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W Series

W Series Conveyor Roller Bearing is a rolling bearing specially designed for conveyor systems. It is often used in conveyor belt rollers to provide low friction and high-efficiency rotation support. These bearings offer durability and high load-bearing capacity, making them suitable for heavy loads and continuous operation in conveyor systems. W series bearings are typically sealed to prevent the ingress of dust, dirt and moisture, thereby extending their service life. They are widely used in mining, metallurgy, logistics and other industrial fields to help improve production efficiency, reduce maintenance needs and ensure the smooth operation of conveying systems.

Hantar Pertanyaan

W SERIES · CONVEYOR ROLLER · PROFILE GROOVE

W Series Conveyor Roller Bearing

W-profile outer ring 90° V-groove double row angular contact

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Profile Groove Geometry

The outer ring features a W-shaped profile formed by two right-angled V-grooves, enabling the bearing to roll on round, V-shaped, or concave tracks with 90° angle compatibility.[citation:2]

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Dual Load Capacity

Based on a double row angular contact ball bearing design, the unit supports high radial and axial forces in both directions, suitable for guided motion systems.[citation:2]

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Thick-Walled Outer Ring

The reinforced outer ring construction provides increased structural rigidity and impact resistance, extending service life in material handling environments.[citation:2]

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Sealed Protection

Equipped with dual-lip contact rubber seals (2RS) on both sides to prevent ingress of dust, moisture, and debris in conveyor applications.[citation:2][citation:3]

Technical parameters

Bore diameter range4.76mm - 12mm

Outer diameter range19.56mm - 45.72mm

Width range7.87mm - 15.88mm

Profile angle90° V-groove

Sealing type2RS / ZZ options

Cage materialNylon / steel

Temperature range-40°C to +120°C

Bearing materialGCr15 bearing steel

Application scenarios

Conveyor Systems

Roller support in material handling conveyors for manufacturing, warehousing, and logistics operations.[citation:3]

Guide Rail Systems

Guidance rollers for linear motion systems, industrial robots, and automated production lines.[citation:5]

Mobile Equipment

Rollers for transfer carts, shuttle systems, and movable machinery bases.[citation:5]

Automation Equipment

Precision rollers for cutting machines, assembly lines, and packaging equipment.[citation:5]

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Installation and maintenance

Mounting Press into roller tube ends using appropriate fixtures. Ensure proper alignment to prevent side loading on the profile groove.

Lubrication Bearings are pre-greased and sealed. For open variants, use EP2 lithium grease suitable for the operating temperature range.

Storage Store in original packaging in a dry environment with humidity below 60% to prevent corrosion of precision surfaces.

Inspection Regularly check for unusual noise or vibration, which indicates potential seal damage or contamination ingress.[citation:3]

Item No.	D1	D2	H	H1	H2	d	Remark
1237W	40	37	13.5	8.5	5	12	Pressed steel cover
1238W	37.5	35	13.5	8.5	5	12	Pressed steel cover
1245W	45	42	15	10	5	12	Pressed steel cover
1250W	50	48	13.5	8.5	5	12	Pressed steel cover
1255W	55	51	16	11	5	12	Pressed steel cover
1260W	59	56	17	11.8	5.2	12	Pressed steel cover
1560W	60	55.5	16	10.5	5.5	15	Pressed steel cover
1257W	57	54	22	11	11	12	Pressed steel cover
1257-16	57	54	16	11	5	12	Pressed steel cover
1248W	48	42	15	13	2	12	Pressed steel cover

W Series

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