How does the preload affect performance?

Preload reduces axial play to zero, allowing for smooth operation with low torque and high rigidity.

What materials are used for the ball screw?

The shaft is made of SCM450, S55C, or CF53, and the nut is made of SCM415 or 20CrMo, both hardened to HRC58-62.

What is the lead time for delivery?

Lead time depends on the required quantity and is negotiated. Peak season and off-season lead times are approximately one month.

High-Performance Sfk Series Ball Screw for Precision Engineering

Name: High-Performance Sfk Series Ball Screw for Precision Engineering
Brand: Lishui Wangong Precision Machinery Co., Ltd.
SKU: 754517205

Zhejiang, ChinaLishui Wangong Precision Machinery Co., Ltd.

US$60.00

1 Set

Sample price:US$60.00/piece.Request sample

Product profile

Customization

Available

Flange

With Flange

Nut Number

Single

Model NO.

SFk1402

Nut Type

Circulator

Precision

Rows Number

3-Row

Screw Diameter

11-20mm

Type

Inner Loop

Product Name

Miniature Tbi Size Ball Screw

Model No.

Sfk1402

Manufacturing Process

Rolled Thread

Length

Max:L6000mm(Custmized )

End Machine

Standard Drawings/Custmized

Application

Automatic Machinery

Structure

Ball Screw+Nut+Steel Ball

Feature

Smoothly

Material

CF53

Hardness

HRC58-62

Treatment

Heat Treatment

Interchanged

Easy Interchanged Into Tbi Ball Screw

Tolerance

C5/C7/C10 Precision

Preload

Z0/Z1/Z2 Preload

Ballscrew Pitch

2mm

Transport Package

Wooden Cartons Packing or by Negotiation

Specification

SFK series

Trademark

ERSK

Origin

Lishui, Zhejiang, China

HS Code

84834010

Production Capacity

100000set. /Month

Key features

High Precision Grades: Available in C5, C7, and C10 precision levels for various engineering needs.

Customizable Length: Maximum length up to 6000mm, with customization options based on requirements.

TBI Interchangeable: ERSK brand ball screws can be easily interchanged with Taiwan TBI ball screws.

High Rigidity Preload: Preload options reduce axial play to zero for smooth, low-torque operation.

ISO9001 Certified: Manufacturing adheres to ISO9001-2008 standards with 100% finished product inspection.

OEM/ODM Service: Supports customization from samples and designs with professional R&D engineers.

High Durability Material: Made from SCM450/CF53 shafts and 20CrMo nuts, hardened to HRC58-62.

Fast Delivery: Large stock available with short delivery times based on quantity negotiation.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceSelf-branded

Lishui Wangong Precision Machinery Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs CertifiedExport Year: 17 Years CertifiedNearest Port: Ningbo Port , Shanghai PortAverage Response Time: ≤2.05h

AI-Powered supplier vetting

SummaryLishui Wangong Precision Machinery Co., Ltd. is a limited company founded in 2008, with 98 employees and operations covering R&D, manufacturing, sales, and service. It manufactures precision transmission components, including linear shafts, ball screws, linear guides, cylinder rails, linear bearings, and roller linear rails. The supplier demonstrates documented service procedures, complaint handling, corrective and preventive actions, export licensing, OEM/ODM capability, and customization from samples and designs. Production infrastructure includes lathing, CNC machining, milling, and ultrasonic cleaning facilities, with documented finished-product inspection instructions. However, it has no overseas warehouse, showroom, agent, or branch, and reports zero countries with overseas service coverage. Financial capacity is referenced for 2022–2024, but no financial performance details are provided. A BV audit is recorded with validity from April 16, 2025 to April 15, 2026, but the audit result is listed as 0...

Supplier typeThe supplier is identified as Lishui Wangong Precision Machinery Co., Ltd., a limited company founded in 2008. It is described as a combined business integrating R&D, production, sales, and service, and is not an offshore company or part of a larger company group.

After-Sales capabilityThe supplier has documented procedures and followed records for service capability assessment, corrective and preventive actions, and effective customer complaint handling. However, it has no overseas warehouse, showroom, agent, or branch, and reports service coverage in zero countries; therefore, its formal service processes are evidenced, while overseas after-sales reach is limited.

R&D capabilityThe supplier states that it has R&D capability, introduced new products during the past year, and provides ODM services. It can customize from samples and designs, but it explicitly has no available SDK; the available evidence supports product development capability but not a broader technology-platform capability.

Production capacityThe supplier manufactures multiple precision transmission components and operates lathing, CNC machining, milling, and ultrasonic cleaning facilities. It also has uniformly followed finished-product inspection instructions, but no quantitative productivity figures are provided and the audit evaluation result is recorded as 0, so overall production strength cannot be fully confirmed.

Customization capabilityThe supplier explicitly offers customization from samples and from customer designs, and also provides ODM services. These statements directly demonstrate both design-based customization and original design manufacturing capability.