
Precision Linear Motion Components
About NB Corporation
NB Corporation (Nippon Bearing) is a leading manufacturer of precision linear motion components with over 50 years of engineering excellence. Specializing in ball splines, cross roller guides, linear bushings, and integrated linear stages, NB delivers innovative solutions for applications requiring exceptional accuracy and reliability. From the proprietary STUDROLLERĀ® anti-creep system in crossed roller guides to the TOPBALLĀ® Ultimate Series with 64x life extension, NB's comprehensive product line serves industries including robotics, semiconductor, automation, and precision measurement equipment worldwide.
Core Capabilities
Precision Manufacturing
Over 50 years of expertise in precision linear motion components with ultra-tight tolerances
Innovative Design
Proprietary STUDROLLERĀ® anti-creep system and integrated actuator designs for superior performance
Complete Line
Comprehensive range from basic linear bushings to advanced ball splines and precision stages
Application Support
Engineering resources and selection tools for optimal component specification and performance
Featured Products

Ball Spline SSP/SSPM
Precision linear motion mechanism utilizing recirculating ball elements that can sustain loads and transfer torque either simultaneously or independently. Available in cylindrical, flange, and block types with shaft sizes from 4mm to 100mm.
Key Specifications:
- Shaft Diameter: 4mm to 100mm
- Types: SSP (with key), SSPM (without key)
- Configurations: Cylindrical, flange, block types

NV/SV Cross Roller Slide Way
Non-recirculating crossed roller slide way with STUDROLLERĀ® anti-creep cage system for ultra-precision movement. Features precision ground rails and innovative retainer design for optical and measurement equipment.
Key Specifications:
- Precision: Ultra-precision (UP), precision (P), high (blank)
- Technology: STUDROLLERĀ® anti-creep system
- Rails: Four rails with eight retainers

Slide Bush Linear Bushing
Linear ball bushing utilizing recirculating ball elements with outer cylinder and ball retainer for smooth linear motion. Available in standard, flange, triple wide flange, and GM series configurations.
Key Specifications:
- Design: Standard (SM) and flange (SMF) types
- Ball Motion: Recirculating ball elements
- Construction: Outer cylinder with ball retainer

BG Type Linear Actuator
Integrated linear actuator combining slide guide and precision ball screw in a single compact unit. Features unique "U" shaped guide rail with four-point contact ball grooves for high rigidity and positioning repeatability of ±1μm.
Key Specifications:
- Integration: Linear guide + ball screw in one unit
- Repeatability: ±1μm (precision grade)
- Contact: Four-point ball grooves, four ball circuits

TOPBALLĀ® High Load Linear Bushing
Ultimate Series high-load linear bushing with 4x load capacity and 64x life compared to standard bushings. Features adjustable load plates with tapered ends, floating seals, and self-aligning capability for extreme applications.
Key Specifications:
- Load Capacity: 4x standard Slide Bush
- Life: 64x longer than standard series
- Speed: Up to 180m/min maximum
Need NB Linear Motion Products?
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