ZF 635501921 – Roller Bearing 50×85×35 mm for ZF Marine Gearboxes

ID 1232862

$ 376.93

1-2 weeks delivery time

- +

Add to cart

The ZF 635501921 is a 50×85×35 mm roller bearing made of chromium steel. Dynamic load rating: 80 kN. Static load rating: 70 kN. Max speed: 6000 RPM (oil). C3 clearance. Designed for ZF marine gearboxes and heavy-duty transmissions. Open type. Oil or grease lubrication.

Description
Ask a Question

ZF 635501921 – Roller Bearing 50×85×35 mm for ZF Marine Gearboxes

The ZF 635501921 roller bearing is a heavy-duty, precision-engineered bearing designed for marine and industrial applications. With dimensions of 50×85×35 mm and a robust construction using high-grade chromium steel, this bearing ensures reliable operation under high load and speed conditions. Optimized for radial and axial load handling, it features low friction, corrosion-resistant properties, and compatibility with both oil and grease lubrication. Ideal for ZF transmissions and propulsion systems operating in harsh marine environments.

Key Features:

Roller design for efficient handling of radial and axial loads
High-quality chromium steel (52100 / GCr15) construction
Dynamic load capacity: 80 kN
Static load capacity: 70 kN
Speed rating: up to 6000 RPM (oil lubrication)
Open design for improved lubrication and cooling
C3 radial clearance for high-speed performance
Heat-treated for hardness (HRC 60–64) and wear resistance
Precision class: ABEC 3 / P5
Corrosion-resistant option available for marine conditions

Specifications:

Part Number	ZF 635501921
Bearing Type	Roller Bearing
Inner Diameter (ID)	50 mm
Outer Diameter (OD)	85 mm
Width	35 mm
Material	Chromium Steel (52100 / GCr15)
Dynamic Load Rating	80 kN
Static Load Rating	70 kN
Speed Rating (Oil)	6000 RPM
Lubrication	Oil or grease compatible
Operating Temp. Range	-40°C to +150°C
Clearance	C3
Precision Class	ABEC 3 / P5
Hardness	HRC 60–64
Weight	1.5 kg
Sealing	Open (sealed versions available on request)
Corrosion Resistance	Optional protective coating for marine use

Applications:

Marine propulsion systems and ZF gearboxes
Industrial transmissions and heavy-duty equipment
Hydraulic pumps and winches
Power generation and marine engines

Benefits:

High load capacity ensures durability under stress
Open design improves lubrication and cooling efficiency
Corrosion resistance supports operation in saltwater environments
Low friction minimizes energy loss and wear
Long service life reduces downtime and maintenance
Standardized dimensions for easy replacement