ZARF2575 L-TV Extended Combined Bearing

Simplified Mounting: The 65mm extended inner ring eliminates the need for precision spacer rings when securing the locknut.
Maximum Rigidity: Pre-loaded axial cylindrical rollers eliminate deflection, ensuring perfect repeatability in positioning tasks.
Wear Resistance: Advanced heat-treated raceways prevent surface spalling under the high stress of rapid acceleration and deceleration.
Flange Mount Ready: Thick outer ring with precise mounting holes guarantees a rigid connection to the machine frame.

Technical Data

Technical Parameter	Metric Value
Inner Bore Diameter (d)	25.00 mm
Outer Diameter (D)	75.00 mm
Total Width (T)	65.00 mm
Precision Standard	P4 / SP (Super Precision)

Product Specifications

Specification	Details
Item Type	Axial/Radial Combined Bearing
Model Number	ZARF2575 L-TV
Bearing Design	Needle Roller / Axial Cylindrical Roller
Material	High-Purity GCr15 / SAE 52100 Steel
Cage Material	Glass-Fiber Reinforced Polyamide (TV)
Washer Type	Stepped / Extended Shaft Washer (L)

Product Introduction

The ZARF2575 L-TV is the extended-washer variant of our high-precision 25mm bore combined bearing series. Measuring 25 x 75 x 65 mm, this unit features an inner shaft washer that is significantly wider (L) than the outer assembly. This specific design allows for the direct and secure tightening of precision locknuts, preventing distortion and simplifying the mounting process on ball screw journals. Manufactured to super-precision tolerances and featuring a robust TV polyamide cage, the ZARF2575 L-TV is built to endure the punishing cycles of industrial manufacturing. It delivers unmatched axial stiffness and rotational accuracy, serving as a critical foundation for automated equipment built by our international B2B partners.

Applications

Precision grinding machines and electrical discharge machining (EDM) equipment.
High-load ball screw drive systems.
Heavy duty industrial robotics and positioning stages.

FAQ

Q: What is the main difference between ZARF2575 TV and ZARF2575 L-TV?
A: The primary difference is the total width and the inner washer design. The standard TV has a total width of 50mm, while the L-TV features an extended inner washer, bringing the total width to 65mm for easier locknut clamping.
Q: Are these bearings supplied sealed?
A: ZARF series combined bearings are typically supplied open (unsealed) to allow for integration into the machine's central lubrication system, though custom sealing options may be available upon request.

OEM & Custom Service

We supply comprehensive B2B contract manufacturing services, providing custom internal clearances, specialized testing reports (COA), and heavy-duty bulk packaging for large-scale industrial projects.

Packing & Delivery

Fully immersed in premium anti-rust fluid, vacuum-packed in heavy foil bags, enclosed in durable individual cartons, and securely palletized for damage-free worldwide distribution.