4.057 Bearing MR0024 Combination Bearings 40*77.7*54mm
d: 40mm
D: 77.7mm
T: 54mm
H: 40.7mm
Weight: 0.87kg
Bolt tolerance: –0.05 mm
Structure: Combined bearing, combination bearing, high load cam followers
Also Known As: 4.057, MR0024, MR 0024, MR-0024, MR0004, MR 0004, MR-0004 and so on
4.057 Bearing Specification:
4.057 bearing is combined roller bearing, which can be used in many applications.
For this model number，
d: 40mm
D: 77.7mm
T: 54mm
H: 40.7mm
Weight: 0.87kg
Bolt tolerance: –0.05 mm
Outer ring: Case-hardened steel UNI 20 MNCr 5
Inner ring: Hardened steel En 31 – SAE 52100
Structure: Combined bearing, combination bearing, high load cam followers
Also Known As: 4.057, MR0024, MR 0024, MR-0024, MR0004, MR 0004, MR-0004 and so on
Bearing typical applications is as below,
– Material handling loaders and unloading machines
– Palletizers
– Cranes and hoists
– Horizontal and vertical feed and lift units
– Froklift trucks
Bearing Photo:
MR0024 roller bearing
Combined Roller Bearing Size Chart:
| Italy No. | China No. | Germany No. | D (mm) | T (mm) | d (mm) | H (mm) | h (mm) | Weight (kg) | ||
| MR0706 | 4.053 | 52.5 | 40 | 30 | 33 | 27 | 0.46 | |||
| MR0021 | CRF62 | ZGN306230E | MR0001 | 4.054 | 62 | 42 | 30 | 37.5 | 30.5 | 0.53 |
| MR0022 | CRF70.1 | ZGN357036E | MR0002 | 4.055 | 70.1 | 48 | 35 | 44 | 36 | 0.8 |
| MR0023 | CRF77.7 | ZGN407736E | MR0003 | 4.056 | 77.7 | 54 | 40 | 48 | 36.5 | 1 |
| MR0024 | MR0004 | 4.057 | 77.7 | 54 | 40 | 40.7 | 29 | 0.87 | ||
| MR0025 | CRF88.4 | ZGN458844E | MR0005 | 4.058 | 88.4 | 59 | 45 | 57 | 44 | 1.62 |
| 4.059 | 101.2 | 67 | 50 | 46 | 33 | 1.74 | ||||
| 4.060 | 107.7 | 71 | 55 | 53 | 40 | 2.27 | ||||
| MR0027 | CRF107.7 | ZGN6010755E | MR0007 | 4.061 | 107.7 | 71 | 60 | 69 | 55 | 2.82 |
| MR0029 | CRF123 | ZGN6012356E | MR0009 | 4.062 | 123 | 80 | 60 | 72.3 | 56 | 3.89 |
| MR0030 | CRF149 | MR0010 | 4.063 | 149 | 108 | 60 | 78.5 | 58.5 | 6.52 | |
Questions buyers ask when MR0024 and 54MM is still under review
When is MR0024 and 54MM worth comparing against nearby other ball & roller bearings options?
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.
What details usually matter before approving MR0024 and 54MM for repeat supply?
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.
Which next step usually helps after MR0024 and 54MM is shortlisted?
A quick review of Other Ball & Roller 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.
Why keep a supporting guide linked beside MR0024 and 54MM?
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.
Shipping Method:
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
Payment Terms:
We accept T/T, W/U, PAYPAL, L/C etc
Buyer FAQ
Questions buyers ask before choosing the next bearing option
What should I confirm before ordering 4.057 Bearing MR0024 Combination Bearings 40*77.7*54mm?
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.
Can this bearing be matched for replacement or repeat supply?
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.
Which product family does this bearing belong to?
This item is handled within the Other Ball & Roller Bearings family. Comparing the family page can help buyers review similar sizes, seal options, load direction, and related bearing choices before requesting a quote.
What affects price and lead time for this bearing?
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.
How is this bearing checked before delivery?
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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