INA KR30-PP-A-NMT – Cam Follower with Needle Rollers

General Information

• Brand: INA
• Item Number: KR30-PP-A-NMT
• Also Known As: KR30.2RS
• Category: Cam Follower / Stud Type Track Roller
• Manufacturer Part Number: 0055454200078
• EAN: 4047643179409
• Country of Origin: Germany

Dimensions & Weight

• Stud Diameter (d): 12 mm / 0.4724 in
• Outer Diameter (D): 30 mm / 1.1811 in
• Roller Width (B): 14 mm / 0.5512 in
• Stud Length (B, from datasheet): 40 mm
• Weight: 0.095 kg

Product Properties

• Seal: 2L – LS-type lip seals on both sides
• Sealing System: PP – Lip seals on both sides
• P-type: two zinc-plated sheet steel washers with intermediate NBR element
• Axially preloaded sealing lip
• Temperature range approx. –30 °C to +100 °C
• Running Surface: Standard (crowned outer ring)
• Mounting / Excenter Ring: Other mounting method, with hexagon nut (NMT), no eccentric ring
• Rolling Elements: Needle rollers with cage

Technical Data (Schaeffler / Medias)

• Stud fit diameter (d1): 12 mm
• Stud width (B): 40 mm
• Basic dynamic load rating, radial (Crw): 6,800 N
• Basic static load rating, radial (C0r): 8,700 N
• Speed with permanent grease lubrication (nDG): 5,500 rpm
• ECLASS: 23-05-15-02

Suffix Description

• PP: Lip seals on both sides (P type – steel washers with NBR, axially preloaded sealing lip, –30 °C to +100 °C)
• A: Alteration in internal construction (updated design, functionally identical to older notation)
• NMT: Supplied with hexagon nut

Product Description

The INA KR30-PP-A-NMT is a compact cam follower with needle rollers, designed for use on flat or profiled tracks. A thick-walled outer ring allows it to carry high radial loads, while the threaded stud makes mounting easy using the included hexagon nut.

Inside, needle rollers guided by a cage:

• Prevent direct contact between rolling elements
• Reduce friction compared with full-complement cam followers
• Allow higher speeds and lower heat generation

The PP sealing system (LS-type lip seals on both sides) protects the interior from contamination and helps retain lubricant, extending service life. The cam follower is designed to run on a flat counter-track, not in a housing bore, and can absorb axial loads caused by misalignment in both directions.

Typical Applications

• Conveyor and material handling systems
• Linear guidance systems
• Cam and follower mechanisms
• Packaging and automation machinery
• General industrial track and guide systems

   PACKAGE INCLUDES: ONE (1) INA Cam Follower KM30 PPA NMT