Inner (d): 107.95mm/ 4.25 inch
Outer (D): 190.50mm/ 7.50 inch
Width (B): 31.75mm/ 1.25inch
Mass: 4.10kg/ 9.039lbs
Seal: without
Number of Row: single row
Replacements: RLS 34, LS21.1/2,LS 21.1/2, LS 21 1/2, LJ4.1/4J, LJ 4.1/4J, LJ 4.1/4, LJ4.1/4JCNS, LJ 4.1/4JCNS
RLS34 bearing is an imperial radial deep groove ball bearing designed for various applications.
Inner (d): 107.95mm/ 4.25 inch
Outer (D): 190.50mm/ 7.50 inch
Width (B): 31.75mm/ 1.25inch
Mass: 4.10kg/ 9.039lbs
Seal: without
Number of Row: single row
Relubrication Feature: without
Certificate: ISO9001: 2015
Warranty: 1 year
Precision: ABEC1, P0
Radial Internal Play: standard CN
Replacements: RLS 34, LS21.1/2,LS 21.1/2, LS 21 1/2, LJ4.1/4J, LJ 4.1/4J, LJ 4.1/4, LJ4.1/4JCNS, LJ 4.1/4JCNS
1. Versatile Design:
RLS 34 bearings are highly adaptable and suitable for a wide range of applications, including industrial machinery, automotive systems, and household appliances. Their simple yet robust design makes them a reliable choice across various industries.
2. Low Friction:
Bearing LS21.1/2 is engineered to minimize friction during operation, these bearings reduce energy loss and heat generation, improving efficiency and performance. This makes them ideal for applications where smooth and consistent motion is essential.
3. High-Speed Capability:
LJ4.1/4J bearing is designed to handle high rotational speeds, these bearings enable faster and more efficient operation in demanding applications, such as electric motors, turbines, and precision equipment.
4. Low Noise and Vibration:
Optimized for quiet and stable performance, these bearings reduce operational noise and vibration, making them suitable for environments where sound levels are critical, such as medical devices or residential applications.
5. Minimal Maintenance:
With a durable construction and reliable performance, these bearings require less frequent maintenance, lowering operational costs and ensuring long-term functionality.
| Bearing Model Number | Dimension (Inch) | Mass | |||
| d | D | B | KG | ||
| LJ3 3/8 | RLS27 | 3 3/8 | 7 1/2 | 1 9/16 | 4.9 |
| LJ3 1/2 | RLS28 | 3 1/2 | 6 1/2 | 1 1/8 | 2.33 |
| LJ3 3/4 | RLS30 | 3 3/4 | 6 3/4 | 1 1/8 | 2.47 |
| LJ4E | RLS32 | 4 | 7 1/4 | 1 1/4 | 3.18 |
| LJ4 1/4 | RLS34 | 4 1/4 | 7 1/2 | 1 1/4 | 3.86 |
| LJ4 1/2 | RLS36 | 4 1/2 | 8 | 15/16 | 4.67 |
| LJ4 3/4 | RLS38 | 4 3/4 | 8 1/4 | 15/16 | 4.9 |
| LJ5E | RLS40 | 5 | 9 | 1 3/8 | 6.35 |
| LJ5 1/2 | RLS44 | 5 1/2 | 9 1/2 | 1 3/8 | 6.85 |
| LJ6E | RLS48 | 6 | 10 1/2 | 1 9/16 | 9.48 |
| LJ6 1/2 | RLS52 | 6 1/2 | 11 | 1 9/16 | 10.2 |
| LJ7E | RLS56 | 7 | 12 | 1 3/4 | 14.1 |
| LJ7 1/2 | RLS60 | 7 1/2 | 12 1/2 | 1 3/4 | 14.5 |
Comparison helps when dimensional fit is only part of the decision and load direction, sealing, clearance, speed, temperature, or repeat-order stability still need to be confirmed. Reviewing one or two nearby options early usually reduces sourcing mistakes later.
Buyers normally confirm the part reference, main dimensions, application, speed range, operating environment, sealing needs, and any packaging or marking requirements. That gives the supplier a cleaner basis for confirming availability and suitable alternatives.
A quick review of Deep Groove Ball Bearings, one more commercial destination, and one practical guide usually saves time. That combination helps separate simple replacement orders from jobs that still need fit or application review.
Because it makes later decisions faster. When sizing notes, application cues, and nearby options stay close to the product, engineering, purchasing, and maintenance teams can revisit the same logic without starting the review from zero.
1. Sea shipping for mass cargos (GW > 500KGS)
2. Air shipping (GW between 100KGS – 500 KGS)
3. Express, such as DHL, TNT, Fedex, UPS for small cargos ( GW < 100KGS)
4. If you have shipping agent in China, we can send goods to your shipping agent's warehouse
We accept T/T, W/U, PAYPAL, L/C etc
Buyer FAQ
Confirm the bearing number, bore size, outside diameter, width, seal or shield type, cage material, clearance, precision level, quantity, and application. These details help prevent a size match from becoming a performance mismatch.
Yes. Replacement and repeat orders are easier when the original marking, measured dimensions, photos, application, and quantity are available. If the marking is unclear, the team can start from the size and working condition.
This item is handled within the Deep Groove Ball Bearings family. Comparing the family page can help buyers review similar sizes, seal options, load direction, and related bearing choices before requesting a quote.
Price and lead time can change with quantity, stock availability, precision grade, clearance, material, cage, seal or shield type, lubrication, packaging, and whether the order needs standard matching or custom production.
Inspection can include material review, dimensional measurement, noise and vibration checks, surface and crack checks, visual review, and packaging inspection according to the confirmed order requirements.
Need help checking fit, price, or lead time? Request a bearing quote
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