ZMA35/58 INA

LOCK NUT ZMA35/58 INA

The INA ZMA35/58 is a heavy-duty precision lock nut designed for axial locking of rolling bearings. Key dimensional parameters are as follows: Thread specification: M35×1.5 (metric fine thread) Outer diameter (D): 58 mm (2.2835 inch) Width/Height (B/H): 22 mm (0.8661 inch) Net weight: 0.26 kg ECLASS/ECLASS2 code: 23-05-92-03 This nut features radially arranged locking pegs, conforming to Schaeffler’s precision locking standards for heavy-duty applications.

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Technical Datasheet: INA ZMA35/58 Precision Lock Nut
1. Core Dimensions & Specifications
The INA ZMA35/58 is a heavy-duty precision lock nut designed for axial locking of rolling bearings. Key dimensional parameters are as follows:
Thread specification: M35×1.5 (metric fine thread)
Outer diameter (D): 58 mm (2.2835 inch)
Width/Height (B/H): 22 mm (0.8661 inch)
Net weight: 0.26 kg
ECLASS/ECLASS2 code: 23-05-92-03
This nut features radially arranged locking pegs, conforming to Schaeffler’s precision locking standards for heavy-duty applications.
2. Material Specifications
Constructed from high-strength carbon steel (C45E equivalent), the ZMA35/58 exhibits:
High tensile strength (≥ 600 MPa)
Surface hardness optimized for wear resistance and anti-loosening performance
Moderate corrosion resistance suitable for industrial environments
The locking pegs are made of hardened steel to ensure reliable torque retention under dynamic loads.
3. Key Manufacturing Processes
Forging: Closed-die forging ensures uniform grain structure and mechanical strength.
Thread machining: Precision thread rolling delivers accurate pitch and high load-bearing capacity.
Heat treatment: Quenching and tempering enhance toughness and fatigue resistance.
Finishing: Precision grinding of mating surfaces guarantees concentricity and axial locking accuracy.
4. Service Life & Load Capacity
Under standard operating conditions (ISO 281), the ZMA35/58 has an axial breaking load of 300,000 N, ensuring long-term reliability under heavy axial loads. Service life is primarily influenced by:
Correct mounting torque
Lubrication condition
Environmental contamination levels
5. Application Scenarios & Industries
This lock nut is engineered for precision machinery and heavy-duty applications:
Machine tools: Spindle assemblies and feed axes
Industrial gearboxes: Axial locking of bearings in heavy-duty transmissions
Automotive & heavy machinery: Wheel hubs and powertrain components
Aerospace & robotics: Precision positioning systems
Its radial locking peg design provides superior anti-vibration performance, making it ideal for high-dynamic-load environments.
6. Maintenance Guidelines
Lubrication: Apply a thin layer of high-performance lithium-based grease (NLGI 2) to thread surfaces during installation.
Inspection interval: Every 2,000 operating hours to check for loosening or wear.
Cleaning: Use non-corrosive solvents to remove contaminants before reinstallation.
7. Installation Instructions
Pre-installation: Verify thread cleanliness and inspect locking pegs for integrity.
Torque specification: Tighten the set screw (M4) to 5 N·m; recommended mounting torque is 40 N·m (reference value).
Alignment: Ensure concentricity between the nut and shaft to avoid uneven load distribution.
Post-installation check: Confirm axial locking stability and verify no radial play exists in the assembly.
BRAND FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI
BEARINGS NO. ZMA35/58 INA
TYPE BUSH BEARINGS
Inner(d)mm
Outer(D)mm 58
Width(B)mm 22
WEIGHT/KG 0.26
EAN CODE
Tel

+86-510-6831-3099

E-mail

fonkin-industries@188.com

Address

No.105, Huixin Road,Yuqi Industrial Park, Huishan District, hunqi Road, Yuqi Town, Wuxi, Jiangsu Province, P.R.CHINA

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BRAND	FONKIN/SKF/FAG/INA/NSK/NTN/TIMKEN/SNR/IKO/KOYO/ASAHI/FYH/THK/HIWIN/PMI
BEARINGS NO.	ZMA35/58 INA
TYPE	BUSH BEARINGS
Inner(d)mm
Outer(D)mm	58
Width(B)mm	22
WEIGHT/KG	0.26
EAN CODE