KBG | KBR Square Single Nut
KBG and KBR square single nuts are ball screw nut options designed with a square body for direct mounting, stable support, and compact linear motion assemblies.
Use this page to review square nut dimensions, mounting hole references, CAD downloads, and part number construction.
KBG | KBR Square Single Nut Overview
Square Body
Square nut geometry supports direct mounting and stable positioning in compact motion assemblies.
Ground Option
KBG indicates a ground ball screw nut option for higher precision requirements.
Rolled Option
KBR indicates a rolled ball screw nut option for cost-effective designs.
Bolt Pattern
Dimension tables include mounting hole sizes, pitch values, and tapped hole references.
Mechanical Dimensions
Use this table to compare screw diameter, lead, nut dimensions, mounting dimensions, and load ratings for KBG | KBR square single nut configurations.
Swipe left or right to view the full dimension table.
| Screw Diameter D (mm / inch) |
Lead (mm / inch) |
Nut Overall Length L (mm / inch) |
Nut Width E (mm / inch) |
Nut Height G (mm / inch) |
Mounting Hole Size B1 (mm / inch) |
Mounting Hole Pitch B (mm / inch) |
Mounting Hole Size A1 (mm / inch) |
Mounting Hole Pitch A (mm / inch) |
Tapped Hole M / Depth Z | Basic Dynamic Load Rating Ca (N) | Basic Static Load Rating Coa (N) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 6 (0.236) | 1 (0.039) | 20 (0.787) | 13 (0.512) | 11 (0.433) | 2.5 (0.098) | 8 (0.315) | 2.5 (0.098) | 15 (0.591) | M3 / Depth3.5 | 680 | 1200 |
| 8 (0.315) | 1 (0.039) | 20 (0.787) | 14 (0.551) | 13 (0.512) | 3 (0.118) | 8 (0.315) | 2.5 (0.098) | 15 (0.591) | M2.5x0.45 / Depth 3 | 780 | 1650 |
| 8 (0.315) | 1 (0.039) | 22 (0.866) | 15 (0.591) | 13 (0.512) | 1.5 (0.059) | 12 (0.472) | 2.5 (0.098) | 17 (0.669) | M2.5x0.45 / Depth 3 | 780 | 1650 |
Mechanical Drawing
Click the preview image to expand the mechanical drawing. Use the drawing callouts with the dimension table above.
Selection Notes
Screw Diameter
Review screw diameter and lead together to match the required speed, thrust, and positioning needs.
Mounting Envelope
Confirm the nut body, mounting, and envelope dimensions against your mechanical design.
Load Ratings
Compare Ca and Coa ratings during early sizing and confirm final selection with application conditions.
Engineering Review
DINGS’ Motion USA can help review accuracy grade, axial clearance, length, lead, and customization needs.
Downloads
Product Catalogs
KBG | KBR CAD Files
Part Number Construction
| KBG | 06 | 01 | D | X | - | 60 | R | 90 | C3 | Z | - | 001 |
| ① | ② | ③ | ④ | ⑤ | ⑥ | ⑦ | ⑧ | ⑨ | ⑩ | ⑪ |
KBR = Square single nut (rolled)
01K = Non-standard ball lead, 1 mm
S = End deflector type
T = Return tube type
C = End-cap type
L = Left-hand
LR = Right- and left-hand
C5 = JIS C5
C7 = JIS C7
C10 = JIS C10
T = ≤ 0.005 mm
S = ≤ 0.02 mm
N = ≤ 0.05 mm
Build a Ball Screw Nut Part Number
Use the ball screw nut part number configurator to help define series, screw diameter, lead, thread direction, accuracy grade, axial clearance, and custom requirements.
Open Part Number BuilderNeed help selecting KBG | KBR square single nut?
DINGS’ Motion USA can help review ball screw diameter, lead, nut style, accuracy grade, axial clearance, load rating, and custom shaft requirements for your application.