Aetna Flat Flanged Idler Pulley - Double Row Bearing

Aetna high speed flat flanged idler pulleys with a double row bearing. The flanges keep the belt on the pulley, and the pulleys are bushed to clear 1/2", 5/8" and 3/4" bolts. They are used as tensioners or direction changers where loads and speeds are greater than unground bearings suit.

Finish: Yellow zinc plated finish. Aetna is a brand of Aetna Bearing Company, based in Livonia, Michigan, USA.

Where this product is used

• Agricultural machinery, including harvesting and baling equipment
• Flat belt drives that need a tensioner or a direction change
• Heavy-duty drives running at higher speeds
• General workshop and maintenance replacement of worn idlers

Features

• Heavy gauge precision-formed steel with an annular strengthening rib and a double row of steel rivets
• Double-row, sealed, precision angular contact bearing, lubricated for life, for higher capacity and rigidity
• Steel bushing gives proper bolt clamping and centring
• Basic radial load rating of the bearing: 3,340 lbf (14.86 kN)
• Bearing is permanently lubricated and sealed against dirt and grime

Key specifications

Available sizes

Fitting and use

Mount the idler on a bolt that matches the bore, or the reduction bush where one is fitted, and clamp through the bush or inner ring only so the pulley rim turns freely on the bearing.

The bearing is sealed and lubricated at the factory. Keep water, grit and solvents away from the seals, and replace the idler if the bearing runs rough or noisy.

Choosing the right option

Match the idler to the belt it runs on (belt type), then the outside diameter, the bore or bolt size, and the width the belt needs. The flanges keep the belt on the pulley, so the face width needs to suit the belt.

The model codes and dimensions for each size are in the sizes table. If you have the old idler, match its model code or measure the outside diameter, bore and width.

Related idlers: Aetna Flat Flanged Idler Pulley 8" OD x 5/8" Bore x 1-1/2" Wide - F16424-B6, Aetna Flat Non-Flanged Idler Pulley 8" OD x 5/8" Bore x 3-1/4" Wide - S26452-B6, Don Dye Flat Flanged Idler Pulley - Double Row Bearing, 5.75 to 10" OD.