SB204 Pillow Block Bearing SB204-12 Insert Ball Bearing SB204-12G With Grease Groove 3/4"*47*25mm

This SB204 pillow block bearing series (covering SB204-12 and SB204-12G variants) is a heavy-duty insert ball bearing integrated with a sturdy pillow block housing, designed for easy installation and reliable load support. Featuring key dimensions 3/4" (19.05mm) ID × 47mm OD × 25mm Width, the SB204-12G insert ball bearing is equipped with a built-in grease groove for continuous lubrication, while the pillow block housing provides stable mounting on flat surfaces. Crafted from premium GCr15 bearing steel (hardness 58-62 HRC) with precision-ground raceways, it withstands radial loads, minor axial loads, and harsh industrial environments—ideal for high-speed or continuous-operation machinery. The grease groove design ensures long-term lubrication retention, reducing friction and extending service life.

• Agricultural machinery (tractor, harvester) conveyor systems
• Industrial conveyor belt roller assemblies
• Mining equipment (crusher, screen) support components
• Food processing machinery (conveyor, mixer) bearing housings
• HVAC system fan bearings
• Textile machinery guide rollers
• General industrial machinery maintenance & replacement markets
• Material handling equipment (pallet conveyors, stackers)

• Direct replacement for original SB204 series pillow block bearings of mainstream industrial equipment (e.g., SKF SB204-12, NSK SB204 insert bearings)
• Interchangeable with equivalent pillow block bearings (matching 3/4"×47×25mm dimensions + grease groove) from brands like NTN, FAG
• Domestic alternative: ZWZ SB204 series insert ball bearings with pillow block housing

NTN models series:

1. Q: What’s the advantage of the grease groove in SB204-12G bearing?

   A: The built-in grease groove stores and distributes lubricant evenly during operation, reducing friction between raceways and rollers, preventing wear, and extending the bearing’s service life without frequent re-lubrication.

2. Q: How to install the SB204 pillow block bearing?

   A: The pillow block housing features mounting holes for direct fixation on flat surfaces. Simply insert the SB204-12/SB204-12G insert bearing into the housing, align the shaft, and secure with bolts—no complex alignment tools required.

3. Q: Which equipment is suitable for SB204 pillow block bearings?

   A: They’re widely used in low-to-medium speed, heavy-load machinery like conveyor belts, agricultural equipment, mining screens, and food processing conveyors—especially in environments requiring stable mounting and long-term lubrication.