B49-3 Auto Gearbox Bearing B49-3UR Deep Groove Ball Bearing B49-3E Bearings 49x90x19.7mm

B49-3 is a medium-load deep groove ball bearing tailored for general industrial transmission scenarios, designed to bear stable radial loads and moderate bidirectional axial loads. With updated standard dimensions of 49mm ID × 90mm OD × 19.7mm Width, it adopts an optimized deep groove raceway structure—integrated precision-ground raceways enhance load distribution uniformity, while the moderate width design balances installation space and bearing capacity . Crafted from premium GCr15 bearing steel, it undergoes high-temperature quenching and raceway superfinishing (hardness 58-62 HRC), delivering excellent wear resistance and fatigue strength to adapt to continuous medium-load operation. The bearing is available in open-type (standard) or double-sided metal seal (ZZ) configurations, with pre-filled lithium-based grease for ZZ models, meeting both regular maintenance and maintenance-free demand scenarios.

General industrial machinery transmission components, pump & valve drive systems, textile machinery auxiliary parts, printing equipment transmission mechanisms, agricultural machinery drive components, and mechanical tool auxiliary transmission structures

B49-3 Deep Groove Ball Bearing (interchangeable with bearings matching "B49-3 + deep groove ball structure + 49×90×19.7mm size" specifications, including:

• SKF equivalent deep groove ball bearing (matching 49×90×19.7mm dimensions)
• NSK medium-load deep groove ball bearing corresponding model
• Domestic equivalent: ZWZ B49-3 deep groove ball bearing)

• B49-7UR(49X87X14)
• B49-3(49x90x19.8)
• B43-4UR (43x87x19.5)
• B43-3UR (43x73x12)
• NSK B45-106N (45x90x17)
• NSK B60-57NXUR (60x101x17.2)
• NSK-40tm18u40al (40x80x16)
• NSK B45-111E (45x105x20)
• NSK 32TM12U40AL (32X84X15)
• NSK 65TM02U40A (65X100X17)
• 19BSW07 19x32x7
• 32TM12 32x84x15
• 40TM11 40x90x19
• 40TM18VZ 48x80x16
• 60TM04N 60x101x17
• 65TM02A 65x100x17
• B28-31 28x72x17
• B29-11 29x78x18
• B31-15 31x72x9
• B31-16N 31x80x16
• B31-26N 31x93x21
• B31-26N 31x80x16.5
• B32-33 32x72x15
• B32Z-6 32.5x76x11
• B35-200 35X55X9
• B35Z-7 35.5x95x12
• B37-10 37x88x18
• B37-9N 37x85x13
• B43-3 43x73x12
• B43-4 43x87x19.5
• B45-106N 45x90x17
• B45-111E 45x105x21
• B45-90 45x100x17.9/21
• B49-5 49x95x18
• B49-7 49x87x14
• B57Z-8 57.5x80x14
• B60-57 60x101x17.2
• B67-1 67x92x13
• B67Z-7 57.5x80x12/13
• DG328012 32.5x80x11.5
• DG4880 48x80x16
• B40-121 40x72x14