BT1B 332973

 

Dimensions

d	260 mm	Bore diameter
D	540 mm	Outside diameter
T	109 mm	Total width
d1	≈376.7 mm	Shoulder diameter of inner ring
B	102 mm	Width of inner ring
C	80 mm	Width of outer ring
r1,2	min.6 mm	Chamfer dimension of inner ring
r3,4	min.6 mm	Chamfer dimension of outer ring
a	93 mm	Distance side face to pressure point

Abutment dimensions

da	max.325 mm	Diameter of shaft abutment
db	min.286 mm	Diameter of shaft abutment
Da	min.463 mm	Diameter of housing abutment
Da	max.514 mm	Diameter of housing abutment
Db	min.493 mm	Diameter of housing abutment
Ca	min.18 mm	Minimum width of space required in housing on large side face
Cb	min.29 mm	Minimum width of space required in housing on small side face
ra	max.5 mm	Radius of shaft fillet
rb	max.5 mm	Radius of housing fillet

Calculation data

Basic dynamic load rating	C	2 120 kN
Basic static load rating	C0	3 050 kN
Fatigue load limit	Pu	250 kN
Reference speed		850 r/min
Limiting speed		1 300 r/min
Limiting value	e	0.35
Calculation factor	Y	1.7
Calculation factor	Y0	0.9

BT1B 332973 Single Row Tapered Roller Bearing: Precision Engineering for Demanding Applications
The BT1B 332973 single row tapered roller bearing is designed to handle combined radial and axial loads efficiently, making it ideal for high-stress environments. Its precision-ground rollers and raceways ensure optimal load distribution, minimizing friction and wear even under heavy-duty conditions. The bearing's tapered geometry allows for adjustable internal clearance, enabling precise alignment in assemblies. Constructed from high-grade chrome steel, it offers superior hardness and fatigue resistance, extending service life in applications prone to shock loads or variable speeds.

Key Advantages for Industrial Performance
This bearing stands out for its versatility and durability. The advanced heat treatment process enhances its core toughness while maintaining surface hardness, ensuring reliable performance in temperatures ranging from -30°C to 120°C. Its single-row design simplifies installation and maintenance, reducing downtime in production lines. Sealed variants are available to protect against contaminants in harsh environments like mining or agriculture. Additionally, the BT1B 332973 complies with ISO dimensional standards, ensuring compatibility with OEM and replacement systems across global markets.

Wide-Ranging Applications Across Industries
The BT1B 332973 is widely used in automotive transmissions, axle systems, and wheel hubs due to its ability to manage thrust and radial forces simultaneously. Beyond vehicles, it serves critical roles in construction equipment, gearboxes, conveyor systems, and wind turbine pitch controls. Industrial machinery manufacturers favor this bearing for its balance of cost-efficiency and performance, particularly in applications requiring prolonged operational life with minimal lubrication. For optimal results, pairing it with matched components and adhering to load-speed ratings is recommended to maximize ROI in both light and heavy industrial setups.

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