in) — Keyway depth H (mm / in) — Basic dynamic load rating Ca (N) — Basic static load rating Coa (N)
4 (0.157) — 1 (0.039) — 9 (0.354) — 10 (0.394) — - — - — - — - — 560 — 790
6 (0.236) — 1 (0.039) — 13 (0.512) — 14 (0.551) — 2 (0.079) — 10 (0.394) — 3 (0.118) — 1.8 (0.071) — 680 — 1200

Technical specifications

• Available series: CBG (ground) and CBR (rolled)
• Screw diameters: 4 mm (0.157 in) and 6 mm (0.236 in)
• Standard lead: 1 mm (0.039 in); non-standard option: 01K
• Nut diameters and lengths as per table (D=4 → Ø9 mm, L=10 mm; D=6 → Ø13 mm, L=14 mm)
• Ball return options: Deflector (D), End deflector (S), Return tube (T), End-cap (C)
• Thread direction: R (right), L (left), LR (right & left)
• Accuracy grades: JIS C3, C5, C7, C10
• Axial clearance / preload options: Z (preload); T ≤ 0.005 mm; S ≤ 0.02 mm; N ≤ 0.05 mm
• Basic dynamic/static load ratings example: D=4 → Ca 560 N / Coa 790 N; D=6 → Ca 680 N / Coa 1200 N
• Decimal point in length fields indicated by "_"; custom lengths and serial numbers available on request