Metric Locknut

**TIMKEN Spherical Roller Bearings: Precision, Durability, and Versatility for Demanding Applications**

TIMKEN Spherical Roller Bearings are engineered to deliver exceptional performance in the most challenging industrial environments. Designed to accommodate heavy radial loads, moderate thrust loads, and significant misalignment, these bearings are a cornerstone of reliability in machinery where durability and precision are critical. Available in both metric and inch configurations, TIMKEN Spherical Roller Bearings are complemented by a range of high-quality accessories, including metric locknuts, ensuring secure mounting and optimal performance in diverse applications.

### **Technical Features & Performance Advantages**
TIMKEN Spherical Roller Bearings feature a robust design with two rows of barrel-shaped rollers, a common spherical outer ring raceway, and dual inner ring raceways. This unique geometry allows the bearings to self-align, compensating for shaft misalignment and housing deflection—key advantages in applications where operational alignment cannot be guaranteed. The bearings are available in open, sealed, or shielded configurations, providing flexibility for different lubrication and contamination control requirements.

Key technical benefits include:
– **High Load Capacity:** Optimized roller profiles and premium steel construction enable superior radial and axial load handling.
– **Extended Service Life:** Advanced heat treatment processes and precision grinding reduce friction and wear, enhancing longevity.
– **Misalignment Compensation:** Accommodates up to 2° of static and dynamic misalignment, reducing stress on adjacent components.
– **Enhanced Lubrication Retention:** Options include factory-applied grease or specialized coatings for extreme conditions.

For secure installation, TIMKEN offers **metric locknuts** designed to maintain precise bearing preload and prevent loosening under high-vibration conditions. These locknuts feature precision threads and locking mechanisms, ensuring consistent clamping force and operational reliability.

### **Typical Applications**
TIMKEN Spherical Roller Bearings and their accessories are widely used in industries requiring robust power transmission solutions, including:
– **Industrial Machinery:** Conveyors, gearboxes, crushers, and pulverizers benefit from their ability to handle shock loads and misalignment.
– **Mining & Construction:** Excavators, bulldozers, and drilling equipment rely on their durability in abrasive, high-load environments.
– **Material Handling:** Crane hooks, hoists, and heavy-duty conveyors use these bearings for smooth operation under variable loads.
– **Wind Energy:** Turbine pitch and yaw systems demand the bearings’ ability to withstand dynamic forces and misalignment.
– **Automotive & Transportation:** Heavy-duty axles, transmissions, and off-road vehicles utilize their high load capacity and resilience.

With a legacy of engineering excellence, TIMKEN Spherical Roller Bearings—along with their metric and inch accessories—deliver unmatched performance, reducing downtime and maintenance costs across critical applications. Whether in harsh industrial settings or precision mechanical systems, these bearings provide the strength, alignment flexibility, and reliability needed to keep operations running smoothly.

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Part Number Thread D1 D3 D4 Bn Lockwasher Suitable Lockplate No
KM28
M140x2
180 mm
180 mm
22 mm
MB 28
N/A
KML28
M140x2
165 mm
165 mm
22 mm
MBL 28
N/A
KM29
M145x2
190 mm
190 mm
24 mm
MB 29
N/A
KM30
M150x2
195.000 mm
195.000 mm
24 mm
MB 30
N/A
KML30
M150x2
180 mm
180 mm
24 mm
MBL 30
N/A
KM31
M155x3
200 mm
200 mm
25 mm
MB 31
N/A
KM2
M15x1
25 mm
25 mm
5 mm
MB 02
N/A
KM32
M160x3
210 mm
210 mm
25 mm
MB 32
N/A
KML32
M160x3
190 mm
190 mm
25 mm
MBL 32
N/A
KM33
M165x3
210 mm
210 mm
26 mm
MB 33
N/A
KM34
M170x3
220 mm
220 mm
26 mm
MB 34
N/A
KML34
M170x3
200 mm
200 mm
26 mm
MBL 34
N/A
KM3
M17x1
28 mm
28 mm
5 mm
MB 03
N/A
KM36
M180x3
230 mm
230 mm
27 mm
MB 36
N/A
KML36
M180x3
210 mm
210 mm
27 mm
MBL 36
N/A
KM38
M190x3
240 mm
240 mm
28 mm
MB 38
N/A
KML38
M190x3
220 mm
220 mm
28 mm
MBL 38
N/A
KM40
M200x3
250 mm
250 mm
29 mm
MB 40
N/A
KML40
M200x3
240 mm
240 mm
29 mm
MBL 40
N/A
KM4
M20x1
32 mm
32 mm
6 mm
MB 04
N/A
KM5
M25x1.5
38 mm
38 mm
7 mm
MB 05
N/A
KM6
M30x1.5
45 mm
45 mm
7 mm
MB 06
N/A
KM7
M35x1.5
52 mm
52 mm
8 mm
MB 07
N/A
KM8
M40x1.5
58 mm
58 mm
9 mm
MB 08
N/A