Timken® ER31 TIMER31

Timken® ball bearing housed units feature a wide-inner-ring ball bearing for additional shaft support. Designed for mounting on straight shafts with a slip fit, these housed units are available in an extensive array of types and sizes to accommodate many industrial applications. When set screws are used, Timken® suggests using shaftguarding Technology™, a stainless-steel, hardened band that is inserted in a groove on the inner ring. When the set screws are tightened, they press against the band, tightening the grip on the shaft. Unlike traditional set screws, which can dig into the shaft, there are no nicks, raised metal or permanent shaft damage. The stainless band resists the formation of corrosion on the shaft.

Timken®, ER31, Ball Insert Bearing Housed Unit, Relubricatable Standard Duty, Series: ER Series, 1-15/16 in Bore, 3.543 in OD, 1 Rows, 2.031 in Width, Double Seal Closure, 7890 lb Dynamic/5210 lb Static Load, Steel Bearing, Rubber Seal, Nylon Cage, 2500 rpm Maximum, -30 to 275 deg F, Black Oxide

• Set screw wide-inner-ring
• This bearing is designed for use in applications where low-starting torque and low-running torque are necessary
• Test results indicate an average of 95% reduction in start-up torque when using ER-DD instead of the standard ER bearing
• Running torque is reduced up to 85% to 90%

• Catalog https://externalassets.unilogcorp.com/ASSETS/DOCUMENTS/ITEMS/EN/Fafnir_1012KRRB_Catalog.pdf